PMP30473

Lowest noise auxiliary dual output power supply reference design

PMP30473

Design files

Overview

This reference design is a 2 x 1-W inverting buck boost converter. The two output voltages (+5 V and -5 V) are produced from one single buck silicon (TPS57160-Q1). Post regulators (and post filters) ensure ripple free output voltages. Input voltage range covers automotive and industrial applications. 

Features
  • Input filter ensures lowest reflected ripple
  • Power stage withstands surge voltages up to 42 V
  • Circuit tolerates cranking down to 4 V
  • Temperature rise is less than 20 K at full load and with nominal automotive input voltage
Output voltage options PMP30473.1 PMP30473.2
Vin (Min) (V) 4 4
Vin (Max) (V) 42 42
Vout (Nom) (V) 5 -5
Iout (Max) (A) .2 .2
Output Power (W) 1 1
Isolated/Non-Isolated Non-Isolated Non-Isolated
Input Type DC DC
Topology Buck Boost- Inverting^Buck Boost- Non Sync Buck Boost- Inverting^Buck Boost- Non Sync

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.

TIDT022.PDF (3383 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

TIDM219.PDF (101 K)

Detailed schematic diagram for design layout and components

TIDM220.PDF (136 K)

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

TIDM221.PDF (95 K)

Detailed overview of design layout for component placement

TIDM223.ZIP (577 K)

Files used for 3D models or 2D drawings of IC components

TIDCFN0.ZIP (22 K)

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

TIDM222.PDF (421 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)

TPS57160-Q1Automotive 3.5V to 60V, 1.5A Buck Converter with Eco-Mode™

Data sheet document-pdfAcrobat PDF open-in-new HTML
Linear & low-dropout (LDO) regulators

TPS723-Q1Automotive 200-mA, negative, adjustable low-dropout voltage regulator with enable

Data sheet document-pdfAcrobat PDF open-in-new HTML
Linear & low-dropout (LDO) regulators

TPS799-Q1Automotive 200-mA, low-IQ, low-dropout voltage regulator with enable

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

Technical documentation

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Type Title Date
* Test report Lowest Noise Auxiliary Dual Output Power Supply Reference Design Sep. 26, 2019

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