ST1S03 - step-down switching regulator

Description

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.

Features

Step-down current mode PWM (1.5 MHz) DC-DC converter.
2% DC output voltage tolerance.
Internal soft-start for.

STMicroelectronics

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Datasheet Details

Part number	ST1S03
Manufacturer	STMicroelectronics
File Size	596.11 KB
Description	step-down switching regulator
Datasheet	ST1S03 Datasheet

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Full PDF Text Transcription

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ST1S03 1.5 A, 1.5 MHz adjustable, step-down switching regulator DFN6D (3 x 3 mm) 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 switching quiescent current: max 2.5 mA over temperature range  Switch VDS: max.

Published: Jan 12, 2009 |