Products
Power Management
Semtech SC2449
Bi-Phase/Dual Controller
The SC2449 can be configured as a dual converter or a bi-phase converter for high current applications. The part is designed for point of use power supplies with 8.5-28V nominal backplane power sources. Multiple supplies can be synchronized together to prevent low frequency harmonics on the backplane.
Overview
Features
- Selectable dual-input or bi-phase operations
- Direct drive for N-channel MOSFETs
- Under-voltage lockout
- Synchronization to external clock
- Multi-converter synchronization
- Soft start
- Fast transient response
- Max. duty cycle 45%
- Output over-voltage protection
- Thermal shutdown
- 28-Pin SO lead free package available. Fully WEEE and RoHS compliant
Applications
- Power supplies for advanced telecom/datacom
- SO IP, Ethernet, and PABX power supllies
Packaging
SOIC-28-EDP
Order Codes
- SC2449ISWTR: Package Minimum Tape & Reel Only
- SC2449ISWTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
Diagrams and Specs
Block Diagram
Click diagram to enlarge