Automotive Off-Battery Processor Power Reference Design for ADAS and Infotainment
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Key Document


The TIDA-00805 reference design is an off-battery automotive power solution targeting processors in advanced driver assistance systems (ADAS) like surround view, front camera and driver monitoring, as well as infotainment systems such as cluster and head unit. The design operates directly from a 3.9 to 40V car battery input and provides all supply rails for the application processor, Controller Area Network (CAN), input/output interfaces and double data rate (DDR) memory.

  • Supports power and sequencing requirements of modern processors
  • Small solution size
  • Provides all power supply rails for TDA2x/TDA2Ex and DRA72x/DRA74x/DRA75x application processors
  • Supports start-stop, cold and warm cranking down to 3.9 V
  • Supports peripheral supplies (I/Os, memory)

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Schematic/Block Diagram

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Design Files

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Vin (Min) (V)
Vin (Max) (V)405.
Vout (Nom) (V)3.351.
Iout (Max) (A)
Output Power (W)
TopologyBuck- Integrated Switch
Buck- Synchronous
Boost- Integrated Switch
Boost- Transition Mode
Buck- Synchronous
Buck- SynchronousBuck- SynchronousBuck- SynchronousBuck- SynchronousBuck- SynchronousLinear RegulatorLinear RegulatorLinear RegulatorLinear RegulatorLinear RegulatorOtherOtherOther

TI Devices (5)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LM53635-Q1  2.5/3.5A, 36 V Synchronous, 2.1MHz, Automotive Step Down DC-DC Converter  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules
TPS22965-Q1  5.7-V, 4-A, 16-mΩ automotive load switch with adj. rise time and output discharge  Power switches  Sample & Buy View Design Kits & Evaluation Modules
TPS51200-Q1  Automotive Catalog Sink/Source DDR Termination Regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS61240-Q1  2.3-V to 5.5-V input range, 3.5-MHz fixed frequency 450-mA boost converter, AEC-Q100 qualified  Step-up (boost) regulators  Sample & Buy View Design Kits & Evaluation Modules
TPS65917-Q1  Automotive 3.15V to 5.25V, 5 buck & 5 LDO Power Management IC (PMIC)  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LM53635-Q1 Download Download
TPS22965-Q1 Download Download
TPS51200-Q1 Download Download
TPS61240-Q1 Download Download
TPS65917-Q1 Download

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Technical documentation

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Data sheet (2)
Title Type Size (KB) Date
PDF 2411 18 Dec 2019
PDF 2715 13 May 2016
User guide (1)
Title Type Size (KB) Date
PDF 1932 31 Jan 2017
Design files (6)
Title Type Size (KB) Date
ZIP 495 23 Dec 2016
ZIP 772 23 Dec 2016
PDF 2443 23 Dec 2016
PDF 226 23 Dec 2016
PDF 200 23 Dec 2016
PDF 609 23 Dec 2016
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Reference Designs (2)

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