Products
Power Management
Semtech SC4508A
Buck or Buck-Boost (Inverting) Current-Mode Controller
The SC4508A 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) converters.
Overview
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
- Hiccup mode after 32 cycle-by-cycle OCP
- 4mm x 4mm MLPQ-12 lead free package. This product is fully WEEE and RoHS compliant
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
Packaging
MLPQ-12
Order Codes
- SC4508AMLTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
- SC4508ABUCKEVB: SC4508A Evaluation Board
- SC4508ABUCK-BOOSTEVB: SC4508A Evaluation Board
Diagrams and Specs
Block Diagram
Click diagram to enlarge