Kingbor Technology Co.,Ltd
TEL:(86)0755-26508846 FAX:(86)0755-26509052
KB3426
(Note 1)
ABSOLUTE MAXIMUM RATINGS
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
Input Supply Voltage .................................. –0.3V to 6.5V
RUN, VFB Voltages ..................................... –0.3V to VIN
SW Voltage .................................. –0.3V to (VIN + 0.3V)
P-Channel Switch Source Current (DC) ............. 800mA
N-Channel Switch Sink Current (DC) ................. 800mA
PACkAGE/ORDER INFORMATION
ORDER PART
NUMBER
ORDER PART
NUMBER
TOP VIEW
TOP VIEW
RUN 1
GND 2
SW 3
5 V
4 V
RUN 1
GND 2
SW 3
5 V
4 V
KB3426-ADJ
KB3426B-3.3
Top Marking
A33x
FB
OUT
IN
Top Marking
IN
KB3426B-1.8
S5 PACKAGE
5-LEAD PLASTIC SOT-23
S5 PACKAGE
5-LEAD PLASTIC SOT-23
A17x
A16x
Top Marking
A37x
TJMAX = 125°C, eJA = 250°C/ W, eJC = 90°C/ W
TJMAX = 125°C, eJA = 250°C/ W, eJC = 90°C/ W
x: date code
x: date code
ELECTRICAL CHARACTERISTICS
The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C.
VIN = 3.6V unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
I
Feedback Current
●
30
nA
VFB
V
Regulated Feedback Voltage
KB3426 (Note 4) T = 25°C
0.5880
0.5865
0.5850
0.6
0.6
0.6
0.6120
0.6135
0.6150
V
V
V
FB
A
KB3426 (Note 4) 0 °C T ) 85°C
A
KB3426 (Note 4) –40 °C ) T ) 85°C
●
●
A
6V
Reference Voltage Line Regulation
Regulated Output Voltage
V
= 2.5V to 5.5V (Note 4)
IN
0.04
0.4
%/V
FB
V
KB3426-1.8, I
KB3426-3.3, I
= 100mA
= 100mA
●
●
1.746
3.234
1.800
3.300
1.854
3.366
V
V
OUT
OUT
OUT
6V
Output Voltage Line Regulation
Peak Inductor Current
V
V
= 2.5V to 5.5V
●
0.04
1
0.4
%/V
A
OUT
IN
I
= 3V, V = 0.5V or V = 90%,
OUT
0.75
2.5
1.25
PK
IN
FB
Duty Cycle < 35%
V
V
Output Voltage Load Regulation
Input Voltage Range
0.5
%
V
LOADREG
IN
●
6.5
I
Input DC Bias Current
Active Mode
Sleep Mode
(Note 5)
S
V
V
V
= 0.5V or V
= 0.62V or V
= 90%, I = 0A
LOAD
300
20
0.1
400
35
1
µA
µA
µA
FB
OUT
= 103%, I
= 0A
FB
OUT
LOAD
Shutdown
= 0V, V = 4.2V
RUN
IN
f
Oscillator Frequency
V
V
= 0.6V or V = 100%
OUT
●
1.2
1.5
210
1.8
MHz
kHz
OSC
FB
FB
= 0V or V
= 0V
OUT
R
R
R
R
of P-Channel FET
of N-Channel FET
I
I
= 100mA
0.4
0.5
0.45
1
1
1
PFET
NFET
LSW
DS(ON)
SW
SW
= –100mA
= 0V, V = 0V or 5V, V = 5V
0.35
0.01
DS(ON)
I
SW Leakage
V
µA
RUN
SW
IN
2
KINGBOR [ KINGBOR TECHNOLOGY CO ]
