Datasheet4U Logo Datasheet4U.com

SC191 - Low Supply Ripple Synchronous Buck Conversion Regulator

Datasheet Summary

Description

The SC191 is a synchronous step-down converter with integrated power devices and an integrated front-end LDO regulator to minimize input supply ripple.

If supply ripple is not a concern, the front-end LDO regulator can be bypassed externally to maximize efficiency.

Features

  • include internal soft-start to limit inrush current, over-current protection, over-temperature protection, and over-voltage protection. The 1MHz switching frequency allows the use of small surface mount capacitors and inductors, and no other external compensation components are needed. The device is available in a low profile (0.8mm max height) 2.3mm x 2.3mm MLPD 8-lead package, minimizing area without compromising performance. SC191 Features ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ Less than 1mV Supply Ripple.

📥 Download Datasheet

Datasheet preview – SC191

Datasheet Details

Part number SC191
Manufacturer Semtech
File Size 427.94 KB
Description Low Supply Ripple Synchronous Buck Conversion Regulator
Datasheet download datasheet SC191 Datasheet
Additional preview pages of the SC191 datasheet.

📁 Similar Datasheet

  • SC1933C - Off-Line CV/CC QR Flyback Switcher (Power Integrations)
  • SC1936C - Off-Line CV/CC QR Flyback Switcher (Power Integrations)
  • SC1968 - NPN EPITAXIAL PLANAR TYPE (Mitsubishi Electric Semiconductor)
  • SC1972 - 2SC1972 (Mitsubishi Electric Semiconductor)
  • SC10-21SRWA - Single Digit Numeric Display (Kingbright)
  • SC10-S-DC12V - PCB Relay (LEONE)
  • SC10-S-DC24V - PCB Relay (LEONE)
  • SC10-S-DC6V - PCB Relay (LEONE)
  • SC1001 - EL LAMP DRIVER IC (FUMAN ELECTRONICS)
  • SC1001A - 10 CHARACTERS x 1 LINES DISPLAY (ETC)
Other Datasheets by Semtech
  • SC190 - Synchronous Buck Converter
  • SC192 - Synchronous Buck Converter
  • SC194A - 1A Synchronous Buck Converter
  • SC194B - Selectable 3.6V/3.3V/3.0V/2.5V 1A Synchronous Buck Converter
  • SC195 - 500mA Synchronous Step Down DC-DC Regulator
  • SC195B - 500mA Synchronous Step Down DC-DC Regulator
  • SC195F - 500mA Synchronous Step Down DC-DC Regulator
  • SC196 - 1.5A Synchronous Buck Converter

Full PDF Text Transcription

Click to expand full text
Low Supply Ripple Synchronous www.DataSheet4U.com Buck Conversion Regulator POWER MANAGEMENT Description The SC191 is a synchronous step-down converter with integrated power devices and an integrated front-end LDO regulator to minimize input supply ripple. If supply ripple is not a concern, the front-end LDO regulator can be bypassed externally to maximize efficiency. The internal MOSFET switches provide peak current greater than 550mA to achieve a DC output of at least 330mA over the rated input voltage range, making the SC191 ideal for single-cell Li-ion battery applications as well as fixed 3.3V and 5V fixed input applications. The output is a fixed 1.2V - ideal for low-voltage microprocessors. Other voltage options are available (consult the factory for details).
Published: |