High voltage inverting buck-boost converter reference design for ADAS applications


Design files


This non-isolated design supplies an adjustable output voltage between -150-V and -250-V at 10-mA for LIDAR applications. It operates over an automotive input voltage range of 6-V to 40-V and accepts a control voltage from 0-V to 3-V for output voltage adjustment. Utilizing a single inductor and operating in discontinuous conduction mode (DCM), this converter offers a compact form factor and low cost.

  • Provides an adjustible output voltage from -150 V to -250 V
  • Achieves an efficiency of greater than 70% over all outputs (12-V input, 10-mA output)
  • Implements an inverting buck-boost with voltage doubler topology
  • Utilizes a single standard inductor
  • Achieves a Vout/Vin ratio of greater than 40 in a compact size (31 mm x 55 mm)
Output voltage options PMP22155.1
Vin (Min) (V) 6
Vin (Max) (V) 40
Vout (Nom) (V) -250
Iout (Max) (A) .01
Output Power (W) 2.5
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Buck Boost- Inverting

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.

TIDT152.PDF (4410 K)

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

TIDM405.PDF (150 K)

Detailed schematic diagram for design layout and components

TIDM406.PDF (137 K)

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

TIDM407.PDF (114 K)

Detailed overview of design layout for component placement

TIDM409.ZIP (723 K)

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


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

TIDM408.PDF (1658 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

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
General-purpose op amps

TLV314-Q1Automotive-grade, single, 5.5-V, 3-MHz, low quiescent current (65-μA), RRIO operational amplifier

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

Technical documentation

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Type Title Date
* Test report High Voltage Inverting Buck-Boost Converter Reference Design for ADAS Apps Jan. 07, 2020

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