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产品型号XD9260B20CER-Q的Datasheet PDF文件预览

XD9260/XD9261Series  
ETR05060-001  
COT Control, 1.5A Synchronous Step-Down DC/DC Converters  
AEC-Q100 Grade2  
GreenOperation-compatible  
GENERAL DESCRIPTION  
The XD9260/XD9261 series is a group of synchronous-rectification type DC/DC converters with a built-in P-channel MOS driver  
transistor and N-channel MOS switching transistor, designed to allow the use of ceramic capacitors. Output voltage is internally  
set in a range from 0.8V to 3.6V (accuracy: ±2.0%) increments of 0.05V. The device provides a high efficiency, stable power  
supply with an output current of 1.5A to be configured using only a coil and two capacitors connected externally. Oscillation  
frequency is set to 1.2MHz or 3.0MHz can be selected for suiting to your particular application.  
As for operation mode HiSAT-COT (*) control excellent in transient response, the XD9260 series is PWM control, the XD9261  
series is automatic PWM/PFM switching control, allowing fast response, low ripple and high efficiency over the full range of loads  
(from light load to heavy load).  
During stand-by, all circuits are shutdown to reduce current consumption to as low as 1.0μA or less. As for the soft-start function  
as fast as 0.3ms in typical for quick turn-on. With the built-in UVLO (Under Voltage Lock Out) function, the internal P-channel MOS  
driver transistor is forced OFF when input voltage becomes 2.00V or lower. The B types integrate CL High Speed discharge  
function which enables the electric charge at the output capacitor CL to be discharged via the internal discharge.  
(*) HiSAT-COT is an original Torex term for High Speed Transient Response.  
FEATURES  
Input Voltage Range  
Output Voltage Range  
Quiescent Current  
APPLICATIONS  
Car navigation systems  
Car audios  
:
:
:
:
:
2.7V5.5V  
0.8V3.6V (±2.0%)  
25μA (fOSC=3.0MHz)  
1.5A  
Output Current  
Car-mounted camera  
Oscillation Frequency  
1.2MHz, 3.0MHz  
ETC / Other automotive accessories  
90%  
Efficiency  
:
(VIN=3.7V, VOUT=1.8V, IOUT=200mA)  
HiSAT-COT Control  
100% Duty Cycle  
Control Methods  
:
:
:
:
:
:
:
:
:
:
:
:
:
:
PWM Control (XD9260)  
PWM/PFM Auto (XD9261)  
Thermal Shutdown  
Current Limit (Pendent character)  
Short Circuit Protection (Type B)  
Soft-Start  
Protection Circuits  
Functions  
UVLO  
CL High Speed Discharge (Type B)  
Ceramic Capacitor  
- 40℃ ~ + 105℃  
Capacitor  
Operating Ambient Temperature  
Packages  
USP-6C  
Environmentally Friendly  
EU RoHS Compliant, Pb Free  
TYPICAL APPLICATION CIRCUIT  
TYPICAL PERFORMANCE  
CHARACTERISTICS  
XD9260A18D / XD9261A18D  
L = LQM2MPN1R0MGH(1.0μH)  
CIN = 10μF CL = 10μF  
VOUT  
1.5A  
100  
90  
L
VIN  
VIN  
Lx  
80  
CE  
70  
CE  
VOUT  
XD9261  
XD9260  
VIN = 5.0V  
VIN = 3.7V  
60  
50  
40  
30  
20  
10  
0
PGND  
AGND  
CIN  
CL  
VIN = 5.0V  
VIN = 3.7V  
0.1  
1
10  
100  
1000  
10000  
Output Current: IOUT (mA)  
1/26  
XD9260/XD9261Series  
BLOCK DIAGRAM  
1) XD9260/XD9261 Series Type A (USP-6C)  
(*) The XD9260 offers a fixed PWM control, a Control Logic of PWM/PFM Selector is fixed at “PWM” internally.  
The XD9261 control scheme is a fixed PWM/PFM automatic switching, a Control Logic of PWM/PFM Selector is fixed at “PWM/PFM  
automatic switching” internally.  
Diodes inside the circuit are an ESD protection diode and a parasitic diode.  
2) XD9260/XD9261 Series Type B (USP-6C)  
(*) The XD9260 offers a fixed PWM control, a Control Logic of PWM/PFM Selector is fixed at “PWM” internally.  
The XD9261 control scheme is a fixed PWM/PFM automatic switching, a Control Logic of PWM/PFM Selector is fixed at “PWM/PFM  
automatic switching” internally.  
Diodes inside the circuit are an ESD protection diode and a parasitic diode.  
2/26  
XD9260/XD9261  
Series  
PRODUCT CLASSIFICATION  
1) Ordering Information  
XD9260①②③④⑤⑥-PWM Control  
XD9261①②③④⑤⑥-PWM/PFM Automatic switching control  
DESIGNATOR  
ITEM  
SYMBOL  
DESCRIPTION  
Refer to Selection Guide  
A
B
Type  
Output voltage options  
e.g. 1.2V → ②=1, =2  
1.25V → ②=1, =C  
②③  
Output Voltage  
0836  
0.05V increments : 0.05=A, 0.15=B, 0.25=C,  
0.35=D, 0.45=E, 0.55=F,  
0.65=H, 0.75=K, 0.85=L,  
0.95=M  
C
D
1.2MHz  
3.0MHz  
Oscillation Frequency  
Packages (Order Unit)  
(*1)  
⑤⑥-⑦  
ER-Q  
USP-6C (1,000pcs/Reel)  
(*1) The “-Q” suffix denotes “AEC-Q100” and “Halogen and Antimony free” as well as being fully EU RoHS compliant.  
2) Selection Guide  
SHORT PROTECTION  
TYPE  
OUTPUT VOLTAGE CL AUTO-DISCHARGE  
UVLO  
(LATCH)  
A
B
Fixed  
Fixed  
No  
No  
Yes  
Yes  
Yes  
Yes  
TYPE  
CHIP ENABLE  
CURRENT LIMIT  
SOFT-START TIME  
THERMAL SHUTDOWN  
A
B
Yes  
Yes  
Yes  
Yes  
Fixed  
Fixed  
Yes  
Yes  
3/26  
XD9260/XD9261Series  
PIN CONFIGURATION  
* The dissipation pad for the USP-6C package should be solder-plated in recommended mount pattern and metal masking so  
as to enhance mounting strength and heat release. If the pad needs to be connected to other pins, it should be connected  
to the GND (No. 1 and 2) pin.  
PIN ASSIGNMENT  
PIN NUMBER  
PIN NAME  
FUNCTIONS  
USP-6C  
1
2
3
4
5
6
PGND  
AGND  
VOUT  
CE  
Power Ground  
Analog Ground  
Output Voltage Monitor  
Chip Enable  
Lx  
Switching Output  
Power Input  
VIN  
FUNCTION  
CE PIN Function  
PIN NAME  
CE  
SIGNAL  
STATUS  
L
Stand-by  
Active  
H
Please do not leave the CE pin open.  
4/26  
XD9260/XD9261  
Series  
ABSOLUTE MAXIMUM RATINGS  
Ta=25℃  
PARAMETER  
Input Voltage  
SYMBOL  
VIN  
RATINGS  
UNITS  
-0.3+6.2  
V
V
Lx PIN Voltage  
VLx  
-0.3VIN+0.3 or +6.2(*1)  
Output Voltage  
CE Input Voltage  
Lx Current  
VOUT  
VCE  
ILx  
-0.3VIN+0.3 or +4.0(*2)  
-0.3+6.2  
V
V
-
mA  
mW  
Power Dissipation  
USP-6C  
Pd  
1000 (PCB mounted)  
-40+105  
Operating Ambient Temperature  
Storage Temperature  
Topr  
Tstg  
-55+125  
* All voltages are described based on the GND (AGND and PGND and VSS) pin.  
