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AP3602B

BCD Semiconductor
Part Number AP3602B
Manufacturer BCD Semiconductor
Description REGULATED CHARGE PUMP
Published May 3, 2007
Detailed Description Data Sheet 100mA REGULATED CHARGE PUMP General Description The AP3602A/B are regulated step-up DC/DC converters based on...
Datasheet PDF File AP3602B PDF File

AP3602B
AP3602B

Overview
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 · · · Low Quiescent Current: 13µA Typical Regulated Output Voltage Precision: 4% High Output Current: 100mA when VIN≥3.
0V 50mA when VIN≥2.
7V High Frequency: up to 1.
2 MHz Low Shutdown Supply Current: <1µA High Output Peak Current: 250mA for 100ms Over Temperature Protection Operating Temperature Range: -40oC to 85oC · · · · · Applications · · · · · Mobile Phone Backlight Driver Camera Flash LED Driver MP3, MP4 Handheld Device Portable Communication Device www.
DataSheet4U.
com SOT-23-6 Figure 1.
Package Type of AP3602A/B Apr.
2007 Rev.
1.
2 1 BCD Semiconductor Manufacturing Limited Data Sheet 100mA REGULATED CHARGE PUMP Pin Configuration K Package (SOT-23-6) AP3602A/B VOUT GND SHDN 1 2 3 6 5 4 C+ VIN C- Figure 2.
Pin Configuration of AP3602A/B (Top View) Pin Description Pin Number 1 Pin Name VOUT Function Regulated Output Voltage.
VOUT should be bypassed with a 1µF to 22µF low ESR ceramic capacitor which is placed as close to the pin as possible for best performance Ground.
GND should be tied to a ground plane for best performance.
The COUT and CIN should be placed as close to this pin as possible ...


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