PMP15023

Automotive wide-VIN to point-of-load power supply with front-end circuit protection reference design

PMP15023

Design files

Overview

This automotive point-of-load power supply reference design features complete front-end protection in a small overall solution size. The system can clamp fast high-voltage electrical transients and maintain operation through these events. It can also properly respond to a reverse battery polarity event and shut down appropriately. This three-output design employs sequencing of two buck regulators to ensure proper power-on and power-down timing, and features an input pi filter to reduce conducted EMI. The design accepts an input voltage of 5 V to 36 V and provides outputs of 3.3 V, 1.2 V, and 1.8 V. This supply is capable of supplying 2 A on the 1.8 V and 1.2-V outputs, while the 3.3-V output simultaneously supplies 3.55 A.

Features
  • Complete wide Vin front-end automotive power supply
  • Off-battery operation with reverse battery protection 
  • Positive and negative transient voltage protection
  • Auto-sequencing of all three power rails
  • Reduced EMI with included pi filter
Output voltage options PMP15023.1 PMP15023.2 PMP15023.3
Vin (Min) (V) 5 5 5
Vin (Max) (V) 36 36 36
Vout (Nom) (V) 3.3 1.2 1.8
Iout (Max) (A) 3.55 2 2
Output Power (W) 11.715 2.4 3.6
Isolated/Non-Isolated Non-Isolated Non-Isolated Non-Isolated
Input Type DC DC DC
Topology Buck- Integrated Switch Buck- Integrated Switch Buck- Integrated Switch
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.

TIDT002A.PDF (2905 K)

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

TIDRVM8B.PDF (223 K)

Detailed schematic diagram for design layout and components

TIDRVM9A.PDF (103 K)

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

TIDRVN0.PDF (152 K)

Detailed overview of design layout for component placement

TIDRVN2A.ZIP (204 K)

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

TIDCEI2A.ZIP (525 K)

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

TIDRVN1A.PDF (905 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Buck converters (integrated switch)

LM26420-Q1Dual 2 A, automotive-qualified, high-efficiency synchronous DC/DC converter

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

LM736063.5V to 36V, 6A Synchronous Step-Down Voltage Converter

Data sheet document-pdfAcrobat PDF open-in-new HTML
Ideal diode/ORing controllers

LM74610-Q10.48-V to 42-V, zero IQ automotive ideal diode controller

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

Technical documentation

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Type Title Date
* Test report Automotive Wide-VIN to Point-of-Load Power Supply Reference Design (Rev. A) Mar. 26, 2020

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