Kingbor Technology Co.,Ltd
TEL:(86)0755-83095458 FAX:(86)0755-88364052
KB3310
Preliminary Product Information
MicroPower Charge Pump Converter
FEATURES
Step-Up Voltage Converter
Input Voltage Range: 2.7 to 5.0V
Low input current 25
A
High Output Voltage Accuracy
3%
150mA output current with VIN
3.3V
Peak Current 250mA for 100ms
High Frequency 750kHz Operation
Logic-Controlled Shutdown
Short-Circuit/Over-Temperature Protection
Lead (Pb) Free
SOT23-6 Package
DESCRIPTION
The kB3310 is a MicroPower switched capacitor
voltage converter that delivers a regulated output. No
external inductor is required for operation.
The kB3310 can deliver up to 150mA to the voltage
regulated output. It features very low quiescent current
and high efficiency over a large portion of its load range,
making this device ideal for battery-powered
applications. Furthermore, the combination of few
external components and small package size keeps the
total converter board area to a minimum in
space-restricted applications.
The kB3310 uses a pulse skipping technique to provide
a regulated output from a varying input supply. The
kB3310 contains a thermal management circuit to
protect the device under continuous output short-circuit
conditions.
The kB3310 has lead (Pb) free SOT23-6 package and is
rated over the -30°C to +85°C temperature range.
APPLICATIONS
Cellular Phones
Digital Cameras
Handheld Electronics
LED/Display Backlight Driver
LEDs for Camera Flash
Portable Communication Devices
MP3 Players
GPS Receivers
PDAs
APPLICATION CIRCUIT
1
2
6
V
OUT
=5.0V (150
mA
)
C
OUT
= 10µF
V
OUT
GND
C+
1µF
V
IN
=3.3V to 5.0V
V
IN
5
C-
4
ON/OFF
3
SHDN
C
IN
= 10µF
KB3310
1
Kingbor Technology Co.,Ltd
TEL:(86)0755-83095458 FAX:(86)0755-88364052
KB3310
Preliminary Product Information
MicroPower Charge Pump Converter
PIN CONFIGURATION
SOT23-6
C+
VIN
C-
310
xxxxx
OUT GND /SHDN
ORDER INFORMATION
Part number
KB3310
GRE
x x x x x
: Date Code
Package
SOT23-6, Green
Marking
310, Date Code with one bottom line
PIN DESCRIPTION
Pin No.
1
2
3
4
5
6
Symbol
OUT
GND
/SHDN
CN
VIN
CP
I/O
O
P
I
-
P
+
Description
Regulated Output
Ground
Chip Enable Input
Flying Capacitor negative terminal
Input Supply
Flying Capacitor positive terminal
2
Kingbor Technology Co.,Ltd
TEL:(86)0755-83095458 FAX:(86)0755-88364052
KB3310
0
Preliminary Product Information
MicroPower Charge Pump Converter
ABSOLUTE MAXIMUM RATINGS
Parameter
Power supply voltage
OUT pin voltage
SHDN pin voltage
Allowable dissipation
Operating temperature
Storage temperature
Symbol
V
IN
V
OUT
V
SHDN
P
D
T
OP
T
stg
(Ta=+25
0
C)
Condition
—
—
—
—
—
—
Rated Value
Min.
Max.
—
6.5
—
6.5
—
6.5
—
250
-30
+85
-55
+125
Unit
V
V
V
mW
0
C
0
C
ELECTRICAL CHARACTERISTICS
Parameter
Input Voltage
No Load Supply
Current
Output Voltage
Symbol
V
IN
V
Start
V
OUT
=5.0V
Condition
(Ta=+25 C)
0
Min.
2.7
-
4.85
4.85
-
-
-
-
-
-
600
1.4
-
Values
Typ.
-
25
5.0
5.0
-
-
25
40
85
93
850
-
-
-
-
2
300
Max.
V
OUT
40
5.15
5.15
1
4
-
-
-
-
1000
-
0.3
2
2
-
-
Unit
V
A
V
V
A
A
mV
mV
%
%
KHz
V
V
A
A
ms
mA
2.7V< V
IN
<5.0V,I
OUT
=0mA,
/SHDN=V
IN
2.7V< V
IN
<5.0V ,I
OUT
50mA
V
OUT
3.3V< V
IN
<5.0V ,I
OUT
150mA
2.7V< V
IN
<3.6V ,I
OUT
=0mA,
EN=0V
3.6V< V
IN
<5.0V ,I
OUT
=0mA,
EN=0V
V
IN
=3V, I
OUT
=50mA
Shutdown Current
I
SHDN
Ripple Current
V
Ripple
V
IN
=3.3V,I
OUT
=150mA
V
IN
=3V, I
OUT
=50mA
Efficency
V
IN
=2.7V, I
OUT
=50mA
Frequency
EN Input
Threshold
F
V
IH
V
IL
I
IH
EN Input Current
I
IL
OUT Turn-ON time
Short-Circuit Current
t
ON
I
SC
EN= 0V
V
IN
=3V, I
OUT
=0mA
V
IN
=3V,V
OUT
=GND,EN=3V
-2
-
-
EN= V
IN
Oscillator Free Running
-2
3
Kingbor Technology Co.,Ltd
TEL:(86)0755-83095458 FAX:(86)0755-88364052
KB3310
Preliminary Product Information
MicroPower Charge Pump Converter
TYPICAL PERFORMANCE CHARACTERISTICS
4
Kingbor Technology Co.,Ltd
TEL:(86)0755-83095458 FAX:(86)0755-88364052
KB3310
Preliminary Product Information
MicroPower Charge Pump Converter
TYPICAL PERFORMANCE CHARACTERISTICS
APPLICATION CIRCUIT
LED Driver from a Li-Ion Battery Source
1
6
V
OUT
GND
C+
1µF
V
IN
=3.0V to 5.0V
= 10µF
2
V
IN
5
C-
4
PWM/EN
3
SHDN
C
IN
= 10µF
KB3310
5
Analogue and Mixed Signal
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