SC4612HMLTRT Просмотр технического описания (PDF) - Semtech Corporation
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SC4612HMLTRT Datasheet PDF : 18 Pages
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SC4612H
40V Synchronous Buck Controller
POWER MANAGEMENT
Features
Wide input voltage range, 4.75V to 40V
Internally regulated DRV
1.7A gate drive capability
Low side RDS-ON sensing with hiccup OCP
Programmable current limit
Programmable frequency up to 1.2 MHz
Overtemperature protected
Pre-bias startup
Reference accuracy ±1%
Available in MLPD-12 4 x 3 and SOIC-14 Pb-free pack-
ages. This product is fully WEEE and RoHS compliant
Applications
Distributed power architectures
Telecommunication equipment
Servers/work stations
Mixed signal applications
Base station power management
Point of use low voltage high current applications
Description
The SC4612H is a high performance synchronous buck
controller that can be configured for a wide range of
applications. The SC4612H utilizes synchronous rectified
buck topology where high efficiency is the primary con-
sideration. SC4612H can be used over a wide input voltage
range with output voltage adjustable within limits set by
the duty cycle boundaries.
SC4612H comes with a rich set of features such as regu-
lated DRV supply, programmable soft-start, high current
gate drivers, shoot through protection, RDS(ON) sensing with
hiccup over current protection.
Typical Application Circuit
March 24, 2009
© 2008 Semtech Corporation
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