Data Sheet
100mA REGULATED CHARGE PUMP
General Description
The AP3602A/B are regulated step-up DC/DC
converters based on charge pump technique. These ICs
have the ability to supply 100mA constant output
current or 250mA peak output current for 100ms from
3.0V to 5V input (2.7V to 4.5 V for AP3602B), so they
can be used as white LEDs driver or flash LED driver.
The AP3602A/B have very low power dissipation and
high efficiency in typical applications. Other features
include over-temperature protection, low temperature
coefficient and etc. to meet some special requirements
of hand-held battery powered devices.
Only 3 external capacitors are required in applications,
which helps to save space and lower cost. These chips
also have a disable terminal to turn on or turn off the
chip to ease the use.
The AP3602A/B are available in SOT-23-6 package.
AP3602A/B
Features
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·
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Low Quiescent Current: 13
µ
A Typical
Regulated Output Voltage Precision: 4%
High Output Current:
100mA when V
IN
≥3.0V
50mA when V
IN
≥2.7V
High Frequency: up to 1.2 MHz
Low Shutdown Supply Current: <1
µ
A
High Output Peak Current: 250mA for 100ms
Over Temperature Protection
Operating Temperature Range: -40
o
C to 85
o
C
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·
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·
Applications
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·
·
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Mobile Phone Backlight Driver
Camera Flash LED Driver
MP3, MP4
Handheld Device
Portable Communication Device
SOT-23-6
Figure 1. Package Type of AP3602A/B
Apr. 2007 Rev. 1.2
1
BCD Semiconductor Manufacturing Limited
BCDSEMI [ BCD SEMICONDUCTOR MANUFACTURING LIMITED ]
