Datasheet4U Logo Datasheet4U.com

ST1S10 Datasheet monolithic synchronous step-down regulator

Manufacturer: STMicroelectronics

📥 Download Datasheet

General Description

The ST1S10 is a high efficiency step-down PWM current mode switching regulator capable of providing up to 3 A of output current.

The device operates with an input supply range from 2.5 V to 18 V and provides an adjustable output voltage from 0.8 V (VFB) to 0.85 * VIN_SW [VOUT = VFB * (1 + R1/R2)].

It operates either at a 900 kHz fixed frequency or can be synchronized to an external clock (from 400 kHz to 1.2 MHz).

Overview

ST1S10 3 A, 900 kHz, monolithic synchronous step-down regulator IC DFN8 (4 x 4 mm).

Key Features

  • Step-down current mode PWM regulator.
  • Output voltage adjustable from 0.8 V.
  • Input voltage from 2.5 V up to 18 V.
  • 2% DC output voltage tolerance.
  • Synchronous rectification.
  • Inhibit function.
  • Synchronizable switching frequency from 400 kHz up to 1.2 MHz.
  • Internal soft start.
  • Dynamic short-circuit protection.
  • Typical efficiency: 90%.
  • 3 A output current capability.
  • Standby supply current: max.

More Datasheets from STMicroelectronics

Part Number Description
ST1S12G12R Synchronous rectification
ST1S12G18R Synchronous rectification
ST1S12GR Synchronous rectification
ST1S14 Up to 3A step-down switching regulator
ST1S03 step-down switching regulator
ST1S03A step-down switching regulator
ST1S06 Synchronous rectification
ST1S06A Synchronous rectification
ST1S09 1.5 MHz PWM step-down switching regulator
ST1S30 PWM step-down switching regulator