(*1) The maximum value should be either VIN+0.3V or +6.2V in the lowest.  
(*2) The maximum value should be either VIN+0.3V or +4.0V in the lowest.  
5/26  
XD9260/XD9261Series  
ELECTRICAL CHARACTERISTICS  
XD9260/XD9261 Series  
Ta=25℃  
PARAMETER  
SYMBOL  
CONDITIONS  
MIN.  
TYP.  
MAX.  
UNITS CIRCUIT  
When connected to external components,  
Output Voltage  
VOUT  
VIN  
<E-1>  
2.7  
<E-2>  
<E-3>  
V
V
IOUT=30mA  
-
-40℃≦Ta  
105  
105  
Operating Voltage Range  
Maximum Output Current  
-40℃≦Ta  
-
-
5.5  
-
When connected to external components (*1)  
VIN=<C -1>  
,
IOUTMAX  
1500  
mA  
V
OUT=0.6V,Voltage which Lx pin  
UVLO Voltage(*2)  
VUVLO  
-40℃≦Ta  
105  
1.35  
2.0  
2.68  
V
holding “L” level (*6)  
fOSC=1.2MHz  
-
-
-
-
-
-
-
-
-
15.0  
-
25.0  
30.0  
40.0  
50.0  
450  
500  
825  
900  
1.0  
-40℃≦Ta  
105  
105  
Quiescent Current  
(XD9261)  
Iq  
VOUT =VOUT(T) × 1.1V  
μA  
fOSC=3.0MHz  
fOSC=1.2MHz  
fOSC=3.0MHz  
25.0  
-
-40℃≦Ta  
250  
-
-40℃≦Ta  
105  
105  
Quiescent Current  
(XD9260)  
Iq  
VOUT =VOUT(T) × 1.1V  
μA  
400  
-
-40℃≦Ta  
Stand-by Current  
Minimum ON time  
ISTB  
VCE=0.0V  
0.0  
μA  
When connected to external components,  
VIN=<C-1>, IOUT=1mA  
tONmin  
<E-5>  
<E-6>  
<E-7>  
ns  
Thermal shutdown  
Thermal shutdown hysteresis  
Lx SW ”H” ON Resistance  
Lx SW ”L” ON Resistance (*4)  
Lx SW ”H” Leakage Current  
Lx SW ”L” Leakage Current  
Current Limit (*5)  
TTSD  
THYS  
RLXH  
RLXL  
ILeakH  
IleakL  
ILIMH  
-
-
150  
30  
-
-
-
-
VOUT=0.6V, ILX=100mA (*3)  
VOUT=VOUT(T) V × 1.1, ILX=100mA (*3)  
VIN=5.5V, VCE=0V, VOUT=0V, VLX=0.0V  
VIN=5.5V, VCE=0V, VOUT=0V, VLX=5.5V  
VOUT=0.6V, ILx until Lx pin oscillates  
-
0.14  
0.10  
0.0  
0.28  
0.20  
1.0  
30.0  
4.5  
-
-
μA  
μA  
A
-
0.0  
2.5  
3.0  
V
OUT=0.6V, Applied voltage to VCE  
Voltage changes Lx to “H” level (*6)  
OUT=0.6V, Applied voltage to VCE  
,
CE ”H” Voltage  
CE ”L” Voltage  
VCEH  
-40℃≦Ta  
105  
105  
1.40  
-
-
VIN  
V
V
V
,
VCEL  
-40℃≦Ta  
AGND  
0.30  
Voltage changes Lx to “L” level (*6)  
VIN=5.5V, VCE=5.5V, VOUT=0.0V  
VIN=5.5V, VCE=0.0V, VOUT=0.0V  
CE ”H” Current  
CE ”L” Current  
ICEH  
ICEL  
-0.1  
-0.1  
-
-
0.1  
0.1  
μA  
μA  
VCE=0.0V  
After "H" is fed to CE,  
the time by when clocks are generated at Lx pin.  
Sweeping VOUT  
OUT voltage which Lx becomes “L” level(*6)  
VCE=0V, VOUT=4.0V  
5.0V VOUT=VOUT(T)V × 0.9  
Soft-start Time  
tSS  
0.10  
0.30  
0.50  
ms  
Short Protection Threshold  
Voltage (Type B)  
,
VSHORT  
RDCHG  
0.17  
50  
0.27  
210  
0.37  
300  
V
V
CL Discharge (Type B)  
Unless otherwise stated, VIN=5V, VCE=5V, VOUT(T)=Nominal Value,  
The ambient temperature range (-40℃≦Ta105) is design Value.  
NOTE:  
(*1) When the difference between the input and the output is small, 100% duty might come up and internal control circuits keep P-ch driver turning  
on even though the output current is not so large.  
If current is further pulled from this state, output voltage will decrease because of P-ch driver ON resistance.  
(*2) Including UVLO detect voltage, hysteresis operating voltage range for UVLO release voltage.  
(*3)  
R
LXH  
= (VIN - Lx pin measurement voltage) / 100mA, RLXL= Lx pin measurement voltage / 100mA  
(*4) Design value for the XD9261 series.  
(*5) Current limit denotes the level of detection at peak of coil current.  
(*6) "H"=VIN ~ VIN - 1.2V, "L"=- 0.1V ~ + 0.1V  
6/26  
XD9260/XD9261  
Series  
ELECTRICAL CHARACTERISTICS (Continued)  
SPEC Table  
tONmin  
VOUT  
VOUT  
NOMINAL  
OUTPUT  
VOLTAGE  
Ta=25)  
-40℃≦Ta105)  
fOSC=1.2MHz  
<E-6>  
fOSC=3.0MHz  
<E-1> <E-2> <E-3> <E-1> <E-2> <E-3> <C-1>  
<E-5>  
MIN.  
<E-7>  
MAX.  
<E-5>  
MIN.  
<E-6>  
TYP.  
<E-7>  
MAX.  
VOUT(T)  
MIN.  
TYP.  
MAX.  
MIN.  
TYP.  
MAX.  
VIN  
TYP.  
