TIDUF58 June   2024

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6.   6
  7. 1System Description
  8. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
    3. 2.3 Highlighted Products
    4. 2.4 System Design Theory
  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 Output Ripple
      2. 3.3.2 Load Transient
  10. 4Design and Documentation Support
    1. 4.1 Design Files
      1. 4.1.1 Schematics
      2. 4.1.2 BOM
      3. 4.1.3 PCB Layout Recommendations
      4. 4.1.4 Altium Project
      5. 4.1.5 Gerber Files
      6. 4.1.6 Assembly Drawings
    2. 4.2 Documentation Support
    3. 4.3 Support Resources
    4. 4.4 Trademarks
  11. 5About the Authors

Highlighted Products

The TPS62933F is a high-efficiency, easy-to-use synchronous buck converter with a wide input voltage range of 3.8V to 30V, and supports up to 3A continuous output current and 0.8V to 22V output voltage.

The device employs fixed-frequency Peak Current Control mode for fast transient response and good line and load regulation. The optimized internal loop compensation eliminates external compensation components over a wide range of output voltage and operation frequency. Forced Continuous Conduction Mode (FCCM) keeps switching frequency at a constant level over the entire load range, which is designed for applications requiring tight control of the switching frequency and output voltage ripple under light load. The switching frequency can be set by the configuration of the RT pin in the range of 200kHz to 2.2MHz, which allows the user to optimize system efficiency, filtering size, and bandwidth. The soft-start time can be adjusted by the external capacitor at the SS pin, which can minimize the inrush current when driving large capacitive load.

The device provides complete protections including OTP, OVP, UVLO, cycle-by-cycle OC limit, and UVP with Hiccup mode. This device is in a small SOT583 (1.6mm × 2.1mm) package with 0.5mm pin pitch, and has an optimized pin-out for easy PCB layout and promotes good EMI performance.