48V Input Synchronous Buck to 24V@12A (15A pk) Converter Reference Design

(ACTIVE) PMP11494

Description & Features

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Key Document

Description

This synchronous buck converter operates over a 45V - 51V input range and delivers 24V @ 12A continuous (15A peak, 1 second). This converter is very efficient; achieving greater than 98% between 5.5A - 15A. The high efficiency helps reduce component temperature rise, improving operational life. Low output and input ripple voltage reduce conducted noise.

Features
  • Efficiency greater than 98%
  • High output power of 360W (24V @ 15A)
  • Low component temperature rise
  • Excellent transient response

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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
 PMP11494.1
(Output Voltage 1)
Vin (Min) (V)45
Vin (Max) (V)51
Vout (Nom) (V)24
Iout (Max) (A)15
Output Power (W)360
Isolated/Non-IsolatedNon-Isolated
Input TypeDC
TopologyBuck- Synchronous

TI Devices (3)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD19532Q5B  100V, 4.0 mOhm, SON5x6 N-Channel NexFET™ Power MOSFET  MOSFETs  Sample & Buy View Design Kits & Evaluation Modules
CSD19534Q5A  100V, N-Channel NexFET Power MOSFET  MOSFETs  Sample & Buy Not Available
TPS40170  4.5 V to 60 V Wide-Input Synchronous PWM Buck Controller  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD19534Q5A VSONP (DQJ)| 8 Download
TPS40170 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 Views TI Recommends
PDF 1032 10 Feb 2016 22
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 328 10 Feb 2016 10
ZIP 26132 10 Feb 2016 5
PDF 318 10 Feb 2016 6
PDF 57 10 Feb 2016 6
PDF 127 10 Feb 2016 9
PDF 126 10 Feb 2016 24

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