0.80  
0.85  
0.90  
0.95  
1.00  
1.05  
1.10  
1.15  
1.20  
1.25  
1.30  
1.35  
1.40  
1.45  
1.50  
1.55  
1.60  
1.65  
1.70  
1.75  
1.80  
1.85  
1.90  
1.95  
2.00  
2.05  
2.10  
2.15  
2.20  
2.25  
2.30  
2.35  
2.40  
2.45  
2.50  
2.55  
2.60  
2.65  
2.70  
0.784 0.800 0.816 0.768 0.800 0.824  
0.833 0.850 0.867 0.816 0.850 0.876  
0.882 0.900 0.918 0.864 0.900 0.927  
0.931 0.950 0.969 0.912 0.950 0.979  
0.980 1.000 1.020 0.960 1.000 1.030  
1.029 1.050 1.071 1.008 1.050 1.082  
1.078 1.100 1.122 1.056 1.100 1.133  
1.127 1.150 1.173 1.104 1.150 1.185  
1.176 1.200 1.224 1.152 1.200 1.236  
1.225 1.250 1.275 1.200 1.250 1.288  
1.274 1.300 1.326 1.248 1.300 1.339  
1.323 1.350 1.377 1.296 1.350 1.391  
1.372 1.400 1.428 1.344 1.400 1.442  
1.421 1.450 1.479 1.392 1.450 1.494  
1.470 1.500 1.530 1.440 1.500 1.545  
1.519 1.550 1.581 1.488 1.550 1.597  
1.568 1.600 1.632 1.536 1.600 1.648  
1.617 1.650 1.683 1.584 1.650 1.700  
1.666 1.700 1.734 1.632 1.700 1.751  
1.715 1.750 1.785 1.680 1.750 1.803  
1.764 1.800 1.836 1.728 1.800 1.854  
1.813 1.850 1.887 1.776 1.850 1.906  
1.862 1.900 1.938 1.824 1.900 1.957  
1.911 1.950 1.989 1.872 1.950 2.009  
1.960 2.000 2.040 1.920 2.000 2.060  
2.70  
2.70  
2.70  
2.70  
2.70  
2.70  
2.70  
2.70  
2.70  
2.70  
2.70  
2.70  
2.70  
2.70  
2.70  
2.70  
2.70  
2.75  
2.83  
2.92  
3.00  
3.08  
3.17  
3.25  
3.33  
3.42  
3.50  
3.58  
3.67  
3.75  
3.83  
3.92  
4.00  
4.08  
4.17  
4.25  
4.33  
4.42  
4.50  
173  
184  
194  
205  
216  
227  
238  
248  
259  
270  
281  
292  
302  
313  
324  
335  
346  
350  
350  
350  
350  
350  
350  
350  
350  
350  
350  
350  
350  
350  
350  
350  
350  
350  
350  
350  
350  
350  
350  
247  
262  
278  
293  
309  
324  
340  
355  
370  
386  
401  
417  
432  
448  
463  
478  
494  
500  
500  
500  
500  
500  
500  
500  
500  
500  
500  
500  
500  
500  
500  
500  
500  
500  
500  
500  
500  
500  
500  
321  
341  
361  
381  
401  
421  
441  
461  
481  
502  
522  
542  
562  
582  
602  
622  
642  
650  
650  
650  
650  
650  
650  
650  
650  
650  
650  
650  
650  
650  
650  
650  
650  
650  
650  
650  
650  
650  
650  
71  
119  
121  
122  
123  
123  
130  
136  
142  
148  
154  
160  
167  
173  
179  
185  
191  
198  
200  
200  
200  
200  
200  
200  
200  
200  
200  
200  
200  
200  
200  
200  
200  
200  
200  
200  
200  
200  
200  
200  
166  
169  
171  
172  
160  
169  
177  
185  
193  
201  
209  
217  
225  
233  
241  
249  
257  
260  
260  
260  
260  
260  
260  
260  
260  
260  
260  
260  
260  
260  
260  
260  
260  
260  
260  
260  
260  
260  
260  
72  
73  
74  
86  
91  
95  
99  
104  
108  
112  
117  
121  
125  
130  
134  
138  
140  
140  
140  
140  
140  
140  
140  
140  
140  
140  
140  
140  
140  
140  
140  
140  
140  
140  
140  
140  
140  
140  
2.009 2.050 2.091 1.968 2.050  
2.112  
2.058 2.100 2.142 2.016 2.100 2.163  
2.107 2.150 2.193 2.064 2.150 2.215  
2.156 2.200 2.244  
2.112  
2.200 2.266  
2.205 2.250 2.295 2.160 2.250 2.318  
2.254 2.300 2.346 2.208 2.300 2.369  
2.303 2.350 2.397 2.256 2.350 2.421  
2.352 2.400 2.448 2.304 2.400 2.472  
2.401 2.450 2.499 2.352 2.450 2.524  
2.450 2.500 2.550 2.400 2.500 2.575  
2.499 2.550 2.601 2.448 2.550 2.627  
2.548 2.600 2.652 2.496 2.600 2.678  
2.597 2.650 2.703 2.544 2.650 2.730  
2.646 2.700 2.754 2.592 2.700 2.781  
7/26  
XD9260/XD9261Series  
ELECTRICAL CHARACTERISTICS (Continued)  
SPEC Table  
tONmin  
VOUT  
VOUT  
NOMINAL  
OUTPUT  
VOLTAGE  
Ta=25)  
-40℃≦Ta105)  
fOSC=1.2MHz  
<E-6>  
fOSC=3.0MHz  
<E-6>  
<E-1> <E-2> <E-3> <E-1> <E-2> <E-3> <C-1>  
<E-5>  
MIN.  
<E-7>  
MAX.  
<E-5>  
MIN.  
<E-7>  
MAX.  
VOUT(T)  
MIN.  
MIN.  
MAX.  
MIN.  
MIN.  
MAX.  
VIN  
TYP.  
TYP.  
2.75  
2.80  
2.85  
2.90  
2.95  
3.00  
3.05  
3.10  
3.15  
3.20  
3.25  
3.30  
3.35  
3.40  
3.45  
3.50  
3.55  
3.60  
2.695 2.750 2.805 2.640 2.750 2.833  
2.744 2.800 2.856 2.688 2.800 2.884  
2.793 2.850 2.907 2.736 2.850 2.936  
2.842 2.900 2.958 2.784 2.900 2.987  
2.891 2.950 3.009 2.832 2.950 3.039  
2.940 3.000 3.060 2.880 3.000 3.090  
2.989 3.050 3.111 2.928 3.050 3.142  
3.038 3.100 3.162 2.976 3.100 3.193  
3.087 3.150 3.213 3.024 3.150 3.245  
3.136 3.200 3.264 3.072 3.200 3.296  
3.185 3.250 3.315 3.120 3.250 3.348  
3.234 3.300 3.366 3.168 3.300 3.399  
3.283 3.350 3.417 3.216 3.350 3.451  
3.332 3.400 3.468 3.264 3.400 3.502  
3.381 3.450 3.519 3.312 3.450 3.554  
3.430 3.500 3.570 3.360 3.500 3.605  
3.479 3.550 3.621 3.408 3.550 3.657  
3.528 3.600 3.672 3.456 3.600 3.708  
4.58  
4.67  
4.75  
4.83  
4.92  
5.00  
5.08  
5.17  
5.25  
5.33  
5.42  
5.50  
5.50  
5.50  
5.50  
5.50  
5.50  
5.50  
350  
350  
350  
350  
350  
350  
350  
350  
350  
350  
350  
350  
355  
361  
366  
371  
377  
382  
500  
500  
500  
500  
500  
500  
500  
500  
500  
500  
500  
500  
508  
515  
523  
530  
538  
545  
650  
650  
650  
650  
650  
650  
650  
650  
650  
650  
650  
650  
660  
670  
680  
689  
699  
709  
140  
140  
140  
140  
140  
140  
140  
140  
140  
140  
140  
140  
142  
144  
146  
148  
151  
153  
200  
200  
200  
200  
200  
200  
200  
200  
200  
200  
200  
200  
203  
206  
209  
212  
215  
218  
260  
260  
260  
260  
260  
260  
260  
260  
260  
260  
260  
260  
264  
268  
272  
276  
280  
284  
8/26  
XD9260/XD9261  
Series  
TEST CIRCUITS(*1)  
< Circuit No.① >  
< Circuit No.② >  
Wave Form Measure Point  
L
VIN  
A
VIN  
A
LX  
LX  
VOUT  
VOUT  
CE  
CE  
V
RL  
1μF  
CIN  
CL  
AGND  
PGND  
AGND  
PGND  
External Components  
External Components  
fOSC = 3.0MHz  
L : 1.0μH(LQM2MPN1R0MGH)  
fOSC = 1.2MHz  
L
: 4.7μH(LTF5022T-4R7N2R0-LC)  
CIN : 10μF(ceramic)  
CL : 10μF(ceramic)  
CIN : 10μF(ceramic)  
CL : 10μF(ceramic)  
< Circuit No.④ >  
< Circuit No.③ >  
Wave Form Measure Point  
VIN  
VIN  
LX  
LX  
Rpulldown  
200Ω  
VOUT  
VOUT  
CE  
V
ILX  
CE  
1μF  
1uF  
AGND  
PGND  
AGND  
PGND  
RLXH = (VIN-VLx)/ILX  
RLXL = VLx/ILX  
< Circuit No.⑤ >  
< Circuit No.⑥ >  
ILeakH  
A
Wave Form Measure Point  
VIN  
LX  
VIN  
LX  
1μF  
ICEH  
ILIMH  
ILeakL  
VOUT  
VOUT  
CE  
A
CE  
V
1μF  
AGND  
PGND  
AGND  
PGND  
ICEL  
< Circuit No.⑦ >  
B TYPE  
VIN  
LX  
1μF  
VOUT  
CE  
A
AGND  
PGND  
9/26  
XD9260/XD9261Series  
TYPICAL APPLICATION CIRCUIT  
