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产品型号NCV1117ST33T3的Datasheet PDF文件预览

NCP1117, NCV1117  
1.0 A Low−Dropout Positive  
Fixed and Adjustable  
Voltage Regulators  
The NCP1117 series are low dropout positive voltage regulators that  
are capable of providing an output current that is in excess of 1.0 A  
with a maximum dropout voltage of 1.2 V at 800 mA over  
temperature. This series contains nine fixed output voltages of 1.5 V,  
1.8 V, 1.9 V, 2.0 V, 2.5 V, 2.85 V, 3.3 V, 5.0 V, and 12 V that have no  
minimum load requirement to maintain regulation. Also included is an  
adjustable output version that can be programmed from 1.25 V to  
18.8 V with two external resistors. On chip trimming adjusts the  
reference/output voltage to within 1.0% accuracy. Internal protection  
features consist of output current limiting, safe operating area  
compensation, and thermal shutdown. The NCP1117 series can  
operate with up to 20 V input. Devices are available in SOT−223 and  
DPAK packages.  
http://onsemi.com  
Tab  
SOT−223  
ST SUFFIX  
CASE 318H  
1
1 2 3  
3
(Top View)  
Pin: 1. Adjust/Ground  
2. Output  
3. Input  
Heatsink tab is connected to Pin 2.  
Tab  
Features  
Output Current in Excess of 1.0 A  
1.2 V Maximum Dropout Voltage at 800 mA Over Temperature  
DPAK  
DT SUFFIX  
CASE 369C  
1
2
Fixed Output Voltages of 1.5 V, 1.8 V, 1.9 V, 2.0 V, 2.5 V, 2.85 V,  
3
1
3
3.3 V, 5.0 V, and 12 V  
(Top View)  
Adjustable Output Voltage Option  
No Minimum Load Requirement for Fixed Voltage Output Devices  
ORDERING INFORMATION  
See detailed ordering and shipping information in the package  
dimensions section on pages 11 and 12 of this data sheet.  
Reference/Output Voltage Trimmed to 1.0%  
Current Limit, Safe Operating and Thermal Shutdown Protection  
Operation to 20 V Input  
DEVICE MARKING INFORMATION  
See general marking information in the device marking  
section on page 14 of this data sheet.  
NCV Prefix for Automotive and Other Applications Requiring Site  
and Control Changes  
Pb−Free Packages are Available  
Applications  
Consumer and Industrial Equipment Point of Regulation  
Active SCSI Termination for 2.85 V Version  
Switching Power Supply Post Regulation  
Hard Drive Controllers  
Battery Chargers  
TYPICAL APPLICATIONS  
110 W  
110 W  
110 W  
3
2
NCP1117  
XT285  
Input  
Output  
2
3
NCP1117  
XTA  
18 to 27  
Lines  
+
+
22  
mF  
10  
mF  
Input  
Output  
+
+
10  
mF  
10  
3
NCP1117  
XTXX  
2
1
1
mF  
+
+
10  
mF  
10  
mF  
4.75 V  
to  
+
1
110 W  
5.25 V  
Figure 1. Fixed  
Output Regulator  
Figure 2. Adjustable  
Output Regulator  
Figure 3. Active SCSI Bus Terminator  
© Semiconductor Components Industries, LLC, 2007  
1
Publication Order Number:  
January, 2007 − Rev. 17  
NCP1117/D  
NCP1117, NCV1117  
MAXIMUM RATINGS  
Rating  
Symbol  
Value  
20  
Unit  
V
Input Voltage (Note 1)  
V
in  
Output Short Circuit Duration (Notes 2 and 3)  
Infinite  
Power Dissipation and Thermal Characteristics  
Case 318H (SOT−223)  
Power Dissipation (Note 2)  
P
D
Internally Limited  
W
Thermal Resistance, Junction−to−Ambient, Minimum Size Pad  
Thermal Resistance, Junction−to−Case  
Case 369A (DPAK)  
R
160  
15  
°C/W  
°C/W  
q
JA  
JC  
R
q
Power Dissipation (Note 2)  
Internally Limited  
W
P
D
Thermal Resistance, Junction−to−Ambient, Minimum Size Pad  
Thermal Resistance, Junction−to−Case  
67  
°C/W  
°C/W  
R
q
JA  
JC  
6.0  
R
q
Maximum Die Junction Temperature Range  
Storage Temperature Range  
TJ  
−55 to 150  
−65 to 150  
°C  
°C  
°C  
Tstg  
Operating Ambient Temperature Range  
T
A
NCP1117  
NCV1117  
0 to +125  
−40 to +125  
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the  
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect  
device reliability.  
1. This device series contains ESD protection and exceeds the following tests:  
Human Body Model 2000 V per MIL−STD−883, Method 3015.  
Machine Model Method 200 V.  
2. Internal thermal shutdown protection limits the die temperature to approximately 175°C. Proper heatsinking is required to prevent activation.  
The maximum package power dissipation is:  
T
* T  
J(max)  
