5V 45A Dual Phase Synchronous Buck Reference Design
PMP20516
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Description & Features

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Key Document

Description

This is a synchronous buck reference design that uses TPS40322 in a dual phase topology. It is meant for 12V nominal input voltage and outputs 5V and is capable of providing up to 45A combined on both phases with excellent current sharing. The full load efficiency is 96.7% which provides great thermal performance as well as ripple and transient performance.

Features
  • Over 96.7% efficient at full load
  • Excellent thermal, ripple and transient performance
  • Small solution size
  • Low cost design

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Schematic/Block Diagram

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Design Guide

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Design Files

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Parametrics
 PMP20516.1
(Output Voltage 1)
Vin (Min) (V)10.8
Vin (Max) (V)13.2
Vout (Nom) (V)5
Iout (Max) (A)45
Output Power (W)225
Isolated/Non-IsolatedNon-Isolated
Input TypeDC
TopologyBuck- Synchronous

TI Devices (2)

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
CSD87353Q5D  30V, Nch synchronous buck NexFET MOSFETâ„¢, SON5x6 PowerBlock, 40A  MOSFETs  Sample & Buy Not Available
TPS40322  Dual Output or Two-phase Synchronous Buck Controller  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD87353Q5D LSON-CLIP (DQY)| 8 Download Download
TPS40322 Download Download

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Technical documentation

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User guides (1)
Title Type Size (KB) Date
PDF 1435 21 Dec 2017
Design files (6)
Title Type Size (KB) Date
ZIP 508 21 Dec 2017
ZIP 222 21 Dec 2017
PDF 48 21 Dec 2017
PDF 48 21 Dec 2017
PDF 65 21 Dec 2017
PDF 130 21 Dec 2017

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