SLVSHL0F June   2024  – December 2025 TPSM81033

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 System Characteristics
    7. 5.7 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1  Undervoltage Lockout
      2. 6.3.2  Enable and Soft Start
      3. 6.3.3  Setting the Output Voltage
      4. 6.3.4  Current Limit Operation
      5. 6.3.5  Pass-Through Operation
      6. 6.3.6  Power Good Indicator
      7. 6.3.7  Implement Output Discharge by PG function
      8. 6.3.8  Overvoltage Protection
      9. 6.3.9  Output Short-to-Ground Protection
      10. 6.3.10 Thermal Shutdown
    4. 6.4 Device Functional Modes
      1. 6.4.1 PWM Mode
      2. 6.4.2 Power-Save Mode
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Setting the Output Voltage
        2. 7.2.2.2 Output Capacitor Selection
        3. 7.2.2.3 Input Capacitor Selection
      3. 7.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
      3. 7.4.3 Thermal Considerations
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Third-Party Products Disclaimer
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information
    1.     55

3 Description

The TPSM81033 is a synchronous boost module, with integrated inductor, and optional spread spectrum frequency modulation to minimize EMI emissions while delivering high efficiency at high switching frequencies. The device provides a power supply option for portable equipment and smart devices powered by batteries and other power supply. The TPSM81033 has 2A (typical) valley switch current limit. The power module uses TI's MagPack packaging technology to integrate a synchronous boost converter and an inductor to simplify design, reduce external components, lower the EMI emissions and save PCB area.

The TPSM81033 uses adaptive constant on-time valley-current-control topology to regulate the output voltage and operates at 2.4MHz switching frequency. There are two optional modes at light load by configuring the MODE pin: auto PFM mode and forced PWM to balance the efficiency and noise immunity in light load. The TPSM81033 consumes a 20µA quiescent current from AVIN at light load condition. During shutdown, the TPSM81033 is completely disconnected from the input power and only consumes a 0.1µA current to achieve long battery life. The TPSM81033 has 5.75V output overvoltage protection, output short circuit protection, and thermal shutdown protection. The TPSM81033 offers a very small size with a 2.6mm × 2.5mm QFN-FCMOD (9) package and minimum amount of external components.

Package Information
PART NUMBER PACKAGE(1) BODY SIZE (NOM)
TPSM81033 VCD (QFN-FCMOD, 9) 2.60mm × 2.50mm
(1) For all available packages, see the orderable addendum at the end of the data sheet.
TPSM81033 Typical Application Circuit Typical Application Circuit