SNVA389B July   2009  – February 2022 LM3000

 

  1.   Trademarks
  2. 1Introduction
  3. 2Powering and Loading Considerations
    1. 2.1 Quick Setup Procedure
  4. 3Board Configuration
    1. 3.1 External Clock Synchronization
    2. 3.2 CLKOUT
    3. 3.3 Tracking
    4. 3.4 Output Voltage Ripple
  5. 4Typical Performance Waveforms
  6. 5Evaluation Board Schematic
  7. 6Bill of Materials
  8. 7PCB Layout
  9. 8Revision History

3.1 External Clock Synchronization

A SYNC terminal has been provided in this evaluation board in order to synchronize the converter to an external clock or other fixed frequency signal from 200 kHz to 1.5 MHz. Refer to the LM3000 Dual Synchronous Emulated Current-Mode Controller data sheet for complete information.

GUID-39628584-81A6-4689-AA37-9D6DF383C007-low.pngFigure 3-1 Synchronization at 3.3-V Output