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

Load Regulation

This section provides efficiency plots for the board with LM61460AAS populated for Auto mode efficiency and LM61460AFS populated for FPWM mode efficiency. For 2-MHz data, the output stage has to be changed from the default BOM. The inductor (L1) selected was XEL5030-102MEB.

GUID-D7DEC057-8F32-416F-B0D6-6CC26D48E64B-low.gifFigure 6-16 FSW = 400 kHz, 5 VOUT, Auto Mode
GUID-A3776023-76F6-4283-84C1-BAD70C31D16B-low.gifFigure 6-18 FSW = 400 kHz, 3.3 VOUT, Auto Mode
GUID-08DCA4A2-168F-42A5-A058-5B12C4BD05A0-low.gifFigure 6-20 FSW = 2.2 MHz, 5 VOUT, Auto Mode
GUID-2DFCE3A6-40DB-4846-8D69-A575F9C08508-low.gifFigure 6-22 FSW = 2.2 MHz, 3.3 VOUT, Auto Mode
GUID-D576EDD4-FBFC-4437-92F0-9DB820390B8B-low.gifFigure 6-17 FSW = 400 kHz, 5 VOUT, FPWM Mode
GUID-C522BBB6-6511-4A8F-929C-B5EBC1FC4333-low.gifFigure 6-19 FSW = 400 kHz, 3.3 VOUT, FPWM Mode
GUID-70B06B04-2E82-40BA-82C4-5C641A23155D-low.gifFigure 6-21 FSW = 2.2 MHz, 5 VOUT, FPWM Mode
GUID-728CB0B5-1329-4C3D-8FF5-ABAEC36D1496-low.gifFigure 6-23 FSW = 2.2 MHz, 3.3 VOUT, FPWM Mode