Automotive Off-Battery Infotainment Processor Power Reference Design
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Key Document


The TIDA-00801 reference design is a full off-battery to point of load power solution supporting input voltages as low as 2V.  It uses the Boost plus Buck DC/DC regulator TPS43330A-Q1 supporting an  input voltage range of  2V to 40V and allowing the design to support not only start-stop but also cold crank conditions.   The TPS659039-Q1 integrated power management IC supplies point of load power to an application processor such as the TDA2x/DRA7xx.  Also included  is a 5V/4A load switch, the TPS22965-Q1, and a linear regulator TPS51200-Q1 for DDR termination supply.

Supports cold and warm cranking, supports modern processors sequencing needs without further logic, supports peripherals and is a small form-factor,  low system-cost solution.

  • Supports Power- and Sequencing requirements of modern Processors
  • Supports Cranking Profiles
  • Supports Peripheral Supplies (I/Os, Memory)
  • Small form factor
  • Cost-effective

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Schematic/Block Diagram

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Design Guide

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Design Files

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Vin (Min) (V)443.1353.1353.1353.1353.1353.1353.1353.1353.1355.
Vin (Max) (V)40405.
Vout (Nom) (V)
Iout (Max) (A)246433211.
Output Power (W)1013.
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TI Devices (4)

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Part Number Name Product Family Sample & Buy 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
TPS43330A-Q1  Automotive 2V to 40V Low Iq Single Boost & Dual Synchronous Buck Controller  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS51200-Q1  Automotive Catalog Sink/Source DDR Termination Regulator  Power management  Not Available View Design Kits & Evaluation Modules
TPS659039-Q1  Automotive 3.15V to 5.5V, 7 Buck & 6 LDO Power Management IC (PMIC) for ARM Cortex A15 Processors  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
TPS22965-Q1 Download Download
TPS43330A-Q1 Download -
TPS51200-Q1 Download Download
TPS659039-Q1 Download Download

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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 3339 19 Oct 2015
Design files (7)
Title Type Size (KB) Date
PDF 316 15 Feb 2016
ZIP 885 01 Feb 2016
ZIP 22 01 Feb 2016
ZIP 2154 01 Feb 2016
PDF 4185 01 Feb 2016
PDF 370 01 Feb 2016
PDF 112 01 Feb 2016

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