CISPR 25 Class 5 Rated 3.3W Automotive Power Reference Design

(ACTIVE) PMP9397

Description & Features

Technical Documents

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Description

The PMP9397 reference design provides a conducted EMI optimized 3.3W power supply design for automotive applications.  The design uses the non-synchronous buck regulator, LM26001, to generate a 3.3V, 1A output.  The input voltage range is 4.5V to 38V suitable for automotive battery supply.  The reference design comes with the input EMI filter stage to suppress the switching noise in the input supply line, and the board is tested to be compliant with the CISPR 25 Class 5 conducted emissions standard.

Features
  • CISPR 25 class 5 conducted emissions standard compliance
  • LM26001, 38V, 1A, buck regulator
  • 4.5-38V operating input voltage range
  • Input EMI filter to suppress conducted emissions
  • Optimized layout for better EMI performance
  • 3.3W power supply design, ideal for 12V automotive battery system

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Schematic/Block Diagram

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Test Data

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Design Files

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Bill of Materials (BOM)

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Parametrics
 PMP9397.1
(Output Voltage 1)
Vin (Min) (V)4.5
Vin (Max) (V)38
Vout (Nom) (V)3.3
Iout (Max) (A)1
Output Power (W)3.3
Isolated/Non-IsolatedNon-Isolated
Input TypeDC
TopologyBuck- Non Sync

TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LM26001  1.5A Switching Regulator with High Efficiency Sleep Mode  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LM26001 Download Download

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Technical Documents

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

User guides (1)
Title Abstract Type Size (KB) Date Views
PDF 203 24 Nov 2014 12
Design files (3)
Title Abstract Type Size (KB) Date Views
ZIP 65 24 Nov 2014 6
PDF 25 24 Nov 2014 5
PDF 190 24 Nov 2014 11

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