SLUSFD2B September   2023  – March 2024 TPSM861252 , TPSM861253 , TPSM861257

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Family Devices
  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 PWM Operation and D-CAP3™ Control Mode
      2. 7.3.2 Eco-mode Control
      3. 7.3.3 Soft Start and Prebiased Soft Start
      4. 7.3.4 Overvoltage Protection
      5. 7.3.5 Frequency
      6. 7.3.6 Large Duty Operation
      7. 7.3.7 Current Protection and Undervoltage Protection
      8. 7.3.8 Undervoltage Lockout (UVLO) Protection
      9. 7.3.9 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Eco-mode Operation
      2. 7.4.2 FCCM 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
        1. 8.2.2.1 Custom Design with WEBENCH® Tools
        2. 8.2.2.2 Output Voltage Resistors Selection
        3. 8.2.2.3 Output Filter Selection
        4. 8.2.2.4 Input Capacitor Selection
        5. 8.2.2.5 Enable Circuit
      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 Development Support
        1. 9.1.1.1 Custom Design with WEBENCH® Tools
    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)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

8.2.3 Application Curves

The following data is tested With VIN = 12V, VOUT = 3.3V, TA = 25°C, unless otherwise specified.

GUID-20230908-SS0I-FH9S-XCVB-RZGTHVBMMXW4-low.svgFigure 8-2 TPSM861253 Load Regulation vs Loading
GUID-20230907-SS0I-VKST-CJZV-ZSQ5TTPZSRZB-low.svgFigure 8-4 TPSM861253 Output Voltage Ripple at 1A Loading
GUID-20230907-SS0I-KQ2Q-N3S8-KTDCKBPCRM3T-low.svgFigure 8-6 Start-Up With VIN Rising, IOUT = 1A
GUID-20230907-SS0I-DBRC-QLCN-KV3GHPNPSX1K-low.svgFigure 8-8 Start-Up Through EN, IOUT = 1A
GUID-20230907-SS0I-91FJ-DKSD-XD65J1DNRBDZ-low.svgFigure 8-10 Normal Operation to Output Hard Short
GUID-20230907-SS0I-2XNZ-NGX2-PHJ6LGVWCGZL-low.svgFigure 8-3 TPSM861253 Line Regulation vs VIN at 1A Loading
GUID-20230908-SS0I-QGF2-SX54-GGCT4JLSCQCC-low.svgFigure 8-5 TPSM861253 Transient Response With 0A to 1A
GUID-20230907-SS0I-2WVZ-KHZF-QHRVXVJXKMB7-low.svgFigure 8-7 Shutdown With VIN Falling, IOUT = 1A
GUID-20230907-SS0I-HXLH-BZ6F-JXDQMCPZBJFD-low.svgFigure 8-9 Shutdown Through EN, IOUT = 1A
GUID-20230908-SS0I-P2C8-7L1W-KXSKGVKCVRDV-low.svgFigure 8-11 Output Hard Short Hiccup