40-V to 80-V adjustable output voltage boost reference design for LIDAR applications
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Key Document


This reference design utilizes a non-synchronous boost controller to provide an adjustable output of between 40 V and 80 V capable of delivering a maximum of 100 mA of current to the load. This is an automotive design intended to power various applications such as LiDAR systems, which require an adjustable voltage supply.

  • Easy to configure adjustable output
  • High power density
  • Wide output range with stable loop response
  • Low BOM cost

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Design Files

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(Output Voltage 1)
(Output Voltage 2)
Vin (Min) (V)66
Vin (Max) (V)2727
Vout (Nom) (V)4080
Iout (Max) (A).1.1
Output Power (W)48
Input TypeDCDC
TopologyBoost- Non SyncBoost- Non Sync

TI Devices (3)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
DAC121S101-Q1  12-Bit Micro Power, RRO Digital-to-Analog Converter  Digital-to-analog converters (DACs)  Sample & Buy Not Available
LM4120  1.2-V & adjutable, 0.2% 50-ppm/°C drift precision series voltage reference with enable pin  Voltage references  Sample & Buy Not Available
LM51551-Q1  2.2MHz wide VIN non-synchronous boost/SEPIC/flyback controller  Step-up (boost) regulators  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
DAC121S101-Q1 Download Download
LM4120 Download Download
LM51551-Q1 Download

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Technical documentation

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User guides (1)
Title Type Size (KB) Date
PDF 3836 07 Jan 2020
Design files (6)
Title Type Size (KB) Date
ZIP 494 07 Jan 2020
ZIP 516 07 Jan 2020
PDF 508 07 Jan 2020
PDF 149 07 Jan 2020
PDF 134 07 Jan 2020
PDF 195 07 Jan 2020

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