PMP9756

Step-Down Converter with Cable Voltage Drop Compensation Reference Design

PMP9756

Design files

Overview

This reference design details a power management circuit which is capable to accurately regulate the output voltage at the end of a cable without using sense connections. The implementation is based on a completely integrated step down converter circuit enabling a small total solution while still capable of handling up to 3 A at the output.

Features
  • 1% accurate load regulation without sense connections
  • small solution
  • more than 10W output power possible
  • simple design, small BOM
  • automotive qualified components

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

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

TIDR874.PDF (40 K)

Detailed schematic diagram for design layout and components

TIDR875.PDF (16 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDC508.ZIP (70 K)

Design file that contains information on physical board layer of design PCB

TIDR876.PDF (251 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Buck converters (integrated switch)

TPS621303-17V 3A Step-Down Converter with DCS-Control in 3x3 QFN Package

Data sheet document-pdfAcrobat PDF open-in-new HTML
Current sense amplifiers analog output

INA21326V, bi-directional, high-precision current sense amplifier

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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Type Title Date
Technical article Find your pot of gold—no luck required! Mar. 14, 2016
Technical article Cable voltage drop compensation for backseat USB ports: why does it matter? Sep. 01, 2014
Application note Step-Down Converter with Cable Voltage Drop Compensation Jun. 26, 2014

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