PMP10111

Automotive Low Voltage SEPIC Stage Converts 4V…40Vin to 12Vout@2.5A Reference Design

PMP10111

Design files

Overview

This small SEPIC converter accepts a wide input voltage range, 4V...40V, from automotive battery and supports the cranking phase. Vout is kept stable thank to the SEPIC topology. During cranking the input voltage can reach vaules as low as 4V. Extensive testing with a source generator have been performed.

Features
  • Supports the highly demanding cranking profile by stable 12Vout@2.5A
  • Good efficiency from 9V to 24Vin in the range of 88%...91%
  • Low noise generation thank to a mix of electrolytic capacitor, ferrite bead, and ceramic filter
Output voltage options PMP10111.1
Vin (Min) (V) 4
Vin (Max) (V) 40
Vout (Nom) (V) 12
Iout (Max) (A) 2.5
Output Power (W) 30
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Sepic- CCM
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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.

TIDU906.PDF (850 KB)

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

TIDRE43.PDF (71 KB)

Detailed overview of design layout for component placement

TIDRE42.PDF (106 KB)

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

TIDRE44.ZIP (79 KB)

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

TIDRE45.ZIP (325 KB)

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

TIDCA39.ZIP (187 KB)

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

TIDRE41.PDF (156 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

AC/DC & DC/DC controllers (external FET)

LM34812.97V to 48V High-Efficiency Controller for Boost, SEPIC and Flyback

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Test report PMP10111 Test Results Apr 10, 2015

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