CISPR-22 EMI-Optimized Reference Design Featuring LMR23630 Synchronous DC/DC Buck Converter
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Key Document


The PMP15016 reference design is a 5V/3A output power supply using the LMR23630 DC/DC buck regulator IC. This design uses a 4-layer board and is intended for industrial applications with a 24V input bus. LMR23630 is a 4.0V to 36V input, 3A output capable, and 400 kHz fixed synchronous buck regulator. This reference design has an input voltage range of 9V to 36V, covering the widely-varying input voltage condition commonly seen in industrial applications with a loosely-regulated nominal 24V input voltage. The reference board includes an input EMI filter section. The layout is optimized for improved EMI performance on a 4-layer PCB. The board was tested to the CISPR-22 standard. The conducted emissions (CE) and radiated emissions (RE) are in compliance with the CISPR-22 Class-B requirement with 10dB of margin.

  • Wide 9V to 36V input voltage range for nominal 24V input bus, 5V/3A output
  • Compliant with both CISPR-22 Class-B conducted and radiated emissions standards with 10dB+ margin    
  • Peak current mode control, OCP function, inductor saturation protection
  • Easy to use 8-pin SOIC package

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Schematic/Block Diagram

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Test Data

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(Output Voltage 1)
Vin (Min) (V)9
Vin (Max) (V)36
Vout (Nom) (V)5
Iout (Max) (A)3
Output Power (W)15
Input TypeDC
TopologyBuck- Synchronous

TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LMR23630  SIMPLE SWITCHER®, 36V 3A Synchronous Step-Down Converter  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LMR23630 Download Download
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Technical Documents

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Datasheet (1)
Title Type Size (KB) Date
PDF 3703 28 Feb 2018
User guides (1)
Title Type Size (KB) Date
PDF 971 25 Jul 2016
Design files (6)
Title Type Size (KB) Date
ZIP 160 25 Jul 2016
ZIP 18 25 Jul 2016
PDF 5463 25 Jul 2016
PDF 763 25 Jul 2016
PDF 98 25 Jul 2016
PDF 148 25 Jul 2016
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Reference Designs  ( 2 )

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