The BD9873,74CP-V5 single-channel step-down switching regulatorincorporates a Pch MOSFET capable, as well as circuitry that eliminates the need for external compensation – only a diode, coil, and ceramic capacitor are required – reducing board size significantly. 

● Features

 1)  Maximum switching current : 1.5A, 3.0A

 2)  Built-in Pch FET ensures high efficiency

 3)  Output voltage adjustable via external resistors

 4)  High switching frequency : 110kHz (fixed)

 5)  Soft start time : 4ms (fixed)

 6)  Over current and thermal shutdown protection circuits built in

 7)  ON/OFF control via STBY pin