PMP30805

Tiny automotive SEPIC reference design

PMP30805

Design files

Overview

This tiny automotive SEPIC reference design contains a 6-W auxiliary power supply and is designed for a 12-V bias rail. The wide input accepts cranking down to 4.5 Vmin and surge up to 40 Vmax. Due to switching frequency of 2 MHz, the dual inductor is fairly small, resulting in excellent dynamic behavior. Controller LM5155x-Q1 is cost effective and its housekeeping currents are minimized. The optional input filter attenuates reflected ripple, and the SEPIC topology supports fine EMI behavior by continuous input current.

Features
  • Converter can step up and down the input voltage
  • Operates down to 4.5 V for automotive cranking
  • Cost effective due to 2-layer printed circuit board with single-side assembly
  • Transistor footprint accepts two different packages for more flexibility in transistor choice
Output voltage options PMP30805.1
Vin (Min) (V) 6
Vin (Max) (V) 18
Vout (Nom) (V) 12
Iout (Max) (A) .5
Output Power (W) 6
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Sepic- CCM

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.

TIDT160.PDF (2286 K)

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

TIDM454.PDF (166 K)

Detailed schematic diagram for design layout and components

TIDM455.PDF (174 K)

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

TIDM456.PDF (119 K)

Detailed overview of design layout for component placement

TIDM458.ZIP (515 K)

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

TIDCFS0.ZIP (47 K)

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

TIDM457.PDF (444 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Boost controllers (external switch)

LM51552.2-MHz wide VIN, 1.5-A MOSFET driver, non-synchronous boost controller

Data sheet document-pdfAcrobat PDF open-in-new HTML
Boost controllers (external switch)

LM5155-Q12.2-MHz wide VIN, 1.5-A MOSFET driver, non-synchronous boost controller, AEC-Q100 qualified

Data sheet document-pdfAcrobat PDF open-in-new HTML
Boost controllers (external switch)

LM515512.2-MHz wide VIN nonsynchronous boost, flyback, & SEPIC controller with hiccup

Data sheet document-pdfAcrobat PDF open-in-new HTML
Boost controllers (external switch)

LM51551-Q12.2-MHz wide VIN, 1.5-A MOSFET driver, non-synchronous boost controller, hiccup mode protection

Data sheet document-pdfAcrobat PDF open-in-new HTML
Boost controllers (external switch)

LM51562.2-MHz wide VIN nonsynchronous boost, flyback, & SEPIC controller with dual random spread spectrum

Data sheet document-pdfAcrobat PDF open-in-new HTML
Boost controllers (external switch)

LM5156-Q12.2-MHz wide VIN nonsynchronous boost, flyback, & SEPIC controller with dual random spread spectrum

Data sheet document-pdfAcrobat PDF open-in-new HTML
Boost controllers (external switch)

LM515612.2MHz Wide Input Nonsynchronous Boost,SEPIC,Flyback Controller with Spread Spectrum

Data sheet document-pdfAcrobat PDF open-in-new HTML
Boost controllers (external switch)

LM51561-Q12.2-MHz wide VIN nonsynchronous boost, flyback, & SEPIC controller with spread spectrum and hiccup

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

Technical documentation

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Type Title Date
* Test report Tiny Automotive SEPIC Reference Design Feb. 10, 2020

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