TIDUC56 March   2022

 

  1.   Description
  2.   Resources
  3.   Features
  4.   Applications
  5.   Design Images
  6. 1System Description
  7. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
    3. 2.3 Highlighted Features
    4. 2.4 System Design Theory
  8. 3Hardware Requirements, Test Setup, and Test Results
    1. 3.1 Hardware Requirements
    2. 3.2 Test Setup
    3. 3.3 Test Results
  9. 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
        1. 4.1.3.1 Layout Prints
      4. 4.1.4 Altium Projects
      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
  10. 5About the Author

1 System Description

The TIDA-050056 is designed by using the TPS629210-Q1 high efficiency and low IQ DC/DC Buck converter. The design is optimized for small total solution size, low BOM count, high efficiency, best thermal performance and lowest quiescent current possible. TPS629210-Q1 allows high switching frequency that enables small component selection without compromising on efficiency. The internal feedback (VSET) feature eliminates need of external feedback resistors. Small size and less pin count reduces external component counts. This design is ideal for applications where is limited space such as smart lock, wearable devices and so on. The efficiency and low IQ are ideal for battery operating systems. The design allows to efficiently use the battery power and extend its life time.

Table 1-1 Key System Specifications
Parameter Min Typ Max Unit
Input Voltage 5 12 17 V
Output Voltage 3.267 3.3 3.333 V
Output Current 0 1 A
Switching Frequency 2.5 MHz
Operating Quiescent Current 4 μA
Junction Temperature -40 150 °C
Output Discharge Enabled