SLVSDD1E December   2017  – January 2019 TPS62800 , TPS62801 , TPS62802 , TPS62806 , TPS62807 , TPS62808

UNLESS OTHERWISE NOTED, this document contains PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Typical Application
      2.      Efficiency vs. IOUT at 1.2VOUT
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Smart Enable and Shutdown (EN)
      2. 8.3.2 Softstart
      3. 8.3.3 VSEL/MODE Pin
        1. 8.3.3.1 Output Voltage Selection (R2D Converter)
        2. 8.3.3.2 Mode Selection: Power Save Mode / Forced PWM Operation
      4. 8.3.4 Undervoltage Lockout (UVLO)
      5. 8.3.5 Switch Current Limit / Short Circuit Protection
      6. 8.3.6 Thermal Shutdown
      7. 8.3.7 Output Voltage Discharge
    4. 8.4 Device Functional Modes
      1. 8.4.1 Power Save Mode Operation
      2. 8.4.2 Forced PWM Mode Operation
      3. 8.4.3 100% Mode Operation
      4. 8.4.4 Optimized Transient Performance from PWM to PFM Mode Operation
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Custom Design With WEBENCH® Tools
        2. 9.2.2.2 Inductor Selection
        3. 9.2.2.3 Output Capacitor Selection
        4. 9.2.2.4 Input Capacitor Selection
      3. 9.2.3 Application Curves
    3. 9.3 System Examples
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Third-Party Products Disclaimer
    2. 12.2 Custom Design With WEBENCH® Tools
    3. 12.3 Related Links
    4. 12.4 Community Resources
    5. 12.5 Trademarks
    6. 12.6 Electrostatic Discharge Caution
    7. 12.7 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

8.4.2 Forced PWM Mode Operation

After the device has powered up and ramped up VOUT, the VSEL/MODE pin acts as an input. With a high level on VSEL/MODE pin, the device enters forced PWM Mode and operates with a constant switching frequency over the entire load range, even at very light loads. This reduces or eliminates interference with RF and noise sensitive circuits, but lowers efficiency at light loads.