ST1S32 Datasheet (STMicroelectronics) - 4A DC step-down switching regulator

ST1S32, 4A DC step-down switching regulator

The ST1S32 is an internally compensated 1.5 MHz fixed-frequency PWM synchronous stepdown regulator.

The ST1S32 operates from 2.8 V to 5.5 V input, while it regulates an output voltage as low as 0.8 V and up to VIN.

The ST1S32 integrates a 60 mΩ high-side switch and a 45 mΩ synchronous rectifier, all

ST1S32 Features

* 4 A DC output current

* 2.8 V to 5.5 V input voltage

* Output voltage adjustable from 0.8 V

* 1.5 MHz switching frequency

* Internal soft-start and enable

* Integrated 60 mΩ and 45 mΩ Power MOSFETs

* All ceramic capacitor

* Power Good (POR)

* Cycle-by-cycle curr