SLVT229 December   2025

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6.   6
  7. 1System Description
    1. 1.1 Key System Specifications
  8. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
      1. 2.2.1 High Side Gate Drive Circuit
      2. 2.2.2 PWM Generation Circuit
    3. 2.3 Highlighted Products
      1. 2.3.1 UCC21330-Q1 Overview
      2. 2.3.2 UCC27211A-Q1 Overview
      3. 2.3.3 TPS1212-Q1 Overview
  9. 3Hardware, Software, Testing Requirements, and Test Results
    1. 3.1 Hardware Requirements
    2. 3.2 Test Setup
    3. 3.3 Test Results
      1. 3.3.1 Efficiency Data
      2. 3.3.2 Efficiency Graphs
      3. 3.3.3 Output Voltage Ripple
      4. 3.3.4 Thermal Images
      5. 3.3.5 Switch Voltage Stress of High Side Switches
      6. 3.3.6 Load Transients
      7. 3.3.7 Reverse Step-up Operation of SCC
  10. 4Design and Documentation Support
    1. 4.1 Design Files
      1. 4.1.1 PCB Layout Recommendations
    2. 4.2 Documentation Support
    3.     Trademarks

4.1.1 PCB Layout Recommendations

For this switched capacitor converter design, first follow the PCB layout practice guidelines for general switching converter to improve overall thermal and EMI performance.

  • Application reports:
  • Application brief:
  • Seminar:

Aside from these practices, verify the layout is symmetrical as possible across similar structures. For example, for the high-side and low-side FETs (Q1 and Q2 as well as Q3 and Q4) driven by the two UCC21330A-Q1 gate drivers in the design, the layout should be kept in a similar pattern.

PMP41150 SCC Power Stage Layout Example Figure 4-1 SCC Power Stage Layout Example

This helps maintain a similar parasitic inductance in across each flying capacitor leg (C1, C2 and C3 in Figure 2-1) and help reproducing a similar resonant performance.