4-Phase, 160-A synchronous buck converter reference design for communications processor power
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.

Description & Features

Technical Documents

Support & Training

Order Now

See the Important Notice and Disclaimer covering reference designs and other TI resources.

Key Document


This reference design uses four TPS546D24A converters with integrated MOSFETs to support a full load of 160A at a 0.9V output. The system operates at a switching frequency of 650 kHz and has a PMBus interface that can be used to configure key converter parameters, including internal compensation. The detailed test report includes efficiency, thermal, stability, and load transient results.

  • 12V input, 0.9V output with full load of 160A
  • Very good output voltage regulation accuracy of 0.11% 
  • Accurate load sharing between 4 integrated converters
  • Fixed-frequency current-mode control and programmable internal compensation
  • PMBus interface for configuration and monitoring of key converter parameters
  • Designed for communications base-band and remote radio units

See the Important Notice and Disclaimer covering reference designs and other TI resources.


Schematic/Block Diagram

Quickly understand overall system functionality.

Download Schematic

Design Guide

Get results faster with test and simulation data that's been verified.

Download Design Guide

Design Files

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

Download Design Files

(Output Voltage 1)
Vin (Min) (V)9
Vin (Max) (V)13
Vout (Nom) (V).9
Iout (Max) (A)160
Output Power (W)144
Input TypeDC
TopologyBuck- Multiphase

TI Devices (3)

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
CSD16408Q5  25V, N ch NexFET MOSFET™, single SON5x6, 6.8mOhm  MOSFETs  Sample & Buy Not Available
TPS546D24A  2.95-V to 16-V input, stackable 40-A, SWIFT™ synchronous buck converter with pin-strapping/PMBus®  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
TPS82130  3-A 17V Step-down Converter Module with Integrated Inductor  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD16408Q5 Download Download
TPS546D24A Download Download
TPS82130 uSiP (SIL)| 8 Download Download

Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.

Step 1: Download and install the free download.

Step 2: Download the Symbol and Footprint from the CAD.bxl file table.

Technical Documents

See the Important Notice and Disclaimer covering reference designs and other TI resources.

User guides (1)
Title Type Size (KB) Date
PDF 1830 24 Oct 2019
Design files (6)
Title Type Size (KB) Date
ZIP 1921 24 Oct 2019
PDF 340 24 Oct 2019
PDF 102 24 Oct 2019
PDF 391 24 Oct 2019
ZIP 880 01 Mar 2019
PDF 1771 01 Mar 2019

Support & training

Search our extensive online knowledge base where millions of technical questions and answers are available 24/7.

Search answers from TI experts

Content is provided 'AS IS' by the respective TI and Community contributors and does not constitute TI specifications.
See terms of use.

If you have questions about quality, packaging, or ordering TI products visit our Support page.

Technical articles