A
P
D
+
R
in  
qJA  
3. The regulator output current must not exceed 1.0 A with V greater than 12 V.  
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2
 
NCP1117, NCV1117  
ELECTRICAL CHARACTERISTICS (C = 10 mF, C = 10 mF, for typical value T = 25°C, for min and max values T is the  
in  
out  
A
A
operating ambient temperature range that applies unless otherwise noted. (Note 4)  
Characteristic  
Symbol  
Min  
Typ  
Max  
Unit  
Reference Voltage, Adjustable Output Devices  
Vref  
V
(V –V = 2.0 V, I = 10 mA, T = 25°C)  
(V –V = 1.4 V to 10 V, Iout = 10 mA to 800 mA) (Note 4)  
in out  
1.238  
1.225  
1.25  
1.262  
1.270  
in out  
out  
A
Output Voltage, Fixed Output Devices  
Vout  
V
1.5 V  
(V = 3.5 V, Iout = 10 mA, TA = 25 °C)  
(V = 2.9 V to 11.5 V, Iout = 0 mA to 800 mA) (Note 4)  
in  
1.485  
1.470  
1.500  
1.515  
1.530  
in  
1.8 V  
1.9 V  
2.0 V  
2.5 V  
2.85 V  
(V = 3.8 V, Iout = 10 mA, TA = 25 °C)  
(V = 3.2 V to 11.8 V, Iout = 0 mA to 800 mA) (Note 4)  
in  
1.782  
1.755  
1.800  
1.818  
1.845  
in  
(V = 3.9 V, Iout = 10 mA, TA = 25 °C)  
1.872  
1.862  
1.900  
1.900  
1.929  
1.938  
in  
(V = 3.3 V to 11.9 V, Iout = 0 mA to 800 mA) (Note 4)  
in  
(V = 4.0 V, Iout = 10 mA, TA = 25 °C)  
1.970  
1.960  
2.000  
2.030  
2.040  
in  
(V = 3.4 V to 12 V, Iout = 0 mA to 800 mA) (Note 4)  
in  
(V = 4.5 V, Iout = 10 mA, TA = 25 °C)  
2.475  
2.450  
2.500  
2.525  
2.550  
in  
(V = 3.9 V to 10 V, Iout = 0 mA to 800 mA,) (Note 4)  
in  
(V = 4.85 V, Iout = 10 mA, TA = 25 °C)  
in  
2.821  
2.790  
2.790  
2.850  
2.879  
2.910  
2.910  
(V = 4.25 V to 10 V, Iout = 0 mA to 800 mA) (Note 4)  
in  
(V = 4.0 V, Iout = 0 mA to 500 mA) (Note 5)  
in  
3.3 V  
5.0 V  
12 V  
(V = 5.3 V, Iout = 10 mA, TA = 25 °C)  
(V = 4.75 V to 10 V, Iout = 0 mA to 800 mA) (Note 4)  
in  
in  
3.267  
3.235  
3.300  
3.333  
3.365  
(V = 7.0 V, Iout = 10 mA, TA = 25 °C)  
in  
4.950  
4.900  
5.000  
5.050  
5.100  
(V = 6.5 V to 12 V, Iout = 0 mA to 800 mA) (Note 4)  
in  
(V = 14 V, Iout = 10 mA, TA = 25 °C)  
in  
11.880 12.000 12.120  
(V = 13.5 V to 20 V, Iout = 0 mA to 800 mA) (Note 4)  
in  
11.760  
12.240  
Line Regulation (Note 5)  
Adjustable (V = 2.75 V to 16.25 V, Iout = 10 mA)  
Regline  
0.04  
0.1  
%
in  
1.5 V  
1.8 V  
1.9 V  
2.0 V  
2.5 V  
2.85 V  
3.3 V  
5.0 V  
12 V  
(V = 2.9 V to 11.5 V, Iout = 0 mA)  
0.3  
0.4  
0.5  
0.5  
0.5  
0.8  
0.8  
0.9  
1.0  
1.0  
1.0  
2.5  
2.5  
2.5  
3.0  
4.5  
6.0  
7.5  
mV  
in  
(V = 3.2 V to 11.8 V, Iout = 0 mA)  
in  
(V = 3.3 V to 11.9 V, Iout = 0 mA)  
in  
(V = 3.4 V to 12 V, Iout = 0 mA)  
in  
(V = 3.9 V to 10 V, Iout = 0 mA)  
in  
(V = 4.25 V to 10 V, Iout = 0 mA)  
in  
(V = 4.75 V to 15 V, Iout = 0 mA)  
in  
(V = 6.5 V to 15 V, Iout = 0 mA)  
in  
(V = 13.5 V to 20 V, Iout = 0 mA)  
in  
Load Regulation (Note 5)  
Adjustable (Iout = 10 mA to 800 mA, V = 4.25 V)  
Regline  
0.2  
0.4  
%
in  
1.5 V  
1.8 V  
1.9 V  
2.0 V  
2.5 V  
2.85 V  
3.3 V  
5.0 V  
12 V  
(Iout = 0 mA to 800 mA, V = 2.9 V)  
2.3  
2.6  
2.7  
3.0  
3.3  
3.8  
4.3  
6.7  
16  
5.5  
6.0  
6.0  
6.0  
7.5  
8.0  
10  
mV  
in  
(Iout = 0 mA to 800 mA, V = 3.2 V)  
in  
(Iout = 0 mA to 800 mA, V = 3.3 V)  
in  
(Iout = 0 mA to 800 mA, V = 3.4 V)  
in  
(Iout = 0 mA to 800 mA, V = 3.9 V)  
in  
(Iout = 0 mA to 800 mA, V = 4.25 V)  
in  
(Iout = 0 mA to 800 mA, V = 4.75 V)  
in  
(Iout = 0 mA to 800 mA, V = 6.5 V)  
15  
in  
(Iout = 0 mA to 800 mA, V = 13.5 V)  
28  
in  
4. The regulator output current must not exceed 1.0 A with V greater than 12 V.  
in  
5. Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.  
