SNVSCS7D April   2025  – November 2025 TPSM33606-Q1 , TPSM33610-Q1 , TPSM33620-Q1

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  Input Voltage Range
      2. 7.3.2  Output Voltage Selection
        1. 7.3.2.1 Adjustable Output Voltage Variants
        2. 7.3.2.2 Fixed Output Voltage Variants
      3. 7.3.3  Enable, Start-Up, and Shutdown
        1. 7.3.3.1 External UVLO through the EN Pin
      4. 7.3.4  External CLK SYNC
        1. 7.3.4.1 Pulse-Dependent MODE/SYNC Pin Control
      5. 7.3.5  Power-Good Output Operation
      6. 7.3.6  Internal LDO, VCC and VOUT/FB Input
      7. 7.3.7  Bootstrap Voltage and VBOOT-UVLO (BOOT Terminal)
      8. 7.3.8  Spread Spectrum
      9. 7.3.9  Soft Start and Recovery from Dropout
        1. 7.3.9.1 Recovery from Dropout
      10. 7.3.10 Overcurrent Protection (Hiccup Mode)
      11. 7.3.11 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Shutdown Mode
      2. 7.4.2 Standby Mode
      3. 7.4.3 Active Mode
        1. 7.4.3.1 CCM Mode
        2. 7.4.3.2 Auto Mode – Light-Load Operation
          1. 7.4.3.2.1 Diode Emulation
          2. 7.4.3.2.2 Frequency Reduction
        3. 7.4.3.3 FPWM Mode – Light-Load Operation
        4. 7.4.3.4 Minimum On-Time (High Input Voltage) Operation
        5. 7.4.3.5 Dropout
  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 Setting the Output Voltage
        3. 8.2.2.3 Input Capacitor Selection
        4. 8.2.2.4 Output Capacitor Selection
        5. 8.2.2.5 VCC
        6. 8.2.2.6 CFF Selection
        7. 8.2.2.7 Power-Good Signal
        8. 8.2.2.8 Maximum Ambient Temperature
        9. 8.2.2.9 Other Connections
      3. 8.2.3 Application Curves
    3. 8.3 Best Design Practices
    4. 8.4 Power Supply Recommendations
    5. 8.5 Layout
      1. 8.5.1 Layout Guidelines
        1. 8.5.1.1 Ground and Thermal Considerations
      2. 8.5.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Third-Party Products Disclaimer
      2. 9.1.2 Development Support
        1. 9.1.2.1 Custom Design With WEBENCH® Tools
      3. 9.1.3 Device Nomenclature
    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

7.3.1 Input Voltage Range

With a steady-state input voltage range from 3V to 36V, the TPSM336xx-Q1 device is intended for step-down conversions from typical 12V to 36V input supply rails, as example. The schematic circuit in Figure 7-1 shows all the necessary components to implement a TPSM336xx-Q1-based buck regulator using a single input supply.

TPSM33606-Q1 TPSM33610-Q1 TPSM33620-Q1 TPSM336xx-Q1 Schematic Diagram With Input Voltage Operating Range of 3V to 36V Figure 7-1 TPSM336xx-Q1 Schematic Diagram With Input Voltage Operating Range of 3V to 36V

Take extra care to confirm that the voltage at the VIN pin does not exceed the absolute maximum voltage rating of 40V during line or load transient events. Voltage ringing at the VIN pins that exceeds the absolute maximum ratings can damage the IC.