Automotive ADAS camera power supply reference design optimized for solution size and low noise


Design files


This wide-input power-supply reference design is specifically designed for space-constrained automotive ADAS camera applications. This size-optimized design uses front-end protection paired with a wide input voltage DC/DC converter to enable off-battery operation. The front-end filter and component selection are optimized to comply with stringent CISPR 25 class 5 conducted electromagnetic interference (EMI) standards.

  • No additional components required for direct connection to battery
  • Overall solution size of 1272 mm2 for ADAS camera modules
  • Wide 4-V to 36-V input range supports start-stop and load dump operation
  • Designed to protect against reverse battery condition
  • Tested against CISPR 25 class 5 conducted EMI standards
Output voltage options TIDA-050015.1 TIDA-050015.2 TIDA-050015.3 TIDA-050015.4 TIDA-050015.5
Vin (Min) (V) 3.8 3.8 3.8 3.8 3.8
Vin (Max) (V) 36 36 36 36 36
Vout (Nom) (V) 3.3 5 1.1 1.8 2.8
Iout (Max) (A) 1 .1 .4 .25 .25
Output Power (W) 3.3 .5 .44 .45 .7
Isolated/Non-Isolated Non-Isolated Non-Isolated Non-Isolated Non-Isolated Non-Isolated
Input Type DC DC DC DC DC
Topology Buck- Synchronous Boost- Synchronous Buck- Synchronous Buck- Synchronous Linear Regulator
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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.


Reference design overview and verified performance test data

TIDRZ16.PDF (116 K)

Detailed schematic diagram for design layout and components

TIDRZ17.PDF (52 K)

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

TIDRZ18.PDF (101 K)

Detailed overview of design layout for component placement

TIDRZ20.ZIP (1452 K)

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

TIDCFA9.ZIP (3488 K)

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

TIDRZ19.PDF (586 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Buck converters (integrated switch)

LMR33620-Q13.8-V to 36-V, 2-A synchronous step-down voltage converter

Data sheet: PDF | HTML
Buck converters (integrated switch)

LMR33630-Q13.8-V to 36-V, 3-A synchronous step-down voltage converter

Data sheet: PDF | HTML
Buck converters (integrated switch)

LMR36006-Q14.2-V to 60-V, 0.6-A ultra-small synchronous step-down converter

Data sheet: PDF | HTML
Buck converters (integrated switch)

LMR36015-Q14.2-V to 60-V, 1.5-A ultra-small synchronous step-down converter

Data sheet: PDF
Buck converters (integrated switch)

TPS62420-Q1Automotive 2.5V to 6V, 2.25MHz Fixed Frequency Dual (1A/600mA) Buck Converter with 1-Wire Interface

Data sheet: PDF
Charge pumps (inductorless)

LM2775-Q1Automotive, 2.7-V to 5.5-VIN, 200-mA output current, 5-V fixed output voltage doubler

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

LP5907-Q1Automotive, 250-mA, low-noise, high-PSRR, ultra-low-dropout voltage regulator with low IQ and enable

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Design guide Automotive ADAS camera power supply reference design (Rev. A) Aug. 22, 2019

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