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3
 
NCP1117, NCV1117  
ELECTRICAL CHARACTERISTICS (C = 10 mF, C = 10 mF, for typical value T = 25°C, for min and max values T is the  
in  
out  
A
A
operating ambient temperature range that applies unless otherwise noted. (Note 6)  
Characteristic  
Symbol  
Min  
Typ  
Max  
Unit  
Dropout Voltage (Measured at Vout − 100 mV)  
(Iout = 100 mA)  
Vin−Vout  
V
0.95  
1.01  
1.07  
1.10  
1.15  
1.20  
(Iout = 500 mA)  
(Iout = 800 mA)  
Output Current Limit (V −V = 5.0 V, T = 25°C, Note 6)  
Iout  
1000  
1500  
0.8  
2200  
5.0  
mA  
mA  
in out  
A
Minimum Required Load Current for Regulation, Adjustable Output Devices  
(V = 15 V)  
I
L(min)  
in  
Quiescent Current  
IQ  
mA  
1.5 V  
1.8 V  
1.9 V  
2.0 V  
2.5 V  
2.85 V  
3.3 V  
5.0 V  
12 V  
(V = 11.5 V)  
3.6  
4.2  
4.3  
4.5  
5.2  
5.5  
6.0  
6.0  
6.0  
10  
10  
10  
10  
10  
10  
10  
10  
10  
in  
(V = 11.8 V)  
in  
(V = 11.9 V)  
in  
(V = 12 V)  
in  
(V = 10 V)  
in  
(V = 10 V)  
in  
(V = 15 V)  
in  
(V = 15 V)  
in  
(V = 20 V)  
in  
Thermal Regulation (T = 25°C, 30 ms Pulse)  
0.01  
0.1  
%/W  
dB  
A
Ripple Rejection (V −V = 6.4 V, I = 500 mA, 10 V 120 Hz Sinewave)  
RR  
in out  
out  
pp  
Adjustable  
67  
66  
66  
66  
64  
62  
62  
60  
57  
50  
73  
72  
70  
72  
70  
68  
68  
64  
61  
54  
1.5 V  
1.8 V  
1.9 V  
2.0 V  
2.5 V  
2.85 V  
3.3 V  
5.0 V  
12 V  
Adjustment Pin Current (V = 11.25 V, Iout = 800 mA)  
Iadj  
52  
120  
5.0  
mA  
mA  
in  
Adjust Pin Current Change  
DIadj  
0.4  
(V −V = 1.4 V to 10 V, Iout = 10 mA to 800 mA)  
in out  
Temperature Stability  
ST  
St  
N
0.5  
0.3  
%
%
Long Term Stability (T = 25°C, 1000 Hrs End Point Measurement)  
A
RMS Output Noise (f = 10 Hz to 10 kHz)  
0.003  
%Vout  
6. NCP1117: T = 0°C ,  
T
= 125°C  
= 125°C  
low  
high  
high  
NCV1117: T = −40°C, T  
low  
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NCP1117, NCV1117  
2.0  
1.5  
1.4  
V
I
= V + 3.0 V  
= 10 mA  
T = 25°C  
J
Adj, 1.5 V,  
1.8 V, 2.0 V,  
2.5 V  
in  
out  
1.2  
1.0  
out  
T = −40°C  
J
1.0  
0.5  
0.8  
0.6  
0.4  
0.2  
0
T = 125°C  
J
0
−0.5  
−1.0  
−1.5  
−2.0  
2.85 V, 3.3 V,  
5.0 V, 12.0 V  
Load pulsed at 1.0% duty cycle  
150  
−50  
−25  
0
25  
50  
75  
100  
125  
0
200  
400  
600  
800  
1000  
I
, OUTPUT CURRENT (mA)  
T , AMBIENT TEMPERATURE (°C)  
A
out  
Figure 4. Output Voltage Change  
vs. Temperature  
Figure 5. Dropout Voltage  
vs. Output Current  
2.0  
1.8  
1.6  
1.4  
1.2  
1.0  
2.0  
1.5  
1.0  
0.5  
T = 25°C  
J
V
= 5.0 V  
in  
Load pulsed at 1.0% duty cycle  
Load pulsed at 1.0% duty cycle  
0
0
2
4
6
8
10 12 14  
16 18 20  
−50  
−25  
0
25  
50  
75  
100  
125  
150  
V
in  
− V , VOLTAGE DIFFERENTIAL (V)  
T , AMBIENT TEMPERATURE (°C)  
A
out  
Figure 6. Output Short Circuit Current  
vs. Differential Voltage  
Figure 7. Output Short Circuit Current  
vs. Temperature  
100  
80  
60  
40  
20  
0
10  
5.0  
0
−5.0  
−10  
−15  
−20  
I
= 10 mA  
out  
−50  
−25  
0
25  
50  
75  
100  
125  
150  
−50  
−25  
0
25  
50  
75  
100  
125  
150  
T , AMBIENT TEMPERATURE (°C)  
A
T , AMBIENT TEMPERATURE (°C)  
A
Figure 8. Adjust Pin Current  
vs. Temperature  
Figure 9. Quiescent Current Change  
vs. Temperature  
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5
NCP1117, NCV1117  
100  
80  
100  
V
v 3.0 V  
V
v 0.5 V  
ripple  
P−P  
ripple P−P  
f
V
= 120 Hz  
ripple  
V
− V w 3.0 V  
out  
v 3.0 V  
in  
ripple  
P−P  
80  
60  
40  
20  
0
60  
f
= 20 kHz  
ripple  
V
V
I
= 5.0 V  
out  
V
v 0.5 V  
ripple  
P−P  
− V = 3.0 V  
in  
out  
= 0.5 A  
= 10 mF  
V
− V w V  
out dropout  
in  
40  
out  
V
= 5.0 V  
− V = 3.0 V  
out  
= 10 mF  
= 25 mF  
out  
C
out  
adj  
adj  
V
in  
C
= 25 mF, f > 60 Hz  
C
C
out  
adj  
20  
0
C
= 200 mF, f v 60 Hz  
T = 25°C  
A
T = 25°C  
A
0
200  
400  
600  
800  
1000  
10  
100  
1.0 k  
10 k  
100 k  
I
, OUTPUT CURRENT (mA)  
f
ripple  
, RIPPLE FREQUENCY (Hz)  
out  
Figure 10. NCP1117XTA Ripple Rejection  
vs. Output Current  
Figure 11. NCP1117XTA Ripple Rejection  
vs. Frequency  
C
C
= 1.0 mF  
in  
0.1  
0
= 10 mF  
out  
I
= 0.1 A  
out  
5.25  
4.25  
T = 25°C  
A
C
C
= 10 mF  
−0.1  
in  
= 10 mF  
out  
V
in  
= 4.5 V  
Preload = 0.1 A  
T = 25°C  
A
20  
0
0.5  
0
−20  
0
40  
80  
120  
160  
200  
0
40  
80  
120  
160  
200  
t, TIME (ms)  
t, TIME (ms)  