Typical ExamplesfOSC=1.2MHz  
MANUFACTURER  
PRODUCT NUMBER  
LQH5BPN4R7NT0#  
LQH5BPZ4R7NT0#*3  
LTF5022T-4R7N2R0-LC  
XFL4020-472MEC  
VALUE  
murata  
murata  
TDK  
4.7μH  
4.7μH  
4.7μH  
4.7μH  
L
Coilcraft  
Typical ExamplesfOSC=3.0MHz  
MANUFACTURER  
PRODUCT NUMBER  
LQM2MPN1R0MGH#  
LQH2HPZ1R0NJR#*3  
VALUE  
murata  
murata  
1.0μH  
1.0μH  
1.0μH  
1.0μH  
L
TAIYO YUDEN  
MAKK2016T1R0M  
MLP2520K1R0M  
TDK  
Typical Examples(*1) fOSC=1.2MHz, fOSC=3.0MHz  
MANUFACTURER  
PRODUCT NUMBER  
VALUE  
murata  
murata  
GRM21BR71A106KE51#  
GCM21BR71A106KE22#*3  
10μF/10V  
10μF/10V  
CIN  
CL  
TAIYO YUDEN  
murata  
LMK212AB7106MG  
GRM21BR71A106KE51#  
GCM21BR71A106KE22#*3  
LMK212AB7106MG  
10μF/10V  
10μF/10V (*2)  
10μF/10V (*2)  
10μF/10V (*2)  
murata  
TAIYO YUDEN  
(*1) Select components appropriate to the usage conditions (ambient temperature, input & output voltage).  
(*2) CL=20μF or more if VIN - VOUT(T)<1.5  
(*3) The products for Automotive Electronic Equipment.  
The relationship between Output Voltage, Input Voltage, and CL value  
5.5  
5.2  
4.9  
4.6  
4.3  
4.0  
3.7  
3.4  
3.1  
2.8  
2.5  
External components  
CL = 10μF  
External components  
CL = 20μFꢀor more  
Output Voltage (V)  
10/26  
XD9260/XD9261  
Series  
OPERATIONAL EXPLANATION  
The XD9260/XD9261 series consists of a reference voltage source, error amplifier, comparator, phase compensation, minimum  
on time generation circuit, output voltage adjustment resistors, P-channel MOS driver transistor, N-channel MOS switching  
transistor for the synchronous switch, current limiter circuit, UVLO circuit, thermal shutdown circuit, short protection circuit,  
PWM/PFM selection circuit and others. (See the BLOCK DIAGRAM below.)  
BLOCK DIAGRAM XD9260/XD9261 Series Type B  
The method is HiSAT-COT (High Speed circuit Architecture for Transient with Constant On Time) control, which features on  
time control method and a fast transient response that also achieves low output voltage ripple.  
The on time (ton) is determined by the input voltage and output voltage, and turns on the Pch MOS driver Tr. for a fixed time.  
During the off time (toff), the voltage that is fed back through R1 and R2 is compared to the reference voltage by the error amp,  
and the error amp output is phase compensated and sent to the comparator. The comparator compares this signal to the  
reference voltage, and if the signal is lower than the reference voltage, sets the SR latch. On time then resumes. By doing this,  
PWM operation takes place with the off time controlled to the optimum duty ratio and the output voltage is stabilized. The phase  
compensation circuit optimizes the frequency characteristics of the error amp, and generates a ramp wave similar to the ripple  
voltage that occurs in the output to modulate the output signal of the error amp. This enables a stable feedback system to be  
obtained even when a low ESR capacitor such as a ceramic capacitor is used, and a fast transient response and stabilization of  
the output voltage are achieved.  
<Minimum on time generation circuit>  
Generates an on time that depends on the input voltage and output voltage (ton). The on time is set as given by the equations  
below.  
f
t
f
t
OSC1.2MHz type  
on (ns) = VOUT/VIN×833  
OSC3.0MHz type  
on (ns) = VOUT/VIN×333  
<Switching frequency>  
The switching frequency can be obtained from the on time (ton), which is determined by the input voltage and output voltage,  
and the PWM controlled off time (toff) as given by the equation below.  
fOSC (MHz) = VOUT(V) / (VIN(V)×ton(ns))  
<100% duty cycle mode>  
When the load current is heavy and the voltage difference between input voltage and output voltage is small, 100% duty cycle  
mode is activated and it keeps the Pch MOS driver Tr. keep on. 100% duty cycle mode attains a high output voltage stability and  
a high-speed response under all load conditions, from light to heavy, even in conditions where the dropout voltage is low.  
<Error amp>  
The error amp monitors the output voltage. The voltage divided by the internal R1 and R2 resistors is a feedback voltage for  
Error Amp. and compared to the reference voltage. The output voltage of the error amp becomes higher when the feedback  
voltage is higher than the reference voltage. The frequency characteristics of the error amp are optimized internally.  
11/26  
XD9260/XD9261Series  
OPERATIONAL EXPLANATION (Continued)  
<Reference voltage source, soft start function>  
The reference voltage forms a reference that is used to stabilize the output voltage of the IC.  
After “H” level is fed to CE pin, the reference voltage connected to the error amp increases linearly during the soft start interval.  
This allows the voltage divided by the internal R1 and R2 resistors and the reference voltage to be controlled in a balanced  
manner, and the output voltage rises in proportion to the rise in the reference voltage. This operation prevents rush input current  
and enables the output voltage to rise smoothly.  
If the output voltage does not reach the set output voltage within the soft start time, such as when the load is heavy or a large  
capacity output capacitor is connected, the balancing of the voltage divided by the internal resistors R1 and R2 and the  
reference voltage is lost, however, the current restriction function activates to prevent an excessive increase of input current,  
enabling a smooth rise of the output voltage.  
<PWM/PFM selection circuit>  
Regarding XD9260 which has PWM control method, it works with a continuous conduction mode, and operates at a stable  
switching frequency by means of an on time (ton) that is determined by the input voltage and output voltage regardless of the load.  
Regarding XD9261 which has PWM/PFM auto switching control method, it works with a discontinuous conduction mode at  
light loads, and lowers the switching frequency to reduce switching loss and improve efficiency.  
<CE function>  
Operation starts when “H” voltage is input into the CE pin. The IC can be put in the shutdown state by inputting “L” voltage into  
the CE pin. In the shutdown state, the supply current of the IC is 0μA (TYP.), and the Pch MOS driver Tr. and Nch MOS switch  
Tr. for synchronous rectification turn off. The CE pin is a CMOS input and the sink current is 0μA.  
