Multi-rail TV power supply reference design, with flexible partitioning to maximize power savings


Design files


The TIDA-050027 reference design is a power distribution solution for Television (TV) platforms. By providing a configuration that emulates common voltage rails and peripherals, this design can be used as a reference design across multiple TV power architectures including LCD and OLED TV. On the input an eFuse is used for short circuit protection, while the high efficiency buck converters provide the necessary power for the core rail, always-on rails, and peripheral rails. Furthermore, for certain peripherals low IQ lowdropout regulators (LDO) provide clean digital power rails. In addition to these power components load switches control the voltage with controlled slew rates to allow for power sequencing and power savings. Additionally integrated load switches provide self protection while reducing BOM count and solution size.

  • Fully-featured power tree for common TV rails allow for appropriate selection of load switches, buck converters, and LDOs in system design
  • High efficiency buck converters with fast transient response and reduced BOM count for smaller solution size
  • Integrated protection features improve reliability for longer system lifetime
  • Switching OFF unused loads results in higher system efficiency and lower standby current
  • Load switches offer smaller solution size and lower component count when compared to discrete FET solutions
Output voltage options TIDA-050027.1 TIDA-050027.2 TIDA-050027.3 TIDA-050027.4 TIDA-050027.5
Vin (Min) (V) 12 12 5 5 3.3
Vin (Max) (V) 16 16 5 5 3.3
Vout (Nom) (V) 5 1 1.5 3.3 1.8
Iout (Max) (A) 4 6 2 1 1
Output Power (W) 20 6 3 3.3 1.8
Isolated/Non-Isolated Non-Isolated Non-Isolated Non-Isolated Non-Isolated Non-Isolated
Input Type DC DC DC DC DC
Topology Buck- Synchronous Buck- Synchronous Buck- Synchronous Linear Regulator Linear Regulator
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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.


Reference design overview and verified performance test data


Detailed schematic diagram for design layout and components


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


Detailed overview of design layout for component placement

TIDM330.ZIP (1199 K)

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


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


PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Load switches

TPS2281018-V, 3-A, 79-mΩ load switch with adj. rise time and adj. output discharge

Data sheet: PDF | HTML
Load switches

TPS229195.5-V, 1.5-A, 90-mΩ load switch with adj. output discharge

Data sheet: PDF | HTML
Load switches

TPS229755.7-V, 6-A, 16-mΩ load switch with adj. rise time, optional output discharge, and thermal shutdown

Data sheet: PDF | HTML
AC/DC & DC/DC converters (integrated FET)

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

Data sheet: PDF | HTML
AC/DC & DC/DC converters (integrated FET)

TLV62569A2A High Efficiency Step-down Buck Converter with forced PWM in SOT Package

Data sheet: PDF | HTML
AC/DC & DC/DC converters (integrated FET)

TPS5642014.5 V to 17 V input, 4 A output, synchronous step-down converter in Eco-mode

Data sheet: PDF | HTML
AC/DC & DC/DC converters (integrated FET)

TPS5662504.5-V to 17-V, 6-A synchronous buck converter with VID control

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TLV755P500-mA high-PSRR low-IQ low-dropout voltage regulator with enable

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TLV759P1-A, low-IQ, high-accuracy, adjustable ultra-low-dropout voltage regulator with enable

Data sheet: PDF | HTML
Supervisor & reset ICs

TLV809ELow-power voltage supervisor (reset IC) with active-low push-pull output

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

TPS252210.275-2.7A adj. ILIMIT, 2.5-5.5V, 70mΩ USB power switch, active-high, reverse blocking

Data sheet: PDF | HTML
eFuses & hot swap controllers

TPS25952.7-V to 18-V, 34mΩ, 0.5-4A eFuse with over voltage protection in small WSON package

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Design guide Multi-rail TV Power Supply Ref Design With Flexible Partitioning (Rev. B) Nov. 11, 2019

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