Figure 12. NCP1117XT285  
Line Transient Response  
Figure 13. NCP1117XT285  
Load Transient Response  
C
C
= 1.0 mF  
in  
0.1  
0
= 10 mF  
out  
I
= 0.1 A  
out  
7.5  
6.5  
T = 25°C  
A
C
C
= 10 mF  
in  
−0.1  
= 10 mF  
out  
V
in  
= 6.5 V  
Preload = 0.1 A  
T = 25°C  
A
20  
0.5  
0
0
−20  
0
40  
80  
120  
160  
200  
0
40  
80  
120  
160  
200  
t, TIME (ms)  
t, TIME (ms)  
Figure 14. NCP1117XT50  
Line Transient Response  
Figure 15. NCP1117XT50  
Load Transient Response  
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NCP1117, NCV1117  
C
C
= 1.0 mF  
in  
0.1  
= 10 mF  
out  
I
= 0.1 A  
out  
0
14.5  
13.5  
T = 25°C  
A
C
C
= 10 mF  
−0.1  
in  
= 10 mF  
out  
V
in  
= 13.5 V  
Preload = 0.1 A  
T = 25°C  
A
20  
0
0.5  
0
−20  
0
40  
80  
120  
160  
200  
0
40  
80  
120  
160  
200  
t, TIME (ms)  
t, TIME (ms)  
Figure 17. NCP1117XT12 Load  
Transient Response  
Figure 16. NCP1117XT12 Line  
Transient Response  
180  
160  
1.6  
1.4  
1.2  
P
for T = 50°C  
D(max)  
A
140  
120  
100  
80  
2.0 oz. Copper  
L
Minimum  
Size Pad  
1.0  
0.8  
0.6  
0.4  
L
R
q
JA  
60  
0
5.0  
10  
15  
20  
25  
30  
L, LENGTH OF COPPER (mm)  
Figure 18. SOT−223 Thermal Resistance and Maximum  
Power Dissipation vs. P.C.B. Copper Length  
1.6  
1.4  
1.2  
1.0  
0.8  
0.6  
0.4  
100  
90  
P
for T = 50°C  
A
D(max)  
2.0 oz. Copper  
80  
70  
60  
50  
L
Minimum  
Size Pad  
L
R
q
JA  
40  
0
5.0  
10  
15  
20  
25  
30  
L, LENGTH OF COPPER (mm)  
Figure 19. DPAK Thermal Resistance and Maximum  
Power Dissipation vs. P.C.B. Copper Length  
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7
 
NCP1117, NCV1117  
APPLICATIONS INFORMATION  
Introduction  
Frequency compensation for the regulator is provided by  
The NCP1117 features a significant reduction in dropout  
voltage along with enhanced output voltage accuracy and  
temperature stability when compared to older industry  
standard three−terminal adjustable regulators. These  
devices contain output current limiting, safe operating area  
compensation and thermal shutdown protection making  
them designer friendly for powering numerous consumer  
and industrial products. The NCP1117 series is pin  
compatible with the older LM317 and its derivative device  
types.  
capacitor C and its use is mandatory to ensure output  
out  
stability. A minimum capacitance value of 4.7 mF with an  
equivalent series resistance (ESR) that is within the limits of  
0.25 W to 2.2 W is required. The capacitor type can be  
ceramic, tantalum, or aluminum electrolytic as long as it  
meets the minimum capacitance value and ESR limits over  
the circuit’s entire operating temperature range. Higher  
values of output capacitance can be used to enhance loop  
stability and transient response with the additional benefit of  
reducing output noise.  
Output Voltage  
Input  
C
Output  
3
2
NCP1117  
XTA  
The typical application circuits for the fixed and  
adjustable output regulators are shown in Figures 20 and 21.  
The adjustable devices are floating voltage regulators. They  
develop and maintain the nominal 1.25 V reference voltage  
between the output and adjust pins. The reference voltage is  
programmed to a constant current source by resistor R1, and  
this current flows through R2 to ground to set the output  
voltage. The programmed current level is usually selected to  
be greater than the specified 5.0 mA minimum that is  
+
+
R1  
C
C
V
in  
out  
ref  
1
I
adj  
+
adj  
R2  
R2  
ref ǒ1 ) Ǔ) I  
V
+ V  
R2  
out  
adj  
R1  
required for regulation. Since the adjust pin current, I , is  
Figure 21. Adjustable Output Regulator  
adj  
significantly lower and constant with respect to the  
programmed load current, it generates a small output  
voltage error that can usually be ignored. For the fixed  
output devices R1 and R2 are included within the device and  
The output ripple will increase linearly for fixed and  
adjustable devices as the ratio of output voltage to the  
reference voltage increases. For example, with a 12 V  
regulator, the output ripple will increase by 12 V/1.25 V or  
9.6 and the ripple rejection will decrease by 20 log of this  
ratio or 19.6 dB. The loss of ripple rejection can be restored  
to the values shown with the addition of bypass capacitor  
the ground current I , ranges from 3.0 mA to 5.0 mA  
gnd  
depending upon the output voltage.  