<UVLO Circuit>  
When the VIN voltage becomes 2.00V (TYP.) or lower, the P-ch MOS driver transistor output driver transistor is forced OFF to  
prevent false pulse output caused by unstable operation of the internal circuitry. When the VIN pin voltage becomes 2.10V  
(TYP.) or higher, switching operation takes place. By releasing the UVLO function, the IC performs the soft start function to  
initiate output startup operation. The UVLO circuit does not cause a complete shutdown of the IC,but causes pulse output to be  
suspended; therefore, the internal circuitry remains in operation.  
<Thermal Shutdown>  
For protection against heat damage of the ICs, thermal shutdown function monitors chip temperature. The thermal shutdown  
circuit starts operating and the P-ch MOS driver and N-ch MOS driver transistor will be turned off when the chips temperature  
reaches 150. When the temperature drops to 120or less after shutting of the current flow, the IC performs the soft-start  
function to initiate output startup operation.  
<Short-circuit protection function>  
The B type short-circuit protection circuit protects the device that is connected to this product and to the input/output in  
situations such as when the output is accidentally shorted to GND. The short-circuit protection circuit monitors the output  
voltage, and when the output voltage falls below the short-circuit protection threshold voltage, it turns off the Pch MOS driver Tr  
and latches it. Once in the latched state, operation is resumed by turning off the IC from the CE pin and then restarting, or by  
re-input into the VIN pin.  
<CL High Speed Discharge>  
The B type can quickly discharge the electric charge at the output capacitor (CL) when a low signal to the CE pin which  
enables a whole IC circuit put into OFF state, is inputted via the N-ch MOS switch transistor located between the VOUT pin and  
the GND pin. When the IC is disabled, electric charge at the output capacitor (CL) is quickly discharged so that it may avoid  
application malfunction.  
Output Voltage Dischage characteristics  
RDCHG = 210 (TYP) C =10  
F
μ
Ω
L
τ
V=VOUT(T)×e – t /  
5.0  
4.5  
4.0  
3.5  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0.0  
t=τln (VOUT(T) / V)  
VOUT = 1.2V  
V: Output voltage after discharge  
VOUT(T): Output voltage  
t: Discharge time  
V
OUT = 1.8V  
OUT = 3.3V  
---  
V
τ: CL×RDCHG  
CL: Capacitance of Output capacitor  
R
DCHG: CL auto-discharge resistance,  
but it depends on supply voltage.  
0
2
4
6
8
10 12 14 16 18 20  
Discharge Time: t(ms)  
12/26  
XD9260/XD9261  
Series  
OPERATIONAL EXPLANATION (Continued)  
<Current Limit>  
The current limiter circuit of the XD9260/XD9261 series monitors the current flowing through the P-channel MOS driver transistor  
connected to the Lx pin. When the driver current is greater than a specific level, the current limit function operates to turn off the  
pulses from the Lx pin at any given timing. When the over current state is eliminated, the IC resumes its normal operation.  
NOTE ON USE  
1. For the phenomenon of temporal and transitional voltage decrease or voltage increase, the IC may be damaged or  
deteriorated if IC is used beyond the absolute MAX. specifications.  
2. Spike noise and ripple voltage arise in a switching regulator as with a DC/DC converter. These are greatly influenced by  
external component selection, such as the coil inductance, capacitance values, and board layout of external components.  
Once the design has been completed, verification with actual components should be done.  
3. The DC/DC converter characteristics depend greatly on the externally connected components as well as on the  
characteristics of this IC, so refer to the specifications and standard circuit examples of each component when carefully  
considering which components to select. Be especially careful of the capacitor characteristics and use B characteristics (JIS  
standard) or X7R, X5R (EIA standard) ceramic capacitors.  
4. Make sure that the PCB GND traces are as thick and wide as possible. The VSS pin or PGND pin and AGND pin fluctuation  
caused by high ground current at the time of switching may result in instability of the IC. Therefore, the GND traces close to  
the VSS pin, PGND pin and AGND pin are important.  
5. Mount external components as close as possible to the IC. Keep the wiring short and thick to lower the wiring impedance.  
6. A feature of HiSAT-COT control is that it controls the off time in order to control the duty, which varies due to the effects of  
power loss. In addition, changes in the on time due to 100% duty cycle mode are allowed. For this reason, caution must be  
exercised as the characteristics of the switching frequency will vary depending on the external component characteristics,  
board layout, input voltage, output voltage, load current and other parameters.  
7. Due to propagation delay inside the product, the on time generated by the minimum on time generation circuit is not the same  
as the on time that is the ratio of the input voltage to the output voltage.  
8. With regard to the current limiting value, the actual coil current may at times exceed the electrical characteristics due to  
propagation delay inside the product.  
9. The CE pin is a CMOS input pin. Do not use with the pin open. If connecting to the input or ground, use the resistor not more  
than 1Mor less. To prevent malfunctioning of the device connected to this product or the input/output due to short circuiting  
between pins, it is recommended that a resistor be connected.  
10. In the B type, if the output voltage drops below the short circuit protection threshold voltage at the end of the soft start  
interval, operation will stop.  
11. Regarding XD9261 which has PWM/PFM auto switching control method, it works with a discontinuous conduction mode at  
light loads, and in this case where the voltage difference between input voltage and output voltage is low or the coil  
inductance is higher than the value indicated in the standard circuit example, the coil current may reverse when the load is  
light, and thus pulse skipping will not be possible and light load efficiency will worsen.  
12. When the voltage difference between input voltage and output voltage is low, the load stability feature may deteriorate.  
13. Torex places an importance on improving our products and their reliability.We request that users incorporate fail-safe  
designs and post-aging protection treatment when using Torex products in their systems.  
13/26  
XD9260/XD9261Series  
NOTE ON USE (Continued)  
14. Instructions of pattern layouts  
The operation may become unstable due to noise and/or phase lag from the output current when the wire impedance is high,  
please place the input capacitor(CIN) and the output capacitor (CL) as close to the IC as possible.  
(1) In order to stabilize VIN voltage level, we recommend that a by-pass capacitor (CIN) be connected as close as possible to the  
VIN pin, PGND pin and AGND pin.  
(2) Please mount each external component as close to the IC as possible.  
(3) Wire external components as close to the IC as possible and use thick, short connecting traces to reduce the circuit  
impedance.  
(4) Make sure that the GND traces are as thick as possible, as variations in ground potential caused by high ground currents at  
the time of switching may result in instability of the IC.  
(5) This series’ internal driver transistors bring on heat because of the output current and ON resistance of P-channel and  
N-channel MOS driver transistors. Please consider the countermeasures against heat if necessary.  
USP-6C  
PCB mounted  
1st Layer  
2nd Layer  
XD9260/61 series PCB is the common substrate with the XC9260/61 series(non-AEC qualified products).  
