世微AP9231 PFM升压DC -DC恒定电流驱动 大功率LED电源恒流电源

1W StepupDC-DCWhiteLED Driver Description: Features: Applications:

AP9231 is a PFM Step-up DC/DC driver IC with invariant current, design for LED applications. Thought the external resistance, output current reach 0mA~500mA. A low ripple, high efficiency step-up DC/DC converter can be constructed of AP9231. with only three external components. Also available is a CE (chip enable) function that reduce power consumption.

 Low start voltage：0.8V ( at Iout=1mA)

 Output Current range：0~ 500mA

 Output Current accuracy：±10%

 Only inductors, capacitors, Schottky diodes, resistors and so few external components

 High Efficiency：82%(Type)

 PACKAGE：SOT-23-5，SOT-89-5

 Power source for high-power LED

 Power source for invariant current