External Capacitors  
Input bypass capacitor C may be required for regulator  
in  
C
adj  
, shown in Figure 21. The reactance of C at the ripple  
adj  
stability if the device is located more than a few inches from  
the power source. This capacitor will reduce the circuit’s  
sensitivity when powered from a complex source impedance  
and significantly enhance the output transient response. The  
input bypass capacitor should be mounted with the shortest  
possible track length directly across the regulator’s input  
and ground terminals. A 10 mF ceramic or tantalum  
capacitor should be adequate for most applications.  
frequency must be less than the resistance of R1. The value  
of R1 can be selected to provide the minimum required load  
current to maintain regulation and is usually in the range of  
100 W to 200 W.  
1
C
u
adj  
2 p f  
R1  
ripple  
The minimum required capacitance can be calculated  
from the above formula. When using the device in an  
application that is powered from the AC line via a  
transformer and a full wave bridge, the value for C is:  
adj  
Input  
Output  
3
2
NCP1117  
XTXX  
f
120 Hz, R1 + 120 W, then C  
u 11.1 mF  
adj  
ripple +  
+
+
The value for C is significantly reduced in applications  
adj  
C
C
out  
in  
1
where the input ripple frequency is high. If used as a post  
regulator in a switching converter under the following  
conditions:  
I
gnd  
f
+ 50 kHz, R1 + 120 W, then C  
u 0.027 mF  
adj  
ripple  
Figure 20. Fixed Output Regulator  
Figures 10 and 11 shows the level of ripple rejection that  
is obtainable with the adjust pin properly bypassed.  
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8
 
NCP1117, NCV1117  
Protection Diodes  
The second condition is that the ground end of R2 should be  
connected directly to the load. This allows true Kelvin  
sensing where the regulator compensates for the voltage  
drop caused by wiring resistance RW −.  
The NCP1117 family has two internal low impedance  
diode paths that normally do not require protection when  
used in the typical regulator applications. The first path  
connects between V and V , and it can withstand a peak  
out  
in  
surge current of about 15 A. Normal cycling of V cannot  
Input  
RW+ Output  
in  
3
2
NCP1117  
XTA  
generate a current surge of this magnitude. Only when V  
in  
+
Remote  
Load  
is shorted or crowbarred to ground and C is greater than  
C
out  
out  
+
R1  
1
C
in  
50 mF, it becomes possible for device damage to occur.  
R2  
Under these conditions, diode D1 is required to protect the  
device. The second path connects between C and V , and  
adj  
out  
it can withstand a peak surge current of about 150 mA.  
Protection diode D2 is required if the output is shorted or  
RW−  
crowbarred to ground and C is greater than 1.0 mF.  
adj  
Figure 23. Load Sensing  
D1  
Thermal Considerations  
1N4001  
This series contains an internal thermal limiting circuit  
that is designed to protect the regulator in the event that the  
maximum junction temperature is exceeded. When  
activated, typically at 175°C, the regulator output switches  
off and then back on as the die cools. As a result, if the device  
is continuously operated in an overheated condition, the  
output will appear to be oscillating. This feature provides  
protection from a catastrophic device failure due to  
accidental overheating. It is not intended to be used as a  
substitute for proper heatsinking. The maximum device  
power dissipation can be calculated by:  
Input  
C
Output  
3
NCP1117  
XTA  
2
+
+
D2  
1N4001  
R1  
C
in  
out  
1
+
C
adj  
R2  
Figure 22. Protection Diode Placement  
A combination of protection diodes D1 and D2 may be  
required in the event that V is shorted to ground and C  
is greater than 50 mF. The peak current capability stated for  
the internal diodes are for a time of 100 ms with a junction  
temperature of 25°C. These values may vary and are to be  
used as a general guide.  
T
* T  
A
J(max)  
P
+
D
in  
adj  
R
qJA  
The devices are available in surface mount SOT−223 and  
DPAK packages. Each package has an exposed metal tab  
that is specifically designed to reduce the junction to air  
thermal resistance, R , by utilizing the printed circuit  
qJA  
board copper as a heat dissipater. Figures 18 and 19 show  
Load Regulation  
typical R  
values that can be obtained from a square  
The NCP1117 series is capable of providing excellent  
load regulation; but since these are three terminal devices,  
only partial remote load sensing is possible. There are two  
conditions that must be met to achieve the maximum  
available load regulation performance. The first is that the  
top side of programming resistor R1 should be connected as  
close to the regulator case as practicable. This will minimize  
the voltage drop caused by wiring resistance RW + from  
appearing in series with reference voltage that is across R1.  
qJA  
pattern using economical single sided 2.0 ounce copper  
board material. The final product thermal limits should be  
tested and quantified in order to insure acceptable  
performance and reliability. The actual R  
can vary  
qJA  
considerably from the graphs shown. This will be due to any  
changes made in the copper aspect ratio of the final layout,  
adjacent heat sources, and air flow.  
http://onsemi.com  
9
NCP1117, NCV1117  
Constant Current  
Output  
Input  
NCP1117  
XTA  
3
2
Output  
Input  
R
+
+
NCP1117  
XTA  
3
2
10  
mF  
10  
mF  
R1  
1
+
+
50 k 1N4001  
10  
mF  
10  
1
mF  
R2  
2N2907  
10  
mF  
V
R
ref  
I
+
) I  
out  
adj  
Figure 24. Constant Current Regulator  
Figure 25. Slow Turn−On Regulator  
Output  
Input  
NCP1117  
XTA  
3
2
+
+
10  
mF  
10  
mF  
R1  
R2  
1
Output  
Input  
NCP1117  
XTA  
3
2
+
+
10  
10  
mF  
120  
360  
1
mF  
2N2222  
1.0 k  
Output Control  
On  
2N2222  
1.0 k  
Off  
Output Voltage Control  
Resistor R2 sets the maximum output voltage. Each  
transistor reduces the output voltage when turned on.  
V
+ V  
ref  
out(Off)  
Figure 26. Regulator with Shutdown  
Figure 27. Digitally Controlled Regulator  
Output  
Input  
3
NCP1117  
XT50  
2
+
+
10  
10  
1
mF  
mF  
50 W  
Input  
Output  
5.0 V to  
12 V  
+
3
2
NCP1117  
XT50  
5.3 V AC Line  
5.0 V Battery  
R
CHG  
+
10  
mF  
10  
1
mF  
NCP1117  
XT50  
3
2
+
+
10  
mF  
10  
mF  
+
6.6 V  
2.0 k  
1
The 50 W resistor that is in series with the ground pin of the  
upper regulator level shifts its output 300 mV higher than the  
lower regulator. This keeps the lower regulator off until the  
input source is removed.  
