SNVU819 November   2021 LM5168 , LM5168-Q1

 

  1.   Trademarks
  2. 1General TI High Voltage Evaluation User Safety Guidelines
  3. 2EVM Characteristics
  4. 3LM5168FEVM 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

3 LM5168FEVM Evaluation Module

The LM5168FEVM is configured to deliver a regulated 10-V output, 0.25 A at 750-kHz switching frequency, and an additional 10-V floating output. The LM5168 uses a COT control architecture, with input voltage feedforward to provide a constant frequency regulator with tightly regulated output voltage. This type of control requires adequate voltage ripple at the FB input to achieve stable regulation. The LM5168FEVM is set up with type III ripple injection to minimize the output voltage ripple while ensuring a stable regulator. The LM5168FEVM also provides the option to use type I or type II ripple injection. See the LM516x-Q1 0.65/0.3-A, 120-V Step-Down Converter w/ Fly-Buck Converter Capability Data Sheet for more information. An overall view of the LM516FEVM and the schematic are shown in Figure 3-1 and Figure 4-1, respectively.