AM437x Discrete Power Reference Design TIDEP0020 (ACTIVE)

Description & Features

Technical Documents

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Description

The Sitara AM437x simplified power sequence feature provides flexibility to power designers. This reference design implementation is a BOM-optimized discrete power solution for the AM437x processor with a minimal number of discrete ICs and basic feature set. The solution represents a baseline of a discrete power solution that can be extended for additional features and capabilities of the AM437x processor.

 

Features
  • Simplified, BOM-optimized discrete power solution for the Sitara AM437x processor.
  • AM437x includes an integrated LDO that simplifies processor power sequencing requirements.
  • Systems without controlled power down can greatly benefit from this feature since the integrated LDO always ensures power up/down sequencing is met for VDDS and VDDSHVx supplies
  • The TLV62565 step down converter provides the 3.3 volt supply and the TLV62080 provides the 1.1 volt supply.
  • Two TLV702xx low drop out regulators (LDOs) provide the 1.5-V and 1.8-V supplies.
  • TLV803M voltage supervisor keeps the processor in reset until all rails are operational and to reset the processor when input power is lost.
  • This design is tested and includes schematics, BOM, design guide, and test data.

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Schematic/Block Diagram

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Design Guide

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Design Files

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Part Number Status

TIDEP0020:
AM437x Discrete Power Reference Design

ACTIVE

TI Devices (8)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
AM4376  Sitara Processor: Arm Cortex-A9, PRU-ICSS  Sitara processors  Sample & Buy View Design Kits & Evaluation Modules
AM4377  Sitara Processor: Arm Cortex-A9, PRU-ICSS, EtherCAT  Sitara processors  Sample & Buy View Design Kits & Evaluation Modules
AM4378  Sitara Processor: Arm Cortex-A9, PRU-ICSS, 3D graphics  Sitara processors  Sample & Buy View Design Kits & Evaluation Modules
AM4379  Sitara processor: Arm Cortex-A9, PRU-ICSS, EtherCAT, 3D graphics  Sitara processors  Sample & Buy View Design Kits & Evaluation Modules
TLV62080  1.2A High Efficient Step Down Converter in 2x2mm SON Package  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
TLV62565  1.5A Buck Converter in SOT23 Package  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
TLV702  300mA Low-Iq Low-Dropout (LDO) Regulator for Portables  Power management  Sample & Buy View Design Kits & Evaluation Modules
TLV803  3-pin voltage supervisor (reset IC) with active-low and open-drain reset  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
AM4376 Download -
AM4377 Download -
AM4378 Download -
AM4379 Download -
TLV62080 Download
TLV62565 Download Download
TLV702 Download Download
Download Download
TLV803 Download Download

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Step 2: Download the Symbol and Footprint from the CAD.bxl file table.


Technical Documents

See the Important Notice and Disclaimer covering reference designs and other TI resources.

User guides (1)
Title Type Size (KB) Date
PDF 587 01 Dec 2017
Design files (3)
Title Type Size (KB) Date
PDF 52 30 Nov 2017
ZIP 43 23 Sep 2014
PDF 98 23 Sep 2014

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