Figure 28. Battery Backed−Up Power Supply  
Figure 29. Adjusting Output of Fixed  
Voltage Regulators  
http://onsemi.com  
10  
NCP1117, NCV1117  
ORDERING INFORMATION  
Device  
NCP1117DTA  
Nominal Output Voltage  
Package  
Shipping  
DPAK  
75 Units / Rail  
NCP1117DTAG  
DPAK  
(Pb−Free)  
NCP1117DTARK  
DPAK  
NCP1117DTARKG  
DPAK  
(Pb−Free)  
Adjustable  
2500 / Tape & Reel  
NCP1117DTAT5  
DPAK  
NCP1117DTAT5G  
DPAK  
(Pb−Free)  
NCP1117STAT3  
SOT−223  
4000 / Tape & Reel  
75 Units / Rail  
NCP1117STAT3G  
SOT−223  
(Pb−Free)  
NCP1117DT12  
DPAK  
NCP1117DT12G  
DPAK  
(Pb−Free)  
NCP1117DT12RK  
NCP1117DT12RKG  
DPAK  
12  
2500 / Tape & Reel  
4000 / Tape & Reel  
75 Units / Rail  
DPAK  
(Pb−Free)  
NCP1117ST12T3  
SOT−223  
NCP1117ST12T3G  
SOT−223  
(Pb−Free)  
NCP1117DT15  
DPAK  
NCP1117DT15G  
DPAK  
(Pb−Free)  
NCP1117DT15RK  
NCP1117DT15RKG  
DPAK  
1.5  
2500 / Tape & Reel  
4000 / Tape & Reel  
75 Units / Rail  
DPAK  
(Pb−Free)  
NCP1117ST15T3  
SOT−223  
NCP1117ST15T3G  
SOT−223  
(Pb−Free)  
NCP1117DT18  
DPAK  
NCP1117DT18G  
DPAK  
(Pb−Free)  
NCP1117DT18RK  
NCP1117DT18RKG  
DPAK  
DPAK  
(Pb−Free)  
1.8  
1.9  
2500 / Tape & Reel  
NCP1117DT18T5  
NCP1117DT18T5G  
DPAK  
DPAK  
(Pb−Free)  
NCP1117ST18T3  
SOT−223  
4000 / Tape & Reel  
2500 / Tape & Reel  
NCP1117ST18T3G  
SOT−223  
(Pb−Free)  
NCP1117DT19RKG  
DPAK  
(Pb−Free)  
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging  
Specifications Brochure, BRD8011/D.  
*NCV prefix is for automotive and other applications requiring site and control changes.  
http://onsemi.com  
11  
NCP1117, NCV1117  
ORDERING INFORMATION  
Device  
NCP1117DT20  
Nominal Output Voltage  
Package  
Shipping  
DPAK  
75 Units / Rail  
2500 / Tape & Reel  
4000 / Tape & Reel  
75 Units / Rail  
NCP1117DT20G  
DPAK  
(Pb−Free)  
NCP1117DT20RK  
NCP1117DT20RKG  
DPAK  
2.0  
DPAK  
(Pb−Free)  
NCP1117ST20T3  
SOT−223  
NCP1117ST20T3G  
SOT−223  
(Pb−Free)  
NCP1117DT25  
DPAK  
NCP1117DT25G  
DPAK  
(Pb−Free)  
NCP1117DT25RK  
NCP1117DT25RKG  
DPAK  
DPAK  
(Pb−Free)  
2.5  
2500 / Tape & Reel  
NCP1117DT25T5  
NCP1117DT25T5G  
DPAK  
DPAK  
(Pb−Free)  
NCP1117ST25T3  
SOT−223  
4000 / Tape & Reel  
75 Units / Rail  
NCP1117ST25T3G  
SOT−223  
(Pb−Free)  
NCP1117DT285  
DPAK  
NCP1117DT285G  
DPAK  
(Pb−Free)  
NCP1117DT285RK  
NCP1117DT285RKG  
DPAK  
2.85  
2500 / Tape & Reel  
4000 / Tape & Reel  
75 Units / Rail  
DPAK  
(Pb−Free)  
NCP1117ST285T3  
NCP1117ST285T3G  
SOT−223  
SOT−223  
(Pb−Free)  
NCP1117DT33  
DPAK  
NCP1117DT33G  
DPAK  
(Pb−Free)  
NCP1117DT33RK  
NCP1117DT33RKG  
DPAK  
DPAK  
(Pb−Free)  
3.3  
2500 / Tape & Reel  
NCP1117DT33T5  
NCP1117DT33T5G  
DPAK  
DPAK  
(Pb−Free)  
NCP1117ST33T3  
SOT−223  
4000 / Tape & Reel  
75 Units / Rail  
NCP1117ST33T3G  
SOT−223  
(Pb−Free)  
NCP1117DT50  
DPAK  
NCP1117DT50G  
DPAK  
(Pb−Free)  
NCP1117DT50RK  
NCP1117DT50RKG  
DPAK  
5.0  
2500 / Tape & Reel  
4000 / Tape & Reel  
DPAK  
(Pb−Free)  
NCP1117ST50T3  
SOT−223  
NCP1117ST50T3G  
SOT−223  
(Pb−Free)  
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging  
Specifications Brochure, BRD8011/D.  
