TIDA-01579

High efficiency, low-output ripple power supply reference design for imaging application

TIDA-01579

Design files

Overview

The point-of-load power-tree on video surveillance systems is optimized with this reference design. This reference design has a high performance on key parameters such as output voltage accuracy, voltage ripple, and thermal dissipation. This high performance is possible with a small board area and low BOM cost. This design operates from a 5-V supply commonly found in video doorbells, IP network cameras, and wireless cameras.

Features
  • 1% typical output voltage accuracy
  • High system efficiency to 90% at full load
  • Voltage ripple < 60-μV, useful for noise-critical peripherals
  • Thermal hot spot is < 45°C at full load current
  • Power supply spur free dynamic resolution greater than 80dB
  • Small form factor

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.

TIDUEC7.PDF (10732 K)

Reference design overview and verified performance test data

TIDRX89.PDF (416 K)

Detailed schematic diagram for design layout and components

TIDRX90.PDF (81 K)

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

TIDRX91.PDF (394 K)

Detailed overview of design layout for component placement

TIDRX93.ZIP (1091 K)

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

TIDCEX1.ZIP (363 K)

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

TIDRX92.PDF (1059 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Backlight LED drivers

TPS61169TPS61169 38-V high-current Boost WLED driver

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

TLV625682.5V-5.5V input, 1A high efficiency step-down buck converter in SOT23 and SOT563 package

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

TPS628212.4V-5.5V input, 1A step-down converter With 1% Accuracy in 1.5x2mm QFN

Data sheet document-pdfAcrobat PDF open-in-new HTML
I2C general-purpose I/Os (GPIOs)

TCA953516-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt & config registers

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

TLV742P200-mA low-IQ low-dropout (LDO) voltage regulator

Data sheet document-pdfAcrobat PDF open-in-new HTML
Load switches

TPS229762-ch, 5.7-V, 6-A, 14-mΩ, load switch with adj. rise time and optional output discharge

Data sheet document-pdfAcrobat PDF

Technical documentation

star
= Top documentation selected by TI
No results found. Please clear your search and try again.
View all 1
Type Title Date
* Design guide High-Efficiency, Low-Output Ripple Power Supply Ref. Des. for Imaging Applicatio Oct. 12, 2018

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