Description
Mobile Multi-Output PWM Controller with Virtual Current SenseTM POWER MANAGEMENT .
The SC1403 is a multiple-output power supply controller designed to power battery operated systems.
Features
* 3.3V and 5V dual synchronous outputs, resistor
programmable to 2.5V Fixed frequency or PSAVE for maximum efficiency over wide load current range 5V / 50mA linear regulator TM Virtual Current Sense for enhanced stability Accurate low loss current limiting Out of phase switchin
Applications
* Notebook and subnotebook computers Automotive electronics The SC1403 includes a PSAVE# input to select pulse Desktop DC-DC converters
Typical Application Circuit
SHDN#
V+ SYNC VL
4
COMP3
COMP5
5
BST3
BST5
DH3 L1 PHASE3 DL3
DH5 L2 PHASE5 DL5 PGND
CSH3 CSL3 FB3
CSH5 CSL5 FB5 SEQ
O