FP7103 28V, 3A Buck Constant Current Switching Regulator for White LED
General Description		Download
The FP7103 is a PWM control buck converter designed to provide a simple, high efficiency solution for driving high power LEDs. With a 0.25V reference voltage feedback control to minimize power dissipation, an external resistor sets the current as needed for driving various types of LEDs. The FP7103 includes a high current P-MOSFET to realize high efficiency and excellent transient characteristics. The PWM control circuit is able to change the duty ratio linearly from 0 up to 100%. Other features include user accessible EN/DIM pin for enabling and PWM dimming of LEDs, thermal shutdown, cycle-by cycle current limit and over current protection.		；Data Sheet
Features
；Wide Supply Voltage Operating Range: 3.6 to 28V  ；Built-in P-MOSFET for 3A Loading Capability ；Precision Feedback Reference Voltage: 0.25V (2%) ；Low Current Consumption: 4mA ；Internal Fixed Oscillator Frequency: 320KHz (Typ.) ；Internal Soft-Start Function (SS) ；Over Current Protection ；Package: SOP-8L