SLVSHP0 July   2024 TLVM14404 , TLVM14406

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 System Characteristics
    7. 6.7 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 (VIN1, VIN2)
      2. 7.3.2  Enable EN Pin and Use as VIN UVLO
      3. 7.3.3  CONFIG Device Configuration Pin
      4. 7.3.4  Adjustable Switching Frequency
      5. 7.3.5  Adjustable Output Voltage (FB)
      6. 7.3.6  Input Capacitors
      7. 7.3.7  Output Capacitors
      8. 7.3.8  Power-Good Output Voltage Monitoring
      9. 7.3.9  Bias Supply Regulator (VCC, VOSNS)
      10. 7.3.10 Overcurrent Protection (OCP)
      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
  9. 8 Applications and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Design 1 – High-efficiency, Dual Output 5V at 3A, 3.3V at 3A, Synchronous Buck Regulator
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Custom Design With WEBENCH® Tools
          2. 8.2.1.2.2 Output Voltage Setpoint
          3. 8.2.1.2.3 Switching Frequency Selection
          4. 8.2.1.2.4 Input Capacitor Selection
          5. 8.2.1.2.5 Output Capacitor Selection
          6. 8.2.1.2.6 Other Considerations
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Design 2 – High-efficiency, 6A, Synchronous Buck Regulator for Industrial Applications
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
          1. 8.2.2.2.1 Output Voltage Setpoint
          2. 8.2.2.2.2 Switching Frequency Selection
          3. 8.2.2.2.3 Input Capacitor Selection
          4. 8.2.2.2.4 Output Capacitor Selection
          5. 8.2.2.2.5 Other Connections
        3. 8.2.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
        1. 8.4.1.1 Thermal Design and Layout
      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. 9.1.2 Development Support
        1. 9.1.2.1 Custom Design With WEBENCH® Tools
    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

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information
8.2.1.2.2 Output Voltage Setpoint

The feedback resistor divider equation can be used to calculate the output voltage setpoint for both outputs. Recommended values for RFB1T and RFB2T is 100kΩ for improved noise immunity compared to 1MΩ and reduced current consumption compared to lower resistance values. Calculate RFB1B and RFB2B using the following equation:

Equation 9. RFBB= RFBT ×  VREFVOUT - VREF

Choose the closest standard value of 19kΩ for RFB1B which correlates to a VOUT1 of 5V. Additionally, choose the closest standard value of 32kΩ for RFB2B which correlates to a VOUT2 of 3.3V.