12V/400W Dual-Phase 1/4 Brick Buck Converter Reference Design Delivers 97% Peak Efficiency

(ACTIVE) PMP7819

Description & Features

Technical Documents

Support & Training

Order Now


View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


Description

This 400W ¼ brick DC/DC converter leverages the LM5119’s dual-phase capability to drive a 33A load in an industry-standard ¼ brick module footprint. This compact design delivers 97% peak efficiency while maintaining balanced current through each phase, which reduces thermal stress and enables lower system cost by eliminating the need to over-design the surrounding power components.

Features
  • Greater than 94% efficiency
  • Switching frequency 100 kHz
  • Input range 33V to 60V maximum
  • Output voltage of 12V at 33A
  • Standard ¼ brick footprint (2.3" x 1.45")
  • This end-equipment design is production-ready and supported with design files and an application note

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  




Parametrics
 PMP7819.1
(Output Voltage 1)
Vin (Min) (V)33
Vin (Max) (V)60
Vout (Nom) (V)12
Iout (Max) (A)33
Output Power (W)396
Isolated/Non-IsolatedNon-Isolated
Input TypeDC
TopologyBuck- Synchronous

TI Devices (1)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LM5119  5.5-65V Wide Vin, Current Mode Dual Synchronous Buck Controller  Step-Down (Buck)  Sample & Buy View Design Kits & Evaluation Modules

Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views
PDF 798 14 Dec 2012 40
Design files (3)
Title Abstract Type Size (KB) Date Views
ZIP 229 12 Jul 2013 22
PDF 108 18 Jan 2013 110
PDF 267 14 Dec 2012 70


Support & Training

TI E2E Community

As a member of  myTI you can join the TI E2E™ Community  where you can ask questions, share ideas and collaborate with fellow engineers and TI experts

Content is provided "AS IS" by the respective TI and Community contributors and does not constitute TI specifications. See  Terms of use.

Engage in the Community

Blogs

Wikis

Visit the TI Wiki