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


Design files


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
Output voltage options PMP15016.1
Vin (Min) (V) 9
Vin (Max) (V) 36
Vout (Nom) (V) 5
Iout (Max) (A) 3
Output Power (W) 15
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Buck- Synchronous
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

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

TIDUC28.PDF (1025 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more


Detailed schematic diagram for design layout and components


Complete listing of design components, reference designators, and manufacturers/part numbers


Detailed overview of design layout for component placement


Files used for 3D models or 2D drawings of IC components


Design file that contains information on physical board layer of design PCB

TIDRMX0.PDF (5463 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Buck converters (integrated switch)

LMR23630SIMPLE SWITCHER®, 36V 3A Synchronous Step-Down Converter

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Test report PMP15016 Test Results Jul. 25, 2016

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