*NCV prefix is for automotive and other applications requiring site and control changes.  
http://onsemi.com  
12  
NCP1117, NCV1117  
ORDERING INFORMATION  
Device  
NCV1117DTARK*  
NCV1117DTARKG*  
Nominal Output Voltage  
Package  
Shipping  
DPAK  
2500 / Tape & Reel  
DPAK  
(Pb−Free)  
Adjustable  
NCV1117STAT3*  
SOT−223  
NCV1117STAT3G*  
SOT−223  
(Pb−Free)  
4000 / Tape & Reel  
NCV1117ST12T3*  
NCV1117ST12T3G*  
SOT−223  
12  
SOT−223  
(Pb−Free)  
NCV1117DT15RK*  
NCV1117DT15RKG*  
DPAK  
2500 / Tape & Reel  
4000 / Tape & Reel  
DPAK  
(Pb−Free)  
1.5  
NCV1117ST15T3*  
NCV1117ST15T3G*  
SOT−223  
SOT−223  
(Pb−Free)  
NCV1117DT18RKG*  
DPAK  
(Pb−Free)  
NCV1117DT18T5*  
NCV1117DT18T5G*  
1.8  
2.0  
DPAK  
DPAK  
(Pb−Free)  
2500 / Tape & Reel  
NCV1117DT20RK*  
NCV1117DT20RKG*  
DPAK  
DPAK  
(Pb−Free)  
NCV1117ST20T3*  
NCV1117ST20T3G*  
SOT−223  
4000 / Tape & Reel  
2500 / Tape & Reel  
4000 / Tape & Reel  
2500 / Tape & Reel  
4000 / Tape & Reel  
2500 / Tape & Reel  
SOT−223  
(Pb−Free)  
NCV1117DT25RK*  
NCV1117DT25RKG*  
DPAK  
DPAK  
(Pb−Free)  
2.5  
NCV1117ST25T3*  
NCV1117ST25T3G*  
SOT−223  
SOT−223  
(Pb−Free)  
NCV1117DT33T5*  
NCV1117DT33T5G*  
DPAK  
3.3  
3.3  
5.0  
DPAK  
(Pb−Free)  
NCV1117ST33T3*  
NCV1117ST33T3G*  
SOT−223  
SOT−223  
(Pb−Free)  
NCV1117DT50RK*  
NCV1117DT50RKG*  
DPAK  
DPAK  
(Pb−Free)  
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging  
Specifications Brochure, BRD8011/D.  
*NCV prefix is for automotive and other applications requiring site and control changes.  
http://onsemi.com  
13  
NCP1117, NCV1117  
MARKING DIAGRAMS − NCP PREFIX  
SOT−223  
ST SUFFIX  
CASE 318H  
AYW  
117−A G  
G
AYW  
17−15 G  
G
AYW  
17−18 G  
G
AYW  
17−19 G  
G
AYW  
117−2 G  
G
AYW  
17−25 G  
G
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
Adjustable  
1.5 V  
1.8 V  
1.9 V  
2.0 V  
2.5 V  
AYW  
7−285 G  
G
AYW  
17−33 G  
G
AYW  
117−5 G  
G
AYW  
17−12 G  
G
1
2
3
1
2
3
1
2
3
1
2
3
2.85 V  
3.3 V  
5.0 V  
12 V  
DPAK  
DT SUFFIX  
CASE 369C  
117AJG  
ALYWW  
17−15G  
ALYWW  
17−18G  
ALYWW  
17−19G  
ALYWW  
117−2G  
ALYWW  
17−25G  
ALYWW  
2
2
2
2
2
2
1
3
1
3
1
3
1
3
1
3
1
3
Adjustable  
1.5 V  
1.8 V  
1.9 V  
2.0 V  
2.5 V  
17285G  
ALYWW  
17−33G  
ALYWW  
117−5G  
ALYWW  
17−12G  
ALYWW  
2
2
2
2
1
3
1
3
1
3
1
3
2.85 V  
3.3 V  
5.0 V  
12 V  
A
L
= Assembly Location  
= Wafer Lot  
Y
= Year  
WW, W = Work Week  
G or G = Pb−Free Package  
(Note: Microdot may be in either location)  
http://onsemi.com  
14  
NCP1117, NCV1117  
MARKING DIAGRAMS − NCV PREFIX  
SOT−223  
ST SUFFIX  
CASE 318H  
AYW  
117AV G  
G
AYW  
1715V G  
G
AYW  
1172V G  
G
1
2
3
1
2
3
1
2
3
Adjustable  
1.5 V  
2.0 V  
AYW  
AYW  
1712V G  
G
AYW  
1725V G  
G
1733V G  
G
1
2
3
1
2
3
1
2
3
2.5 V  
3.3 V  
12 V  
DPAK  
DT SUFFIX  
CASE 369C  
17AJVG  
ALYWW  
1715VG  
ALYWW  
1718VG  
ALYWW  
1172VG  
ALYWW  
2
2
2
2
1
3
1
3
1
3
1
3
Adjustable  
1.5 V  
1.8 V  
2.0 V  
1725VG  
ALYWW  
1733VG  
ALYWW  
1175VG  
ALYWW  
2
2
2
1
3
1
3
1
3
2.5 V  
3.3 V  
5.0 V  
A
L
= Assembly Location  
= Wafer Lot  
Y
= Year  
WW, W = Work Week  
G or G = Pb−Free Package  
(Note: Microdot may be in either location)  
http://onsemi.com  
15  
NCP1117, NCV1117  
PACKAGE DIMENSIONS  
SOT−223  
ST SUFFIX  
CASE 318H−01  
ISSUE O  
0.08  
NOTES:  
E
1. DIMENSIONS ARE IN MILLIMETERS.  
2. INTERPRET DIMENSIONS AND TOLERANCES  
PER ASME Y14.5M, 1994.  
3. DIMENSION E1 DOES NOT INCLUDE INTERLEAD  
FLASH OR PROTRUSION. INTERLEAD FLASH OR  
PROTRUSION SHALL NOT EXCEED 0.23 PER  
SIDE.  
4. DIMENSIONS b AND b2 DO NOT INCLUDE  
DAMBAR PROTRUSION. ALLOWABLE DAMBAR  
PROTRUSION SHALL BE 0.08 TOTAL IN EXCESS  
OF THE b AND b2 DIMENSIONS AT MAXIMUM  
MATERIAL CONDITION.  
M
S
0.2  
C B  
C
H
B
3
2
e
A
e1  
A
5. TERMINAL NUMBERS ARE SHOWN FOR  
REFERENCE ONLY.  
