PMP30189 Reference Design

Texas Instruments

24V: 300W Sync-Buck Reference Design

Description

The PMP30189 reference design is based on the LM5117 sync buck converter; it supplies 24V @ 11A and it is protected against overcurrent at 13.9A. The internal bias can be supplied internally by means of internal linear regulator: or externally by BJT and Zener diode: thus reducing power dissipation in LM5117. Also the switching frequency is selectable between 100 KHz and 250 KHz. An external tracking input can be used to perform sequencing and soft start tracking. It features also output overvoltage protection with latch.

Features
  • High power (264W): high-efficiency (98.4% @ 27 Vin) sync-buckPrecision output overcurrent and overvoltage protectionSelectable latching/non-latching overcurrent protectionTracking input + switching frequency selection
Applications
Product Categories
  • Power management