Low Cost LCD Bias Supply Reference Design


Design files


This design provides, with only one switcher and a coupled inductor, four output voltages for biasing a liquid crystal display. The topology is a Sepic with stacked windings, which offers good performance and low EMI.

  • Low cost
  • Good performance
Output voltage options PMP10051.1 PMP10051.2 PMP10051.3 PMP10051.4
Vin (Min) (V) 3 3 3 3
Vin (Max) (V) 13.2 13.2 13.2 13.2
Vout (Nom) (V) -6.6 14 -12 6.6
Iout (Max) (A) .1 .001 .001 .1
Output Power (W) .66 .014 .012 .66
Isolated/Non-Isolated Non-Isolated Non-Isolated Non-Isolated Non-Isolated
Input Type DC DC DC DC
Topology Sepic- Integrated Switch Sepic- Integrated Switch Sepic- Integrated Switch Sepic- Integrated Switch
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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.

TIDU653.PDF (369 K)

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


Detailed schematic diagram for design layout and components


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


Detailed overview of design layout for component placement

TIDC767.ZIP (30 K)

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


Includes TI products in the design and potential alternatives.

Boost converters (integrated switch)

TPS611753-A ,40V High Voltage Boost Converter with Soft-start and Programmable Switching Frequency

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Test report PMP10051 Test Results Nov. 20, 2014

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