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SC4611

Semtech Corporation
Part Number SC4611
Manufacturer Semtech Corporation
Description Wide Input Range High Performance Synchronous Buck Switching Regulator
Published Nov 17, 2008
Detailed Description Wide Input Range High Performance Synchronous Buck Switching Regulator POWER MANAGEMENT Description SC4611 is a high per...
Datasheet PDF File SC4611 PDF File

SC4611
SC4611

Overview
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.
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com already present across its output.
With the lower FET off, external bus is not discharged which avoids latch-up of modern ASIC circuits.
Vcc supply, soft start, power-good signaling, high current gate drivers, bootstrapped supply for driving high side Nchannel MOSFETs, shoot through protection, frequency synchronization and the option for overvoltage crowbar.
It als...


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