SC4502HEVB中文資料SEMTECH數(shù)據(jù)手冊PDF規(guī)格書

Description

The SC4502/SC4502H is a high-frequency current-mode step-up switching regulator with an integrated 1.4A

power transistor. Its high switching frequency (program mable up to 2MHz) allows the use of tiny surface-mount

external passive components.

Features

?Low saturation voltage switch: 210mV (250mV for the SC4502H)

?Constant switching frequency current-mode control

?Programmable switching frequency up to 2MHz

?Soft-Start function

?Input voltage ranges from 1.4V to 16V

?Output voltage up to 32V (40V for the SC4502H)

?Low shutdown current

?Adjustable undervoltage lockout threshold

?Small low-profile thermally enhanced lead free package. This product is fully WEEE and RoHS compliant.

Applications

?Flat screen LCD bias supplies

?TFT bias supplies

?XDSL power supplies

?Medical equipment

?Digital video cameras

?Portables devices

?White LED power supplies