PMP7979

12Vin to 67Vin, 54Vout at 4.8A, 260W Dual-Phase Boost Reference Design

PMP7979

Design files

Overview

PMP7979 is a synchronous dual-phase boost power supply using the LM5122 controllers. The design accepts an input voltage of 12 V to 67 V, and boosts a 54-V output rail that is capable of sourcing 4.8-A continuous current. The LM5122 has an internal current source to keep the high-side FET to run at 100% duty cycle, which allows a bypass operation when the input voltage is greater than the configured output voltage.

Features
  • 12 Vin to 67 Vin, 54 Vout at 5-A out; IC capable of 4.5 Vin to 65 Vin
  • 260-W Pout
  • Peak efficiency at 98%
  • Switching frequency 100 kHz per phase (200 kHz)
  • Board size: 4 in x 3 in
Output voltage options PMP7979.1
Vin (Min) (V) 12
Vin (Max) (V) 67
Vout (Nom) (V) 54
Iout (Max) (A) 4.8
Output Power (W) 259.2
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Boost- Multiphase
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDUBK0.PDF (1119 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

TIDRKL9.PDF (485 K)

Detailed schematic diagram for design layout and components

TIDRKM1.PDF (124 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRKM2.PDF (144 K)

Detailed overview of design layout for component placement

TIDRKM4.ZIP (556 K)

Files used for 3D models or 2D drawings of IC components

TIDCBV6.ZIP (250 K)

Design file that contains information on physical board layer of design PCB

TIDRKM3.PDF (611 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Boost controllers (external switch)

LM51223-65V Wide Vin, Current Mode Synchronous Boost Controller with Multiphase Capability

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Test report PMP7979 Test Results Mar. 07, 2016

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