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