24V, 300W Sync-Buck Reference Design
PMP30189
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Description & Features

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Key Document

Description

The PMP30189 reference design is based on the LM5117 sync buck converter; it supplies 24V @ 11A and it is protected against overcurrent at 13.9A. 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. 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 power (264W), high-efficiency (98.4% @ 27 Vin) 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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Parametrics
 PMP30189.1
(Output Voltage 1)
Vin (Min) (V)27
Vin (Max) (V)29
Vout (Nom) (V)24
Iout (Max) (A)11
Output Power (W)264
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 ch NexFET MOSFET™, single SON5x6, 5.9mOhm  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

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User guides (1)
Title Type Size (KB) Date
PDF 1133 17 Nov 2017
Design files (6)
Title Type Size (KB) Date
ZIP 51 17 Nov 2017
ZIP 915 17 Nov 2017
PDF 783 17 Nov 2017
PDF 314 17 Nov 2017
PDF 105 17 Nov 2017
PDF 194 17 Nov 2017

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