ST1S03 Datasheet - STMicroelectronics

ST1S03 step-down switching regulator

The ST1S03 is a step-down DC-DC converter optimized for powering a low voltage digital core in HDD applications and, generally, to replace the high current linear solution when the power dissipation may cause a high heating of the application environment. It provides up to 1.5 A over an input voltag.

ST1S03 Features

* Step-down current mode PWM (1.5 MHz) DC-DC converter

* 2% DC output voltage tolerance

* Internal soft-start for STARTUP current limitation and power on delay of 50 - 100 µs

* Typical efficiency: > 70% over all operating conditions

* 1.5 A output current capability

* Not swi

ST1S03_STMicroelectronics.pdf