SLVSHG7A September   2024  – November 2024 TPSM82843

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 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 Smart Enable and Shutdown (EN)
      2. 7.3.2 Soft Start
      3. 7.3.3 VSET Pin: Output Voltage Selection
      4. 7.3.4 Undervoltage Lockout (UVLO)
      5. 7.3.5 Switch Current Limit, Short-Circuit Protection
      6. 7.3.6 Thermal Shutdown
      7. 7.3.7 Output Voltage Discharge
    4. 7.4 Device Functional Modes
      1. 7.4.1 Power Save Mode Operation
      2. 7.4.2 100% Mode Operation
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Third-Party Products Disclaimer
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
  • VCF|7
Thermal pad, mechanical data (Package|Pins)
Orderable Information

8.2 Typical Application

The following schematics show the typical application circuit for minimal footprint. The TPSM82843 has been designed to accommodate output capacitance values from 4μF (effective) to 25μF (effective). The output capacitance has influence on the application curves, especially light load efficiency and load step. A smaller output capacitance causes a higher switching frequency and lower efficiency at equal light load. This outcome can help however keeping the switching frequency out of the audio band. This outcome also results in a larger voltage change during load transients while a larger capacitance reduces the voltage change. The application curves have been taken with 10μF output capacitor which is equivalent to an effective capacitance of 8μF at VOUT of 1.2V with the output capacitor type in the BOM table.

TPSM82843 TPSM82843 Typical Application Circuit Figure 8-1 TPSM82843 Typical Application Circuit