12V, 80W Sync-Buck Reference Design

(ACTIVE) PMP30301

Description & Features

Technical Documents

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Key Document

Description

The PMP30301 reference design is based on the LM5117 sync buck converter; it supplies 12V @ 6.5A and it is protected against overcurrent at 7.4A. 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-Q1. 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 efficiency (96.8% @ 27Vin) sync-buck
  • Precision output overcurrent and overvoltage protection
  • Selectable latching/non-latching overcurrent protection
  • Tracking input + switching frequency selection

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Schematic/Block Diagram

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Design Guide

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Design Files

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Bill of Materials (BOM)

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Parametrics
 PMP30301.1
(Output Voltage 1)
Vin (Min) (V)27
Vin (Max) (V)29
Vout (Nom) (V)12
Iout (Max) (A)6.5
Output Power (W)78
Isolated/Non-IsolatedNon-Isolated
Input TypeDC
TopologyBuck- Synchronous

TI Devices (4)

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
CSD18533Q5A  60V N-Channel NexFET Power MOSFET  MOSFETs  Sample & Buy View Design Kits & Evaluation Modules
LM2903V  Dual Differential Comparator, Enhanced Voltage  Amplifiers  Sample & Buy Not Available
LM5117-Q1  Automotive Grade 5.5-65V Wide Vin, Current Mode Synchronous Buck Controller w Analog Current Monitor  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
TL431  Adjustable precision shunt regulator  Voltage references  Sample & Buy Not Available

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD18533Q5A VSONP (DQJ)| 8 Download
LM2903V Download -
Download Download
LM5117-Q1 Download Download
Download
TL431 Download Download
Download Download
Download -
Download Download
Download Download
Download Download
Download Download
Download -
Download Download

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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
PDF 1218 01 Dec 2017
Design files (6)
Title Abstract Type Size (KB) Date
ZIP 54 01 Dec 2017
ZIP 908 01 Dec 2017
PDF 815 01 Dec 2017
PDF 347 01 Dec 2017
PDF 105 01 Dec 2017
PDF 183 01 Dec 2017

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