PMP8921

12V@4A Sync Boost Converter Operating from Single or Dual Li-Ion Batteries Reference Design

PMP8921

Design files

Overview

This synchronous boost converter efficiently operates from 3.0V - 8.6V (one or two Li-Ion cells) and regulates a 12V@4A output. Efficiency of greater than 97% is achieved when running from two cells.

Output voltage options PMP8921.1
Vin (Min) (V) 3
Vin (Max) (V) 8.6
Vout (Nom) (V) 12
Iout (Max) (A) 4
Output Power (W) 48
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Boost- CCM^Buck- Synchronous
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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.

SLVU909.PDF (1858 K)

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

SLVRB63.PDF (130 K)

Detailed schematic diagram for design layout and components

SLVRB64.PDF (18 K)

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

SLVA591.PDF (82 K)

Detailed overview of design layout for component placement

Products

Includes TI products in the design and potential alternatives.

Boost controllers (external switch)

TPS43061Low Iq, Synchronous Boost Controller with Wide Input Voltage and 5.5V Gate Drive for Low Qg NexFETs

Data sheet: PDF | HTML
Buck-boost, inverting & split-rail converters (integrated switch)

TPS630612.5V to 12V input voltage, 93% Efficient, 2.25A Switch Current Limit, Buck-Boost Converter

Data sheet: PDF | HTML
N-channel MOSFETs

CSD17311Q530-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 2.3 mOhm

Data sheet: PDF

Technical documentation

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Type Title Date
Test report PMP8921 Test Results Apr. 15, 2013

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