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SC4611 - Wide Input Range High Performance Synchronous Buck Switching Regulator

General Description

SC4611 is a high performance synchronous buck controller that can be configured for a wide range of applications.

The SC4611 utilizes synchronous rectified buck topologies where high efficiency is the primary consideration.

Key Features

  • multi mode overload protection that includes continuous current limiting, hiccup mode followed by latch off. The user has the option of bypassing the hiccup mode and latch off the output if required. SC4611 Features ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ Wide input range, 4.5 to 30V Output voltage as low as 0.5V 2A output drive capability Asynchronous start up mode Multimode overcurrent protection with current limit, hiccup mode and latched shutdown Overvoltage crowbar protection Power OK signal Programmable frequen.

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Datasheet Details

Part number SC4611
Manufacturer SEMTECH
File Size 289.11 KB
Description Wide Input Range High Performance Synchronous Buck Switching Regulator
Datasheet download datasheet SC4611 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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Wide Input Range High Performance Synchronous Buck Switching Regulator POWER MANAGEMENT Description SC4611 is a high performance synchronous buck controller that can be configured for a wide range of applications. The SC4611 utilizes synchronous rectified buck topologies where high efficiency is the primary consideration. It is optimized for applications involving multiple and redundant convertors connected together. The star tup is asynchronous, which keeps the lower side FET off during soft start. This is a desired feature when a convertor is turned on with a preset external voltage or pre-bias voltage www.DataSheet4U.com already present across its output. With the lower FET off, external bus is not discharged which avoids latch-up of modern ASIC circuits.