TIDEP0020

AM437x Discrete Power Reference Design

TIDEP0020

Design files

Overview

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.
Industrial

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.

TIDRAN1A.PDF (52 K)

Detailed schematic diagram for design layout and components

TIDRAN2.PDF (98 K)

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

TIDRAN3.ZIP (43 K)

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

Products

Includes TI products in the design and potential alternatives.

Arm-based processors

AM4376Sitara processor: Arm Cortex-A9, PRU-ICSS

Data sheet document-pdfAcrobat PDF open-in-new HTML
Arm-based processors

AM4377Sitara processor: Arm Cortex-A9, PRU-ICSS, EtherCAT

Data sheet document-pdfAcrobat PDF open-in-new HTML
Arm-based processors

AM4378Sitara processor: Arm Cortex-A9, PRU-ICSS, 3D graphics

Data sheet document-pdfAcrobat PDF open-in-new HTML
Arm-based processors

AM4379Sitara processor: Arm Cortex-A9, PRU-ICSS, EtherCAT, 3D graphics

Data sheet document-pdfAcrobat PDF open-in-new HTML
Buck converters (integrated switch)

TLV620801.2A High Efficient Step Down Converter in 2x2mm SON Package

Data sheet document-pdfAcrobat PDF open-in-new HTML
Buck converters (integrated switch)

TLV625651.5A Buck Converter in SOT23 Package

Data sheet document-pdfAcrobat PDF open-in-new HTML
Linear & low-dropout (LDO) regulators

TLV702300-mA, high-PSRR, low-IQ, low-dropout voltage regulator with enable

Data sheet document-pdfAcrobat PDF open-in-new HTML
Supervisor & reset ICs

TLV8033-pin voltage supervisor (reset IC) with active-low & open-drain reset

Data sheet document-pdfAcrobat PDF

Technical documentation

No results found. Please clear your search and try again.
View all 2
Type Title Date
User guide Discrete Power Solution for AM437x (Rev. A) Dec. 01, 2017
Technical article BOM-optimize your vacuum cleaner! Jan. 13, 2015

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​

Videos