6. DIMENSIONS D AND E1 ARE TO BE DETERMINED  
AT DATUM PLANE H.  
4
B
1
b2  
0.1  
A1  
A
MILLIMETERS  
E1  
B
DIM MIN  
MAX  
1.80  
0.11  
0.88  
0.80  
3.10  
3.05  
0.35  
0.30  
6.70  
7.30  
3.70  
A
M
S
S
B
A
C
A
A1  
b
−−−  
0.02  
0.60  
0.60  
2.90  
2.90  
0.24  
0.24  
6.30  
6.70  
3.30  
b1  
b2  
b3  
c
(b)  
b1  
(b2)  
c
c1  
c1  
D
T
E
E1  
e
b3  
2.30  
4.60  
SECTION B−B  
L
SECTION A−A  
e1  
L
−−−  
10  
0.25  
0
T
_
_
SOLDERING FOOTPRINT*  
3.8  
0.15  
2.0  
0.079  
6.3  
0.248  
2.3  
0.091  
2.3  
0.091  
2.0  
0.079  
mm  
inches  
ǒ
Ǔ
1.5  
0.059  
SCALE 6:1  
*For additional information on our Pb−Free strategy and soldering  
details, please download the ON Semiconductor Soldering and  
Mounting Techniques Reference Manual, SOLDERRM/D.  
http://onsemi.com  
16  
NCP1117, NCV1117  
PACKAGE DIMENSIONS  
DPAK  
DT SUFFIX  
CASE 369C−01  
ISSUE O  
NOTES:  
SEATING  
PLANE  
−T−  
1. DIMENSIONING AND TOLERANCING  
PER ANSI Y14.5M, 1982.  
C
B
R
2. CONTROLLING DIMENSION: INCH.  
E
V
INCHES  
DIM MIN MAX  
MILLIMETERS  
MIN  
5.97  
6.35  
2.19  
0.69  
0.46  
0.94  
MAX  
6.22  
6.73  
2.38  
0.88  
0.58  
1.14  
A
B
C
D
E
F
G
H
J
0.235 0.245  
0.250 0.265  
0.086 0.094  
0.027 0.035  
0.018 0.023  
0.037 0.045  
0.180 BSC  
0.034 0.040  
0.018 0.023  
0.102 0.114  
0.090 BSC  
4
2
Z
A
K
S
1
3
U
4.58 BSC  
0.87  
0.46  
2.60  
1.01  
0.58  
2.89  
K
L
F
2.29 BSC  
J
R
S
U
V
Z
0.180 0.215  
0.025 0.040  
4.57  
0.63  
0.51  
0.89  
3.93  
5.45  
1.01  
−−−  
1.27  
−−−  
L
H
0.020  
0.035 0.050  
0.155 −−−  
−−−  
D 2 PL  
M
G
0.13 (0.005)  
T
SOLDERING FOOTPRINT*  
6.20  
3.0  
0.244  
0.118  
2.58  
0.101  
5.80  
0.228  
1.6  
0.063  
6.172  
0.243  
mm  
inches  
ǒ
Ǔ
SCALE 3:1  
*For additional information on our Pb−Free strategy and soldering  
details, please download the ON Semiconductor Soldering and  
Mounting Techniques Reference Manual, SOLDERRM/D.  
ON Semiconductor and  
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice  
to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability  
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.  
“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All  
operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights  
nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications  
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should  
Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates,  
and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death  
associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal  
Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.  
PUBLICATION ORDERING INFORMATION  
LITERATURE FULFILLMENT:  
N. American Technical Support: 800−282−9855 Toll Free  
USA/Canada  
Europe, Middle East and Africa Technical Support:  
Phone: 421 33 790 2910  
Japan Customer Focus Center  
Phone: 81−3−5773−3850  
ON Semiconductor Website: www.onsemi.com  
Order Literature: http://www.onsemi.com/orderlit  
Literature Distribution Center for ON Semiconductor  
P.O. Box 5163, Denver, Colorado 80217 USA  
Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada  
Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada  
Email: orderlit@onsemi.com  
For additional information, please contact your local  
Sales Representative  
NCP1117/D  
配单直通车
NCV1117ST33T3G产品参数
型号:NCV1117ST33T3G
Brand Name:ON Semiconductor
是否无铅: 不含铅
生命周期:Active
零件包装代码:SOT-223
包装说明:SOP, SOT-223
针数:4
制造商包装代码:318H-01
Reach Compliance Code:compliant
ECCN代码:EAR99
HTS代码:8542.39.00.01
Factory Lead Time:1 week
风险等级:1.01
可调性:FIXED
最大回动电压 1:1.2 V
标称回动电压 1:1.07 V
最大绝对输入电压:20 V
最大输入电压:15 V
最小输入电压:4.75 V
JESD-30 代码:R-PDSO-G4
JESD-609代码:e3
长度:6.5 mm
最大电网调整率:0.0045%
最大负载调整率:0.01%
湿度敏感等级:1
功能数量:1
输出次数:1
端子数量:4
工作温度TJ-Max:150 °C
工作温度TJ-Min:-55 °C
最高工作温度:125 °C
最低工作温度:-40 °C
最大输出电流 1:1 A
最大输出电压 1:3.365 V
最小输出电压 1:3.235 V
标称输出电压 1:3.3 V
封装主体材料:PLASTIC/EPOXY
封装代码:SOP
封装等效代码:SOT-223
封装形状:RECTANGULAR
封装形式:SMALL OUTLINE
包装方法:TR
峰值回流温度(摄氏度):260
认证状态:Not Qualified
调节器类型:FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
筛选级别:AEC-Q100
座面最大高度:1.8 mm
子类别:Other Regulators
表面贴装:YES
技术:BIPOLAR
端子面层:Tin (Sn)
端子形式:GULL WING
端子节距:2.3 mm
端子位置:DUAL
处于峰值回流温度下的最长时间:40
最大电压容差:2%
宽度:3.5 mm
Base Number Matches:1
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