Datasheet4U Logo Datasheet4U.com

SC1157 - PROGRAMMABLE SYNCHRONOUS DC/DC CONTROLLER FOR ADVANCED PROCESSORS

Description

The SC1157 is a low-cost, full featured, synchronous voltage-mode controller designed for use in single ended power supply applications where efficiency is of primary concern.

Synchronous operation allows for the elimination of heat sinks in many applications.

Features

  • include an integrated 4-bit VID DAC, temperature compensated voltage reference, triangle wave oscillator, current limit comparator, frequency shift over-current protection, and an internally compensated error amplifier. The SC1157 operates at a fixed 140KHz, providing an optimum compromise between efficiency, external component size, and cost.

📥 Download Datasheet

Datasheet Details

Part number SC1157
Manufacturer SEMTECH
File Size 71.42 KB
Description PROGRAMMABLE SYNCHRONOUS DC/DC CONTROLLER FOR ADVANCED PROCESSORS
Datasheet download datasheet SC1157 Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
SC1100 Information Appliance On a Chip National Semiconductor
SC11004 300 / 1200 Bit Per Second Modem ETC
SC11006 2400-Bit Per Second Modem Analog Peripheral Sierra Semiconductor
SC11014 300 / 1200 Bit Per Second Modem ETC
SC11019 (SC11019 - SC11075) 2400 Bps Modem Advances Controller Sierra Semiconductor

Other Datasheets by SEMTECH

Part Number Description
SC1150 PROGRAMMABLE DC/DC CONTROLLER
SC1151 PROGRAMMABLE DC/DC CONTROLLER
SC1152 PROGRAMMABLE SYNCHRONOUS DC/DC CONTROLLER FOR ADVANCED PROCESSORS
SC1153 PROGRAMMABLE SYNCHRONOUS DC/DC CONTROLLER FOR ADVANCED PROCESSORS
SC1154 PROGRAMMABLE SYNCHRONOUS DC/DC HYSTERETIC CONTROLLER FOR ADVANCED PROCESSORS

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.

View original datasheet text
PROGRAMMABLE SYNCHRONOUS DC/DC CONTROLLER FOR ADVANCED PROCESSORS Preliminary - August 7, 2000 SC1157 TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com DESCRIPTION The SC1157 is a low-cost, full featured, synchronous voltage-mode controller designed for use in single ended power supply applications where efficiency is of primary concern. Synchronous operation allows for the elimination of heat sinks in many applications. The SC1157 is ideal for implementing DC/DC converters needed to power advanced microprocessors such as Pentium® ll (Klamath), in both single and multiple processor configurations. Internal level-shift, high-side drive circuitry, and preset shoot-thru control, allows for use of inexpensive n-channel power switches.
Published: |