Dual Output Rail Power Supply with Inverting Buck Boost Converter Reference Design


Design files


PMP10090.1 shows a power supply, which provides a positive and a negative voltage rail in an inverting Buck Boost configuration. A 12V input is converted to 15V and -15V output voltages with 700mA load current each. 

  • Built and tested
  • Simple solution for dual rail output voltage
  • Perfect for supplying OpAmps
Output voltage options PMP10090.1 PMP10090.2
Vin (Min) (V) 10 10
Vin (Max) (V) 14 14
Vout (Nom) (V) 15 -15
Iout (Max) (A) .7 .7
Output Power (W) 10.5 10.5
Isolated/Non-Isolated Non-Isolated Non-Isolated
Input Type DC DC
Topology Buck Boost- Inverting Buck Boost- Inverting
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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.

TIDU972.PDF (978 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

TIDCA98.ZIP (20 K)

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


Includes TI products in the design and potential alternatives.

AC/DC & DC/DC converters (integrated FET)

TPS5434042 V Input, 3.5 A, Step-Down DC/DC Converter with Eco-mode™

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Test report PMP10090 Test Results Apr. 29, 2015

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