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TIDA-01568

12mm x 12mm, 5-Rail Power Sequencing for Application Processors Reference Design

Design files

TIDA-01568

Design files

Overview

This reference design demonstrates a validated and cost competitive power sequencing solution for an application processor or a high performance control platform. This design supports 5 different voltage rails, optimized with layout space of 12 mm × 12 mm. The design is also capable of adjusting delay time and re-configuring specific voltage level for each rail to fit different input capacitors and different processors' requirements.

Features
  • Validated power sequencing solution for application processors
  • Correct power up/down sequence, even for uncontrolled power off at various load situations
  • Power tree efficiency is maintained high both at heavy load and at a light load
  • Small layout space of power supply: area smaller than 12 mm × 12 mm
Communications equipment
Industrial
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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.

download Design guide — TIDA-01568
PDF | HTML
TIDUDT4A.PDF (2740 K)

Reference design overview and verified performance test data

download Schematic — TIDA-01568
TIDRWC0.PDF (1072 K)

Detailed schematic diagram for design layout and components

download Bill of materials (BOM) — TIDA-01568
TIDRWC4.PDF (41 K)

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

download Assembly drawing — TIDA-01568
TIDRWC5.PDF (565 K)

Detailed overview of design layout for component placement

download Assembly drawing — TIDA-01568
TIDRWC2.PDF (578 K)

Detailed overview of design layout for component placement

download CAD/CAE symbol — TIDA-01568
TIDRWC3.ZIP (2861 K)

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

download Gerber file — TIDA-01568
TIDCEO5.ZIP (289 K)

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

download PCB layout — TIDA-01568
TIDRWC1.PDF (4523 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Arm-based processors

AM3358 — Sitara processor: Arm Cortex-A8, 3D graphics, PRU-ICSS, CAN

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

TLV62568 — 2.5V-5.5V input, 1A high efficiency step-down buck converter in SOT23 and SOT563 package

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

TLV62569 — 2.5V-5.5V input, 2-A high efficiency step-down buck converter in SOT23 and SOT563 package

Data sheet: PDF | HTML
ESD protection diodes

TPD4S012 — Quad 0.8-pF, 5.5-V, ±10-kV ESD protection diode with 15-V tolerant Vbus for USB Interface<

Data sheet: PDF | HTML
Inverting buffers & drivers

SN74LVC1G06 — Single 1.65-V to 5.5-V inverter with open-drain outputs

Data sheet: PDF | HTML
Noninverting buffers & drivers

SN74LVC2G241 — 2-ch, 1.65-V to 5.5-V buffers with 3-state outputs

Data sheet: PDF | HTML
Sequencers

LM3881 — 3 rail simple power sequencer with adjustable time delay

Data sheet: PDF | HTML
Supervisor & reset ICs

TLV803 — 3-pin voltage supervisor (reset IC) with active-low & open-drain reset

Data sheet: PDF | HTML
USB power switches & charging port controllers

TPS2051B — 0.5A loading, 2.7-5.5V, 70mΩ USB power switch, active-high

Data sheet: PDF | HTML
Wi-Fi products

WL1837MOD — WiLink™ 8 industrial dual band, 2x2 MIMO Wi-Fi®, Bluetooth® & Bluetooth Smart module

Data sheet: PDF | HTML

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Software

Design tools & simulation

Simulation model

TIDA-01568 Simulation — TIDM018.ZIP (1800 K)

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Technical documentation

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Type Title Date
* Design guide Discrete Power Solution for AM335x in 12mmx12mm Form-Factor Reference Design (Rev. A) PDF | HTML Nov. 09, 2021
Technical article How to manage processor power during uncontrolled power off Jun. 21, 2018

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