SLVSGS9G March   2023  – October 2025 TPS61299

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison Table
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 System Characteristics
    7. 6.7 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  Boost Control Operation
      2. 7.3.2  Version Detection
      3. 7.3.3  Under-voltage Lockout
      4. 7.3.4  Switching Frequency
      5. 7.3.5  Average Input Current Limit
      6. 7.3.6  Enable and Disable
      7. 7.3.7  Soft-Start Timing
      8. 7.3.8  Down Mode
      9. 7.3.9  Pass-Through Operation
      10. 7.3.10 Output Short-to-Ground Protection
      11. 7.3.11 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Fast Load Transient Mode and Normal Mode
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application-Li-ion Battery to 5V Boost Converter Under Fast Mode
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Maximum Output Current
        2. 8.2.2.2 Inductor Selection
        3. 8.2.2.3 Output Capacitor Selection
        4. 8.2.2.4 Input Capacitor Selection
      3. 8.2.3 Application Curves
    3. 8.3 Typical Application-Li-ion Battery to 5V Boost Converter Under Normal Mode
      1. 8.3.1 Design Requirements
      2. 8.3.2 Application Curves
    4. 8.4 TPS61299xA Typical Application-Li-ion Battery to 5V Boost Converter Under Normal Mode
      1. 8.4.1 Design Requirements
      2. 8.4.2 Application Curves
    5. 8.5 Power Supply Recommendations
    6. 8.6 Layout
      1. 8.6.1 Layout Guidelines
      2. 8.6.2 Layout Example
    7. 8.7 Thermal Information
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Third-Party Products Disclaimer
    2. 9.2 Documentation Support
      1. 9.2.1 Related Documentation
    3. 9.3 Receiving Notification of Documentation Updates
    4. 9.4 Support Resources
    5. 9.5 Trademarks
    6. 9.6 Electrostatic Discharge Caution
    7. 9.7 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

8.4 TPS61299xA Typical Application-Li-ion Battery to 5V Boost Converter Under Normal Mode

TPS61299xA is auto pass through when disabled, but after start up, the function is the same with TPS61299x device.The A version device also support normal mode and fast mode operation. Set the VSEL according to Table 8-4 to select different target output voltage during fast mode operation. TI recommends to add a tantalum electrolytic capacitor of 150µF to 220µF to depress the inverse current during the shutdown process. Table 8-4 lists the design parameters.

TPS61299 TPS61299A TPS61299A 3.6V Input Source to 5V Boost Converter Under Normal Mode Figure 8-23 TPS61299A 3.6V Input Source to 5V Boost Converter Under Normal Mode