Kingbor Technology Co.,Ltd
TEL:(86)0755-26508846 FAX:(86)0755-26509052
KB3426
Peak SW Sink and Source Current ........................ 1.3A
Operating Temperature Range (Note 2) .. – 40°C to 85°C
Junction Temperature (Note 3) ............................ 125°C
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Input Supply Voltage .................................. – 0.3V to 6.5V
RUN, V
FB
Voltages ..................................... – 0.3V to V
IN
SW Voltage .................................. – 0.3V to (V
IN
+ 0.3V)
P-Channel Switch Source Current (DC) ............. 800mA
N-Channel Switch Sink Current (DC) ................. 800mA
PACkAGE/ORDER INFORMATION
TOP VIEW
RUN 1
GND 2
SW 3
5 V
FB
4 V
IN
ORDER PART
NUMBER
KB3426-ADJ
Top Marking
TOP VIEW
RUN 1
GND 2
SW 3
5 V
OUT
4 V
IN
ORDER PART
NUMBER
KB3426B-3.3
Top Marking
Marking
S5 PACKAGE
5-LEAD PLASTIC SOT-23
Marking
JA
T
JMAX
= 125°C,
= 250°C/ W,
JC
= 90°C/ W
A17x
A16x
x: date code
S5 PACKAGE
5-LEAD PLASTIC SOT-23
T
JMAX
= 125°C,
JA
= 250°C/ W,
JC
= 90°C/ W
A33x
KB3426B-1.8
Top Marking
A37x
x: date code
ELECTRICAL CHARACTERISTICS
The
●
denotes specifications which apply over the full operating temperature range, otherwise specifications are T
A
= 25°C.
V
IN
= 3.6V unless otherwise specified.
SYMBOL
I
VFB
V
FB
PARAMETER
Feedback Current
Regulated Feedback Voltage
KB3426 (Note 4) T
A
= 25°C
KB3426 (Note 4) 0
°C
T
A
85°C
KB3426 (Note 4) –40
°C
T
A
85°C
V
IN
= 2.5V to 5.5V (Note 4)
KB3426-1.8, I
KB3426-3.3, I
100mA
OUT
= 100mA
OUT
=
CONDITIONS
●
MIN
0.5880
0.5865
0.5850
1.746
3.234
0.75
TYP
0.6
0.6
0.6
0.04
1.800
3.300
0.04
1
0.5
MAX
±30
0.6120
0.6135
0.6150
0.4
1.854
3.366
0.4
1.25
UNITS
nA
V
V
V
%/V
V
V
%/V
A
%
●
●
●
●
●
V
FB
V
OUT
V
OUT
I
PK
V
LOADREG
V
IN
I
S
Reference Voltage Line Regulation
Regulated Output Voltage
Output Voltage Line Regulation
Peak Inductor Current
Output Voltage Load Regulation
Input Voltage Range
Input DC Bias Current
Active Mode
Sleep Mode
Shutdown
Oscillator Frequency
R
DS(ON)
of P-Channel FET
R
DS(ON)
of N-Channel FET
SW Leakage
V
IN
= 2.5V to 5.5V
V
IN
= 3V, V
FB
= 0.5V or V
OUT
= 90%,
Duty Cycle < 35%
●
2.5
300
20
0.1
6.5
400
35
1
1.8
0.5
0.45
±1
V
µA
µA
µA
MHz
kHz
(Note 5)
V
FB
= 0.5V or V
OUT
= 90%, I
LOAD
= 0A
V
FB
= 0.62V or V
OUT
= 103%, I
LOAD
= 0A
V
RUN
= 0V, V
IN
= 4.2V
V
FB
= 0.6V or V
OUT
= 100%
V
FB
= 0V or V
OUT
= 0V
I
SW
= 100mA
I
SW
= –100mA
V
RUN
= 0V, V
SW
= 0V or 5V, V
IN
= 5V
●
f
OSC
R
PFET
R
NFET
I
LSW
1.2
1.5
210
0.4
0.35
±0.01
µA
2
KINGBOR [ KINGBOR TECHNOLOGY CO ]
