Automotive front-end power for cluster applications reference design
PMP21611
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Key Document

Description

This reference design is an automotive front-end power solution for use in high performance cluster applications. This design supports three output voltage rails of 5 V, 3.3 V and 1.2 V. The design also operates with a wide input voltage range and withstands reverse battery conditions. A transient voltage suppressor at the input adds protection for load dump. The above-AM band switching frequencies and dithering reduce the burden of emissions compliance. This reference design also provides results for conducted emissions tests for CISPR 25 Class 5.

Features
  • Automotive high performance cluster power solution
  • Reverse battery protection
  • 2.1 MHz and 3 MHz switching above AM band
  • Dither further improves EMI performance
  • Tested to CIRPR 25 Class 5 conducted emissions

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Schematic/Block Diagram

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Design Guide

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Design Files

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Parametrics
 PMP21611.1
(Output Voltage 1)
PMP21611.2
(Output Voltage 2)
PMP21611.3
(Output Voltage 3)
Vin (Min) (V)655
Vin (Max) (V)2855
Vout (Nom) (V)51.23.3
Iout (Max) (A)1.5.5
Output Power (W)5.61.65
Isolated/Non-IsolatedNon-IsolatedNon-IsolatedNon-Isolated
Input TypeDCDCDC
TopologyBuck- Integrated SwitchBuck- Integrated SwitchBuck- Integrated Switch

TI Devices (3)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LM53635-Q1  2.5/3.5A, 36 V Synchronous, 2.1MHz, Automotive Step Down DC-DC Converter  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules
LM74700-Q1  3.2-V to 65-V, 80-uA IQ automotive ideal diode controller  Power switches  Sample & Buy View Design Kits & Evaluation Modules
TPS62067-Q1  3MHz, 2A Automotive Step-Down Converter in 2x2 SON Package  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LM53635-Q1 Download Download
LM74700-Q1 Download -
TPS62067-Q1 Download Download

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Technical documentation

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User guides (1)
Title Type Size (KB) Date
PDF 4968 09 Jul 2020
Design files (6)
Title Type Size (KB) Date
ZIP 2123 31 Jul 2020
PDF 971 31 Jul 2020
ZIP 447 15 Jul 2020
PDF 217 15 Jul 2020
PDF 91 15 Jul 2020
PDF 361 15 Jul 2020

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