High efficiency, low-noise 5-V/3.3-V/1.8-V/1.1-V automotive display reference design


Design files


This reference design is for an automotive display application with a customized form factor. The design demonstrates the excellent thermal performance of LM61460-Q1 with its HotRod™ QFN package as well as the low EMI aided by its spread spectrum feature. It generates four 5-V/3.3-V/1.1-V/1.8-V rails. It is designed for high efficiency and low noise applications where thermal performance and EMI performance are needed.

  • High efficiency 6-A buck converter
  • Low EMI with spread spectrum
  • Dual buck converter with diagnostic functions
  • Excellent thermal performance with HotRod package
  • On-board EMI filter
  • Passes CISPR 25 Class 5 conducted EMI
Output voltage options PMP22334.1 PMP22334.2 PMP22334.3 PMP22334.4
Vin (Min) (V) 8 5 5 5
Vin (Max) (V) 18 5 5 5
Vout (Nom) (V) 5 3.3 1.1 1.8
Iout (Max) (A) 3.5 1.5 2.2 .18
Output Power (W) 17.5 4.95 2.42 .324
Isolated/Non-Isolated Non-Isolated Non-Isolated Non-Isolated Non-Isolated
Input Type DC DC DC DC
Topology Buck- Synchronous Buck- Synchronous Buck- Synchronous 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.

TIDT163.PDF (4117 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

TIDM470.PDF (337 K)

Detailed schematic diagram for design layout and components

TIDM471.PDF (139 K)

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

TIDM472.PDF (236 K)

Detailed overview of design layout for component placement

TIDM474.ZIP (329 K)

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

TIDCFS3.ZIP (2553 K)

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

TIDM473.PDF (208 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Buck converters (integrated switch)

LM61460-Q1Automotive 3-V to 36-V, 6-A, low-noise synchronous step-down converter

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

TPS745-Q1Automotive 500-mA, low-IQ, high-PSRR, low-dropout (LDO) voltage regulator with power good

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

TPS7A66-Q1Automotive 150-mA, off-battery (40-V), low-IQ, low-dropout voltage regulator with power good

Data sheet: PDF | HTML
Multi-channel ICs (PMICs)

LP87702-Q1Dual buck converter and 5-V boost with diagnostic functions

Data sheet: PDF | HTML
Supervisor & reset ICs

TPS3840-Q1Automotive high-input voltage supervisor with manual reset and programmable-reset time delay

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Test report High Efficiency, Low-Noise 5-V/3.3-V/1.8-V/1.1-V Automotive Reference Design Feb. 18, 2020

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