Automotive Power Reference Design for Infotainment Systems PMP30267 (ACTIVE)

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Key Document

Description

This reference design shows a complete power tree for automotive infotainment systems. The LM74700-Q1 provides reverse polarity protection to the system. The pre-booster with LM5150-Q1 provides a stable supply voltage of 10.5V during cranking for the dual-synchronous buck converter with LM5140-Q1, that provides an output voltage of 3.3V for a load current of 6.0A and an output voltage of 7.5V for a load current of 2.5A.

Features
  • Automotive power system reference design
  • Supports input voltage down to 3.2V
  • Reverse polarity protection
  • Small form factor

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Parametrics
 PMP30267.1
(Output Voltage 1)
PMP30267.2
(Output Voltage 2)
PMP30267.3
(Output Voltage 3)
Vin (Min) (V)3.210.510.5
Vin (Max) (V)404040
Vout (Nom) (V)10.53.37.5
Iout (Max) (A)1.562.5
Output Power (W)15.7519.818.75
Isolated/Non-IsolatedNon-IsolatedNon-IsolatedNon-Isolated
Input TypeDCDCDC
TopologyBoost- Non SyncBuck- SynchronousBuck- Synchronous

TI Devices (3)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LM5140-Q1  Wide Vin Dual 2.2MHz low Iq Synchronous Buck Controller  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
LM5150-Q1  Wide VIN Automotive Low IQ Boost Controller  Step-up (boost)  Sample & Buy View Design Kits & Evaluation Modules
LM74700-Q1  Low Iq, ideal diode controller  Power switches  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LM5140-Q1 Download Download
LM5150-Q1 Download
LM74700-Q1 Download -

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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 1087 16 Apr 2018
Design files (6)
Title Type Size (KB) Date
ZIP 62 16 Apr 2018
ZIP 1435 16 Apr 2018
PDF 375 16 Apr 2018
PDF 288 16 Apr 2018
PDF 29 16 Apr 2018
PDF 296 16 Apr 2018

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