PMP20657 Reference Design

Texas Instruments

Compact: Efficient Unidirectional 48V to 12V@400W Automotive Power Supply Reference Design

Description

The PMP20657 reference design is a compact: efficient unidirectional 48V to 12V @ 400W power converter. The design is pseudo-isolated to protect 12V loads. The phase-shifted full-bridge topology achieves over 95% peak efficiency. Light-load mode enables <100mW standby power with full regulation on 12V. 300kHz/600kHz switching frequency provides a small solution size.

Features
  • Synchronous rectification and adaptive delays for high peak efficiency300kHz/600kHz switching frequency for 2.5 x 3.5" powertrainPseudo-isolation to protect 12V loadsLow-cost: all ceramic output capacitor solution"
Applications
Product Categories
  • Power management