61W Automotive Dual Output Synchronous Buck Converter Reference Design
PMP10655
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.

Description & Features

Technical documentation

Support & Training

Order Now


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

Key Document

Description

PMP10655 is a dual-output synchronous buck converter reference design using the LM5140 controller IC. The reference design accepts an input voltage between 6Vin and 18Vin and is capable of supplying a maximum of 8A of continuous current (14A Peak) to the load, per output. Vout1 and Vout2 maintain regulation during cold-crank (Vin dip to 4.3Vin) and load-dump (Vin peak to 42Vin) conditions. Switching of the two converters are 180 degrees out of phase between each other.  The design also features the LM5050-1 OR-ing controller configured for efficient reverse polarity protection of the input.  PMP10655 is built on a 4-layer FR-4 PCB, with 2 oz. Copper on the Top and Bottom layers, and 1 oz. Copper on the two internal layers.

Features
  • 2.2MHz switching to bypass AM band
  • Front-end high-efficiency reverse polarity protection
  • Smooth switching frequency foldback when in dropout
  • High-side and low-side gate drives with indepdendent rising and falling slew-rate control

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


Parametrics
 PMP10655.1
(Output Voltage 1)
PMP10655.2
(Output Voltage 2)
Vin (Min) (V)66
Vin (Max) (V)1818
Vout (Nom) (V)3.83.8
Iout (Max) (A)88
Output Power (W)30.430.4
Isolated/Non-IsolatedNon-IsolatedNon-Isolated
Input TypeDCDC
TopologyBuck- SynchronousBuck- 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
LM5050-1-Q1  5-V to 75-V, 400-uA IQ automotive ideal diode controller  Power switches  Sample & Buy View Design Kits & Evaluation Modules
LM5140-Q1  Wide Vin Dual 2.2MHz low Iq 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)
LM5050-1-Q1 Download Download
LM5140-Q1 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 documentation

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

User guides (1)
Title Type Size (KB) Date
PDF 1061 06 Dec 2017
Design files (6)
Title Type Size (KB) Date
ZIP 414 06 Dec 2017
ZIP 1372 06 Dec 2017
PDF 1396 06 Dec 2017
PDF 165 06 Dec 2017
PDF 103 06 Dec 2017
PDF 346 06 Dec 2017

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