This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
5.5-65V Wide Vin, Current Mode Dual Synchronous Buck Controller


Models (2)

Title Category Type Date
LM5119 Unencrypted PSpice Transient Model PSpice Model ZIP 30 Mar 2015
LM5119 PSpice Transient Model PSpice Model ZIP 11 Apr 2013

Design kits & evaluation modules (1)

Name Part# Type
Evaluation Board for the LM5119 Wide Vin Dual Synchronous Buck Controller LM5119EVAL Evaluation Modules & Boards

Reference designs

96-W/180-W peak dual interleaved buck converter reference design for space constrained applications

This is a dual, interleaved buck converter reference design, which covers an input voltage range of 17.0 V to 60.0 V. The output voltage is 12.0 V with a maximum load current of 15.0 A. The design has been space optimized and supports an average load current of 8.0 A.

View the Important Notice for reference designs covering authorized use, intellectual property matters and disclaimers.

Description Part Number Company Tool Type
12V/400W Dual-Phase 1/4 Brick Buck Converter Reference Design Delivers 97% Peak Efficiency PMP7819 Texas Instruments Reference designs
33Vin to 60Vin; 12Vout @ 30A; Dual-Phase Synchronous Buck Converter PMP7990 Texas Instruments Reference designs
Dual Phase Synchronous Buck PMP7884 Texas Instruments Reference designs
Dual Phase Synchronous Buck (30Vout@10A) PMP7885 Texas Instruments Reference designs

Development tools (1)

Name Part# Type
LM(2)5119 Quick Start Calculator LM25119-5119QUICK-CALC Calculation Tools
WEBENCH® Power Designer is now even easier to use. Try it now.

WEBENCH® Designer LM5119

Product Option
  Min   Max Range
Vin  V 4.5 to 42V
Vout  V 0.8 to 41V
Iout  A 0 to 40A
Vout 2  V 0.8 to 41V
Iout 2  A 0 to 40A
Ambient Temp  °C -40 to 125°C