14/26  
XD9260/XD9261  
Series  
TYPICAL PERFORMANCE CHARACTERISTICS  
(1) Efficiency vs. Output Current  
XD9260A10D / XD9261A10D  
XD9260A10C / XD9261A10C  
L = LQM2MPN1R0MGH(1.0μH)  
CIN = 10μF CL = 10μF  
L = LTF5022T-4R7N2R0-LC(4.7μH)  
CIN = 10μF CL = 10μF  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
100  
90  
80  
70  
60  
XD9261  
XD9260  
XD9261  
XD9260  
VIN = 5.0V  
VIN = 3.7V  
VIN = 5.0V  
VIN = 3.7V  
50  
40  
30  
20  
10  
0
VIN = 5.0V  
VIN = 3.7V  
VIN = 5.0V  
VIN = 3.7V  
0.1  
1
10  
100  
1000  
10000  
0.1  
1
10  
100  
1000  
10000  
Output Current: IOUT (mA)  
Output Current: IOUT (mA)  
XD9260A18D / XD9261A18D  
XD9260A18C / XD9261A18C  
L = LQM2MPN1R0MGH(1.0μH)  
CIN = 10μF CL = 10μF  
L = LTF5022T-4R7N2R0-LC(4.7μH)  
CIN = 10μF CL = 10μF  
100  
90  
100  
90  
80  
80  
XD9261  
XD9260  
70  
70  
VIN = 5.0V  
VIN = 3.7V  
XD9261  
XD9260  
60  
60  
50  
40  
30  
20  
10  
0
VIN = 5.0V  
VIN = 3.7V  
50  
40  
30  
20  
10  
0
VIN = 5.0V  
VIN = 3.7V  
VIN = 5.0V  
VIN = 3.7V  
0.1  
1
10  
100  
1000  
10000  
0.1  
1
10  
100  
1000  
10000  
Output Current: IOUT (mA)  
Output Current: IOUT (mA)  
XD9260A33D / XD9261A33D  
XD9260A33C / XD9261A33C  
L = LQM2MPN1R0MGH(1.0μH)  
CIN = 10μF CL = 10μF  
L = LTF5022T-4R7N2R0-LC(4.7μH)  
CIN = 10μF CL = 10μF  
100  
90  
100  
90  
80  
80  
XD9261  
XD9260  
XD9261  
XD9260  
70  
70  
VIN = 5.0V  
VIN = 5.0V  
60  
60  
50  
40  
30  
20  
10  
0
50  
40  
30  
20  
10  
0
0.1  
1
10  
100  
1000  
10000  
0.1  
1
10  
100  
1000  
10000  
Output Current: IOUT (mA)  
Output Current: IOUT (mA)  
15/26  
XD9260/XD9261Series  
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)  
(2) Output Voltage vs. Output Current  
XD9261A18D  
XD9261A33D  
L = LQM2MPN1R0MGH(1.0μH)  
CIN = 10μF CL = 10μF  
L = LQM2MPN1R0MGH(1.0μH)  
CIN = 10μF CL = 10μF  
3.60  
2.00  
3.50  
3.40  
3.30  
3.20  
3.10  
3.00  
1.90  
1.80  
1.70  
1.60  
VIN = 5.0V  
1000  
VIN = 3.7V  
1000  
0.1  
1
10  
100  
10000  
0.1  
1
10  
100  
10000  
Output Current: IOUT (mA)  
Output Current: IOUT (mA)  
(3) Ripple Voltage vs. Output Current  
XD9260A18D / XD9261A18D  
XD9260A33D / XD9261A33D  
L = LQM2MPN1R0MGH(1.0μH)  
CIN = 10μF CL = 10μF  
L = LQM2MPN1R0MGH(1.0μH)  
CIN = 10μF CL = 10μF  
100  
100  
90  
90  
XD9261  
XD9261  
XD9260  
80  
70  
60  
50  
40  
30  
20  
10  
0
80  
70  
60  
50  
40  
30  
20  
10  
0
XD9260  
VIN = 5.0V  
VIN = 3.7V  
0.1  
1
10  
Output Current: IOUT (mA)  
XD9260A18C / XD9261A18C  
100  
1000  
10000  
0.1  
1
10  
100  
1000  
10000  
Output Current: IOUT (mA)  
XD9260A33C / XD9261A33C  
L = LTF5022T-4R7N2R0-LC(4.7μH)  
CIN = 10μF CL = 10μF  
L = LTF5022T-4R7N2R0-LC(4.7μH)  
CIN = 10μF CL = 10μF  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
XD9261  
XD9260  
XD9261  
XD9260  
VIN = 3.7V  
VIN = 5.0V  
0.1  
1
10  
100  
1000  
10000  
0.1  
1
10  
100  
1000  
10000  
Output Current: IOUT (mA)  
Output Current: IOUT (mA)  
16/26  
XD9260/XD9261  
Series  
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)  
(4) FB Voltage vs. Ambient Temperature  
(5) UVLO Voltage vs. Ambient Temperature  
XD9261B18D  
XD9260A08D  
2.00  
1.95  
1.90  
1.85  
1.80  
1.75  
1.70  
1.65  
1.60  
3.0  
2.8  
2.6  
2.4  
2.2  
2.0  
1.8  
1.6  
1.4  
1.2  
1.0  
VIN = 3.7V  
-50  
-25  
0
25  
50  
75  
100  
125  
-50  
-25  
0
25  
50  
75  
100  
125  
125  
125  
Ambient Temperature: Ta (  
)
Ambient Temperature: Ta ()  
(6) Quiescent Current vs. Ambient Temperature  
XD9261A08D  
XD9261A08C  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
VIN = 5.0V, 3.7V, 2.7V  
VIN = 5.0V, 3.7V, 2.7V  
-50  
-25  
0
25  
50  
75  
100  
-50  
-25  
0
25  
50  
75  
100  
125  
Ambient Temperature: Ta (  
)
Ambient Temperature: Ta (  
)
XD9260A08D  
XD9260A08C  
1000  
900  
800  
700  
600  
500  
400  
300  
200  
100  
0
1000  
900  
800  
700  
600  
500  
400  
300  
200  
100  
0
VIN = 5.0V  
IN = 3.7V  
VIN = 2.7V  
V
VIN = 5.0V  
IN = 3.7V  
IN = 2.7V  
V
V
-50  
-25  
0
25  
50  
75  
100  
-50  
-25  
0
25  
50  
75  
100  
125  
Ambient Temperature: Ta ()  
Ambient Temperature: Ta ()  
17/26  
XD9260/XD9261Series  
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)  
(7) Stand-by Current vs. Ambient Temperature  
(8) Oscillation Frequency vs. Ambient Temperature  
XD9261A08D  
XD9260A08D  
L = LQM2MPN1R0MGH(1.0μH)  
CIN = 10μF CL = 10μF  
5.0  
4.0  
3.0  
2.0  
6.0  
5.5  
5.0  
4.5  
4.0  
3.5  
3.0  
2.5  
2.0  
1.5  
1.0  
VIN = 5.0V  
VIN = 5.0V  
VIN = 3.6V  
VIN = 3.0V  
1.0  
VIN = 3.7V, 2.7V  
0.0  
-50  
-25  
0
25  
50  
75  
100  
125  
0.0  
500.0  
1000.0  
1500.0  
2000.0  
Ambient Temperature: Ta ()  
Output Current: IOUT (mA)  
XD9260A18D  
XD9260A33D  
L = LQM2MPN1R0MGH(1.0μH)  
L = LQM2MPN1R0MGH(1.0μH)  
CIN = 10μF CL = 10μF  
CIN = 10μF CL = 10μF  
6.0  
5.5  
5.0  
4.5  
6.0  
5.5  
5.0  
4.5  
VIN = 5.0V, 5.5V  
VIN = 5.0V, 3.6V  
4.0  
3.5  
3.0  
2.5  
2.0  
1.5  
1.0  
4.0  
3.5  
3.0  
2.5  
2.0  
1.5  
1.0  
VIN = 4.2V  
VIN = 3.0V  
1500.0  
0.0  
500.0  
1000.0  
1500.0  
2000.0  
0.0  
500.0  
1000.0  
2000.0  
Output Current: IOUT (mA)  
Output Current: IOUT (mA)  
XD9260A08C  
XD9260A18C  
L = LTF5022T-4R7N2R0-LC(4.7μH)  
CIN = 10μF CL = 10μF  
L = LTF5022T-4R7N2R0-LC(4.7μH)  
CIN = 10μF CL = 10μF  
3.0  
3.0  
VIN = 5.0V  
2.5  
2.5  
V
IN = 3.6V  
VIN = 3.0V  
VIN = 5.0V, 3.6V  
2.0  
2.0  
1.5  
1.0  
0.5  
0.0  
1.5  
1.0  
0.5  
0.0  
VIN = 3.0V  
