SC4508IMLTRT 数据手册 ( 数据表 ) - Semtech Corporation

Description
The SC4508 is a low voltage current mode switching regulator controller that drives a P-channel power MOSFET
with programmable switching frequency. It can be configured in either buck or buck boost (inverting) convert
ers. The converters can be operated from 2.7V to 15V input voltage range.

FEATUREs
Wide input voltage range 2.7V to 15V
Programmable output voltage
Programmable switching frequency up to 1.5MHz
Buck or buck boost(inverting) configuration
Current mode control with slope compensation
Very low quiescent current in shutdown mode
Accessible reference voltage
MLPQ-12 package

APPLICATIONs
Low power point of use converters
Single or multiple output low power converters
Positive and/or negative output voltage
DSL cards
Graphic cards
I/O cards
Negative bias supplies