Automotive Wide-VIN to Point-of-Load Power Supply with Front-End Circuit Protection Reference Design

(ACTIVE) PMP15023

Description & Features

Technical Documents

Support & Training

Order Now


View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

Key Document

Description

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

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  



Schematic/Block Diagram

Quickly understand overall system functionality.

Download Schematic

Test Data

Get results faster with test and simulation data that's been verified.

Download Test Data

Design Files

Download ready-to-use system files to speed your design process. Get Viewer.

Download Design Files


Bill of Materials (BOM)

Find the complete list of components in this reference design.

Download BOM

Parametrics
 PMP15023.1
(Output Voltage 1)
PMP15023.2
(Output Voltage 2)
PMP15023.3
(Output Voltage 3)
Vin (Min) (V)555
Vin (Max) (V)363636
Vout (Nom) (V)3.31.21.8
Iout (Max) (A)3.5522
Output Power (W)11.7152.43.6
Isolated/Non-IsolatedNon-IsolatedNon-IsolatedNon-Isolated
Input TypeDCDCDC
TopologyBuck- Integrated SwitchBuck- Integrated SwitchBuck- Integrated Switch

TI Devices (3)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LM26420-Q1  Dual 2.0A, High Frequency Synchronous Step-Down DC-DC Regulator  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
LM73606  3.5V to 36V, 6A Synchronous Step-Down Voltage Converter  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
LM74610-Q1  Zero Iq Reverse Polarity Protection Smart Diode Controller  Power switches  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LM26420-Q1 Download Download
Download
LM73606 Download
LM74610-Q1 Download Download

Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.

Step 1: Download and install the free download.

Step 2: Download the Symbol and Footprint from the CAD.bxl file table.


Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

Datasheet (3)
Title Abstract Type Size (KB) Date Views
PDF 1555 13 Apr 2018
PDF 1869 20 Sep 2017
PDF 1281 07 Jun 2016
User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 1848 07 Feb 2018 0
Design files (6)
Title Abstract Type Size (KB) Date Views
PDF 103 21 Feb 2018 0
PDF 35 21 Feb 2018 0
ZIP 128 13 Feb 2018 0
ZIP 189 13 Feb 2018 0
PDF 839 13 Feb 2018 0
PDF 152 13 Feb 2018 0

Support & Training

Try our support forums.
Search expert answers for this part Ask a new question

Content is provided 'AS IS' by the respective TI and Community contributors and does not constitute TI specifications.
See terms of use.

Blogs