SNVU621D May   2019  – July 2021 LM61440 , LM61440-Q1 , LM61460 , LM61460-Q1

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 LM61460 Synchronous Step-Down Voltage Converter
    2. 1.2 LM61460-Q1 Evaluation Module
  3. 2Quick Start
  4. 3Detailed Descriptions
  5. 4Schematic
    1. 4.1 Alternative BOM Configurations
  6. 5Board Layout
  7. 6LM61460EVM Board Test Results
    1. 6.1 EMI
    2. 6.2 Board Efficiency
    3. 6.3 Load Regulation
  8. 7Bill of Materials
  9. 8Revision History

EMI

The EMI measurements were taken following CISPR 25, Class 5 standards. The measurements were taken at 13.5 VIN, 5 VOUT with a 6 A load.

GUID-1E193DAD-186F-44E1-A144-70D7D45FD029-low.gifFigure 6-1 Conducted EMI Measurement with CISPR 25 Class 5 Limit Lines (150 kHz to 30 MHz)
GUID-0DC99039-ACDA-4245-902F-A60BE59F3393-low.gifFigure 6-3 Radiated EMI Measurement with Horizontal Bicon Antenna Under CISPR 25 Class 5 Limits
GUID-9DD1A23C-46D4-48ED-9E6E-D9E00DDEE980-low.gifFigure 6-5 Radiated EMI Measurement with Horizontal Log Antenna Under CISPR 25 Class 5 Limits
GUID-0ABDFE0F-960D-4E87-8B11-DC2A411F73B3-low.gifFigure 6-7 Radiated EMI Measurement with Rod Antenna Under CISPR 25 Class 5 Limits
GUID-7444105A-E277-45DE-9FB8-385127017057-low.gifFigure 6-2 Conducted EMI Measurement with CISPR 25 Class 5 Limit Lines (30 MHz to 110 MHz)
GUID-9C1676DC-3BED-424E-8054-865E13043B8B-low.gifFigure 6-4 Radiated EMI Measurement with Vertical Bicon Antenna Under CISPR 25 Class 5 Limits
GUID-3D0EDD02-6614-46BB-8CCD-1BD653C5A2B4-low.gifFigure 6-6 Radiated EMI Measurement with Vertical Log Antenna Under CISPR 25 Class 5 Limits