1500.0  
0.0  
500.0  
1000.0  
1500.0  
2000.0  
0.0  
500.0  
1000.0  
2000.0  
Output Current: IOUT (mA)  
Output Current: IOUT (mA)  
18/26  
XD9260/XD9261  
Series  
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)  
(8) Oscillation Frequency vs. Ambient Temperature (Continued)  
(9) Pch Driver ON Resistance vs. Ambient Temperature  
XD9260A33C  
XD9260A08D  
L = LTF5022T-4R7N2R0-LC(4.7μH)  
CIN = 10μF CL = 10μF  
300  
250  
200  
150  
100  
50  
3.0  
2.5  
2.0  
VIN = 5.0V, 5.5V  
1.5  
1.0  
VIN = 5.0V  
VIN = 3.7V  
VIN = 2.7V  
VIN = 4.2V  
0.5  
0
0.0  
-50  
-25  
0
25  
50  
75  
100  
125  
0.0  
500.0  
1000.0  
1500.0  
2000.0  
Ambient Temperature: Ta ()  
Output Current: IOUT (mA)  
.(10) Nch Driver ON Resistance vs. Ambient Temperature  
XD9260A08D  
(11) LxSW ”H” Leakage Current vs. Ambient Temperature  
XD9260A08D  
300  
10.0  
9.0  
8.0  
7.0  
6.0  
5.0  
4.0  
3.0  
VIN = 5.0V  
VIN = 3.7V  
250  
200  
150  
100  
50  
V
IN = 2.7V  
VIN = 5.5V  
2.0  
1.0  
0.0  
0
-50  
-25  
0
25  
50  
75  
100  
125  
-50  
-25  
0
25  
50  
75  
100  
125  
Ambient Temperature: Ta ()  
Ambient Temperature : Ta ()  
(12) LxSW ”L” Leakage Current vs. Ambient Temperature  
XD9260A08D  
(13) CE ”H” Voltage vs. Ambient Temperature  
XD9261A08D  
10.0  
9.0  
8.0  
7.0  
6.0  
5.0  
4.0  
1.4  
1.2  
1.0  
0.8  
0.6  
VIN = 5.5V  
VIN = 5.0V  
0.4  
3.0  
2.0  
1.0  
0.0  
VIN = 3.7V  
V
IN = 2.7V  
0.2  
0.0  
-50  
-25  
0
25  
50  
75  
100  
125  
-50  
-25  
0
25  
50  
75  
100  
125  
Ambient Temperature : Ta ()  
Ambient Temperature: Ta ()  
19/26  
XD9260/XD9261Series  
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)  
(14) CE”L” Voltage vs. Ambient Temperature  
(15) Soft-Start Time vs. Ambient Temperature  
XD9261A08D  
XD9261B08D  
1.4  
1.2  
1.0  
0.8  
0.6  
0.4  
0.2  
0.0  
500  
450  
400  
VIN = 5.0V  
350  
300  
250  
200  
150  
100  
50  
VIN = 5.0V  
IN = 3.7V  
VIN = 2.7V  
V
0
-50  
-25  
0
25  
50  
75  
100  
125  
-50  
-25  
0
25  
50  
75  
100  
125  
Ambient Temperature: Ta ()  
Ambient Temperature: Ta ()  
(16) Current Limit vs. Ambient Temperature  
XD9261A08D  
(17) CL Discharge Resistance vs. Ambient Temperature  
XD9261B08D  
4000  
3800  
3600  
3400  
3200  
3000  
2800  
2600  
300  
250  
VIN = 5.0V  
200  
150  
100  
50  
VIN = 5.0V  
IN = 3.7V  
V
2400  
2200  
2000  
V
IN = 2.7V  
0
-50  
-25  
0
25  
50  
75  
100  
125  
-50  
-25  
0
25  
50  
75  
100  
125  
Ambient Temperature : Ta ()  
Ambient Temperature: Ta ()  
(18) Short Protection Threshold vs. Ambient Temperature  
XD9261B08D  
500  
400  
300  
200  
100  
0
VIN = 5.0V, 3.7V, 2.7V  
-50  
-25  
0
25  
50  
75  
100  
125  
Ambient Temperature: Ta ()  
20/26  
XD9260/XD9261  
Series  
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)  
(19) Load Transient Response  
XD9260A12D  
XD9261A12D  
L = LQM2MPN1R0MGH(1.0μH) CIN = 10μF CL = 10μF  
VIN = 5.0V VOUT = 1.2VfOSC = 3.0MHzIOUT = 10mA1.0A  
VIN = 5.0V VOUT = 1.2V fOSC = 3.0MHz IOUT = 10mA1.0A  
L = LQM2MPN1R0MGH(1.0μH) CIN = 10μF CL = 10μF  
IOUT : 1.0A  
IOUT : 1.0A  
I
OUT : 10mA  
IOUT : 10mA  
VOUT : 50mV/div  
VOUT : 50mV/div  
50μs/div  
50μs/div  
XD9260A18D  
XD9261A18D  
VIN = 5.0V VOUT = 1.8VfOSC = 3.0MHz IOUT = 10mA1.0A  
VIN = 5.0V VOUT = 1.8VfOSC = 3.0MHz IOUT = 10mA1.0A  
L = LQM2MPN1R0MGH(1.0μH)  
CIN = 10μF CL = 10μF  
L = LQM2MPN1R0MGH(1.0μH) CIN = 10μF CL = 10μF  
IOUT : 1.0A  
IOUT : 1.0A  
I
OUT : 10mA  
IOUT : 10mA  
VOUT : 50mV/div  
VOUT : 50mV/div  
50μs/div  
50μs/div  
XD9260A33D  
XD9261A33D  
VIN = 5.0V VOUT =3.3V fOSC = 3.0MHz IOUT = 10mA1.0A  
VIN = 5.0V VOUT =3.3V fOSC = 3.0MHz IOUT = 10mA1.0A  
L = LQM2MPN1R0MGH(1.0μH) CIN = 10μF CL = 10μF  
L = LQM2MPN1R0MGH(1.0μH) CIN = 10μF CL = 10μF  
I
OUT : 1.0A  
IOUT : 1.0A  
I
OUT : 10mA  
I
OUT : 10mA  
VOUT : 50mV/div  
VOUT : 50mV/div  
50μs/div  
50μs/div  
21/26  
XD9260/XD9261Series  
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)  
(19) Load Transient Response  
XD9260A12C  
XD9261A12C  
VIN =5.0V VOUT 1.2V fOSC = 1.2MHz IOUT = 10mA1.0A  
V
= 5.0V VOUT1.2V f  
= 1.2MHz IOUT = 10mA1.0A  
INOSC
L=LTF5022T-4R7N2R0-LC(4.7μH) CIN = 10μF CL = 10μF  
L=LTF5022T-4R7N2R0-LC(4.7μH) CIN = 10μF CL = 10μF  
IOUT : 1.0A  
IOUT : 1.0A  
I
OUT : 10mA  
IOUT : 10mA  
VOUT : 100mV/div  
VOUT : 100mV/div  
50μs/div  
50μs/div  
XD9260A18C  
XD9261A18C  
VIN = 5.0V VOUT 1.8V fOSC = 1.2MHz IOUT = 10mA1.0A  
VIN = 5.0V VOUT 1.8V fOSC = 1.2MHz IOUT = 10mA1.0A  
L=LTF5022T-4R7N2R0-LC(4.7μH) CIN = 10μF CL = 10μF  
L=LTF5022T-4R7N2R0-LC(4.7μH) CIN = 10μF CL = 10μF  
IOUT : 1.0A  
IOUT : 1.0A  
I
OUT : 10mA  
IOUT : 10mA  
VOUT : 100mV/div  
VOUT : 100mV/div  
50μs/div  
50μs/div  
XD9260A33C  
XD9261A33C  
VIN =5.0V VOUT = 3.3V fOSC = 1.2MHz IOUT = 10mA1.0A  
VIN = 5.0V VOUT = 3.3V fOSC = 1.2MHz IOUT = 10mA1.0A  
L=LTF5022T-4R7N2R0-LC(4.7μH) CIN = 10μF CL = 10μF  
L=LTF5022T-4R7N2R0-LC(4.7μH) CIN = 10μF CL = 10μF  
IOUT : 1.0A  
IOUT : 1.0A  
I
OUT : 10mA  
I
OUT : 10mA  
VOUT : 200mV/div  
VOUT : 200mV/div  
50μs/div  
50μs/div  
22/26  
XD9260/XD9261  
Series  
PACKAGING INFORMATION  
USP-6C (unit:mm)  
1.8±0.05  
1pin INDENT  
0.05  
0.30±0.05  
(0.1)  
(0.50)  
0.20±0.05  
0.10±0.05  
1.4±0.05  
USP-6C Reference Pattern Layout (unit: mm)  
USP-6C Reference Metal Mask Design (unit: mm)  
23/26  
XD9260/XD9261Series  
PACKAGING INFORMATION (Continued)  
USP-6C Power Dissipation  
Power dissipation data for the USP-6C is shown in this page.  
