SNVU754A October   2021  – November 2021 LM5013-Q1

 

  1.   Trademarks
  2. 1General TI High Voltage Evaluation User Safety Guidelines
  3. 2Overview
    1. 2.1 LM5013-Q1 Asynchronous Buck Converter
  4. 3LM5013-Q1 Evaluation Module
    1. 3.1 Quick Start Procedure
    2. 3.2 Detailed Descriptions
  5. 4Schematic
  6. 5PCB Layout
  7. 6Bill of Materials
  8. 7Performance Curves
  9. 8Revision History

3 LM5013-Q1 Evaluation Module

The LM5013-Q1EVM is configured to deliver 12-V at up to 3.5-A at a switching frequency of 300-kHz. As shown in LM5013-Q1EVM schematic, a type 3 ripple generation circuit is used to generate the appropriate voltage ripple on FB. This circuit uses an RC network (consisting of "R4" and "C4") between SW and VOUT to create a triangular ramp. This triangular ramp is then AC coupled into the feedback node with capacitor "C16." This method is best suited for applications where low output voltage ripple is required and where ceramic output capacitors are used (since it is not using the output voltage to generate the ripple signal). If additional output ripple can be managed, a possibility for reduced BOM count can be achieved with type 1 or type 2 compensation. Reference the data sheet for these implementations.