Low Power TEC Driver Reference Design


Design files


This reference design details a power management circuit which is capable to source and sink current for driving a thermoelectric cooler (TEC) to control the temperature of sensitive devices, like laser diodes or sensors. It supports a small solution based on a completely integrated buck boost converter requiring only a few external components. With a simple high impedance analog voltage input to control the current flowing through the TEC it can be used as a power solution for a microcontroller based temperature control system.

  • Source and sink current capability to drive a TEC
  • More than 1.5 A source current possible
  • High impedance analog control input
  • Less than 180 mm² required for the complete power solution
  • Simple design, small BOM
  • More than 90% efficiency over a wide operating range
Output voltage options PMP9759.1
Vin (Min) (V) 3
Vin (Max) (V) 3.6
Vout (Nom) (V) 5.5
Iout (Max) (A) 2
Output Power (W) 11
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Buck Boost- Integrated Switch

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.

TIDRC95.PDF (33 K)

Detailed schematic diagram for design layout and components

TIDRC96.PDF (20 K)

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

TIDC829.ZIP (476 K)

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

TIDRC97.PDF (44 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Buck-boost, inverting & split-rail converters (integrated switch)

TPS63020High Efficiency Single Inductor Buck-Boost Converter with 4A Switch

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

Technical documentation

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Type Title Date
Technical article Simple circuit drives TECs Jul. 13, 2015
Application note Low-power TEC driver Nov. 18, 2014

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