Products
Power Management
Semtech SC191
Low Supply Ripple Synchronous Buck Conversion Regulator
The SC191 is a synchronous step-down converter with integrated power devices and an integrated front-end LDO regulator to minimize input supply ripple. If supply ripple is not a concern, the front-end LDO regulator can be bypassed externally to maximize efficiency.
Overview
Features
- Less than 1mV Supply Ripple
- 2.7V to 5.5V Input Range
- 330mA Guaranteed Output Current
- Fixed Frequency 1MHz Operation
- No Schottky Diode Required
- Over-Current Protection
- Over-Voltage Protection
- Over-Temperature Protection
- Soft-Start
- No External Compensation Required
- MLPD-8, 2.3mm x 2.3mm Package
- WEEE and RoHS Compliant
Applications
- Cell Phones
- Cordless Phones
- Notebook and Subnotebook Computers
- PDAs and Mobile Communicators
- WLAN Peripherals
- Wireless Modules
- 1 Li-Ion or 3 NiMH/NiCd Powered Devices
Packaging
MLP-8
Order Codes
- SC191AWLTRT: RoHS and WEEE compliant, 3000 pcs. Tape & Reel
Diagrams and Specs
Block Diagram
Click diagram to enlarge