The value of power dissipation varies with the mount board conditions.  
Please use this data as the reference data taken in the following condition.  
1. Measurement Condition  
Condition: Mount on a board  
Ambient: Natural convection  
Soldering: Lead (Pb) free  
Board: Dimensions 40 x 40 mm (1600 mm2 in one side)  
Copper (Cu) traces occupy 50% of the board area  
In top and back faces  
Package heat-sink is tied to the copper traces  
Material: Glass Epoxy (FR-4)  
Thickness: 1.6mm  
Through-hole 4 x 0.8 Diameter  
Evaluatn Board (Un: mm)  
2. Power Dissipation vs. Ambient Temperature (105)  
Board Mount (Tjmax=125)  
Ambient Temperature ()  
Power Dissipation Pd (mW)  
Thermal Resistance (/W)  
25  
1000  
200  
100.00  
105  
Pd vs. Ta  
1200  
1000  
800  
600  
400  
200  
0
25  
45  
65  
85  
105  
125  
Ambient Temperature: Ta ()  
24/26  
XD9260/XD9261  
Series  
MARKING RULE  
XD9260  
represents product series  
USP-6C(Under dot)  
MARK  
PRODUCT SERIES  
1
2
XD9260A*****-Q  
XD9260B*****-Q  
XD9261A*****-Q  
XD9261B*****-Q  
1
2
3
6
H
K
5
4
represents integer and oscillation frequency of the output voltage  
MARK  
XD9261  
XD9261 Series  
VOUT(V)  
XD9260 Series  
fosc=1.2MHz  
fosc=3.0MHz  
fosc=1.2MHz  
fosc=3.0MHz  
USP-6C
E
F
N
P
R
T
U
V
X
Y
0.X  
1.X  
2.X  
3.X  
A
B
C
D
L
1
2
3
6
M
5
4
represents decimal number of the output voltage  
VOUT(V)  
X.0  
MARK  
PRODUCT SERIES  
XD9260/61**0***-Q  
XD9260/61**A***-Q  
XD9260/61**1***-Q  
XD9260/61**B***-Q  
XD9260/61**2***-Q  
XD9260/61**C***-Q  
XD9260/61**3***-Q  
XD9260/61**D***-Q  
XD9260/61**4***-Q  
XD9260/61**E***-Q  
XD9260/61**5***-Q  
XD9260/61**F***-Q  
XD9260/61**6***-Q  
XD9260/61**H***-Q  
XD9260/61**7***-Q  
XD9260/61**K***-Q  
XD9260/61**8***-Q  
XD9260/61**L***-Q  
XD9260/61**9***-Q  
XD9260/61**M***-Q  
0
A
1
X.05  
X.1  
X.15  
X.2  
B
2
X.25  
X.3  
C
3
X.35  
X.4  
D
4
X.45  
X.5  
E
5
X.55  
X.6  
F
6
X.65  
X.7  
H
7
X.75  
X.8  
K
8
X.85  
X.8  
L
9
X.95  
M
,represents production lot number  
01090A0Z119ZA1A9AAAZB1ZZ in order  
(G, I, J, O, Q, W excluded)  
*No Character inversion used.  
25/26  
XD9260/XD9261Series  
1. The product and product specifications contained herein are subject to change without notice to  
improve performance characteristics. Consult us, or our representatives before use, to confirm that  
the information in this datasheet is up to date.  
2. The information in this datasheet is intended to illustrate the operation and characteristics of our  
products. We neither make warranties or representations with respect to the accuracy or  
completeness of the information contained in this datasheet nor grant any license to any intellectual  
property rights of ours or any third party concerning with the information in this datasheet.  
3. Applicable export control laws and regulations should be complied and the procedures required by  
such laws and regulations should also be followed, when the product or any information contained in  
this datasheet is exported.  
4. The product is neither intended nor warranted for use in equipment of systems which require  
extremely high levels of quality and/or reliability and/or a malfunction or failure which may cause loss  
of human life, bodily injury, serious property damage including but not limited to devices or equipment  
used in 1) nuclear facilities, 2) aerospace industry, 3) medical facilities, 4) automobile industry and  
other transportation industry and 5) safety devices and safety equipment to control combustions and  
explosions. Do not use the product for the above use unless agreed by us in writing in advance.  
5. Although we make continuous efforts to improve the quality and reliability of our products;  
nevertheless Semiconductors are likely to fail with a certain probability. So in order to prevent  
personal injury and/or property damage resulting from such failure, customers are required to  
incorporate adequate safety measures in their designs, such as system fail safes, redundancy and  
fire prevention features.  
6. Our products are not designed to be Radiation-resistant.  
7. Please use the product listed in this datasheet within the specified ranges.  
8. We assume no responsibility for damage or loss due to abnormal use.  
9. All rights reserved. No part of this datasheet may be copied or reproduced unless agreed by Torex  
Semiconductor Ltd in writing in advance.  
TOREX SEMICONDUCTOR LTD.  
26/26  
配单直通车
XD9260A3FDER-Q产品参数
型号:XD9260A3FDER-Q
是否Rohs认证:符合
生命周期:Active
IHS 制造商:TOREX SEMICONDUCTOR LTD
包装说明:,
Reach Compliance Code:compliant
ECCN代码:EAR99
HTS代码:8542.39.00.01
风险等级:5.64
Is Samacsys:N
模拟集成电路 - 其他类型:SWITCHING REGULATOR
峰值回流温度(摄氏度):NOT SPECIFIED
处于峰值回流温度下的最长时间:NOT SPECIFIED
Base Number Matches:1
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