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SC1409 - 1 A Synchronous Switching Regulator

General Description

The SC1409 is a versatile, voltage-mode switching regulator designed for use in battery operated power supply applications.

A simple, fixed-voltage buck regulator can be implemented using the SC1409 with a minimum of external components.

Key Features

  • include a temperature compensated voltage reference, triangle wave oscillator, hiccup mode current limit, an internally compensated error amplifier, overcurrent temperature protection, soft start, and under voltage lock out. The SC1409 operates at a selectable, fixed frequency of 300kHz or 500kHz, or can be synchronized to an external clock within this range, providing an optimum compromise between efficiency, external component size, and cost.

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Datasheet Details

Part number SC1409
Manufacturer SEMTECH
File Size 109.17 KB
Description 1 A Synchronous Switching Regulator
Datasheet download datasheet SC1409 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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1 A Synchronous Switching Regulator June 28, 2000 SC1409 TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com DESCRIPTION The SC1409 is a versatile, voltage-mode switching regulator designed for use in battery operated power supply applications. A simple, fixed-voltage buck regulator can be implemented using the SC1409 with a minimum of external components. Internal MOSFETs and control circuitry minimize board space and design time. The small device footprint allows for compact circuit design. SC1409 features include a temperature compensated voltage reference, triangle wave oscillator, hiccup mode current limit, an internally compensated error amplifier, overcurrent temperature protection, soft start, and under voltage lock out.