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ST1S30 Datasheet PWM step-down switching regulator

Manufacturer: STMicroelectronics

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General Description

The ST1S30 is a step-down DC-DC converter optimized for powering low output voltage applications.

It supplies a current in excess of 3 A over an input voltage range from 2.7 V to 6 V.

A high PWM switching frequency (1.5 MHz) allows the use of tiny surface-mount components.

Overview

ST1S30 3 A, 1.5 MHz PWM step-down switching regulator with synchronous rectification Datasheet - production data DFN8 (4 x 4.

Key Features

  • 1.5 MHz fixed frequency PWM with current control mode.
  • 3 A output current capability.
  • Typical efficiency: > 90%.
  • 2 % DC output voltage tolerance.
  • Two versions available: power good or inhibit.
  • Integrated output over-voltage protection.
  • Non switching quiescent current: (typ. ) 1.5 mA over temperature range.
  • RDSon (typ. ) 100 mΩ.
  • Utilizes tiny capacitors and inductors.
  • Operating junction temp. -25 °C to 125 °C.

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