TIDUF34 july   2023

 

  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
    3. 2.3 Highlighted Products
      1. 2.3.1  DP83TD510E
      2. 2.3.2  AM2434
      3. 2.3.3  TPS2660
      4. 2.3.4  TPS79801-Q1
      5. 2.3.5  MSP430FR2476
      6. 2.3.6  TLV7031
      7. 2.3.7  ATL431
      8. 2.3.8  LM74700-Q1
      9. 2.3.9  TPS62825A
      10. 2.3.10 TPS61023
      11. 2.3.11 TLVM13630
      12. 2.3.12 LSF0108
  9. 3System Design Theory
    1. 3.1 Power Supply
    2. 3.2 PoDL PD and Coupling Network
    3. 3.3 Sitara Technology Module
    4. 3.4 Boot Mode
    5. 3.5 PHI and BoosterPack Headers
  10. 4Hardware, Software, Testing Requirements, and Test Results
    1. 4.1 Hardware Requirements
      1. 4.1.1 Boot Switch Configuration
      2. 4.1.2 Reference Design Start-Up
    2. 4.2 Software Requirements
      1. 4.2.1 PD Firmware
      2. 4.2.2 MCU Firmware
    3. 4.3 Test Setup
    4. 4.4 Test Results
  11. 5Design and Documentation Support
    1. 5.1 Design Files
      1. 5.1.1 Schematics
      2. 5.1.2 BOM
    2. 5.2 Tools and Software
    3. 5.3 Documentation Support
    4. 5.4 Support Resources
    5. 5.5 Trademarks
  12. 6About the Author

2.3.10 TPS61023

The TPS61023 device is a synchronous boost converter with 0.5-V ultra-low input voltage. The device provides a power supply design for portable equipment and smart devices powered by various batteries and super capacitors. The TPS61023 has typical 3.7-A valley switch current limit over full temperature range. With a wide input voltage range of 0.5 V to 5.5 V, the TPS61023 supports super capacitor backup power applications, which can deeply discharge the super capacitor.

The TPS61023 operates at 1-MHz switching frequency when the input voltage is above 1.5 V. The switching frequency decreases gradually to 0.5 MHz when the input voltage is below 1.5 V down to 1 V. The TPS61023 enters power-save mode at light load condition to maintain high efficiency over the entire load current range. The TPS61023 consumes a 20-µA quiescent current from VOUT in light load condition. During shutdown, the TPS61023 is completely disconnected from the input power and only consumes a 0.1-µA current to achieve long battery life. The TPS61023 has 5.7-V output overvoltage protection, output short circuit protection, and thermal shutdown protection.

The TPS61023 offers a very small design size with 1.2-mm × 1.6-mm SOT563 (DRL) package and minimum amount of external components.