SNVSCU9A May   2025  – November 2025 TPS7H4012-SEP , TPS7H4013-SEP

PRODMIX  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison Table
  6. 5 Device Options Table
  7. 6 Pin Configuration and Functions
  8. 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 Quality Conformance Inspection
    7. 7.7 Typical Characteristics
  9. 8 Parameter Measurement Information
  10. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 VIN and Power VIN Pins (VIN and PVIN)
      2. 9.3.2 Voltage Reference
      3. 9.3.3 Voltage Sensing and Setting VOUT
        1. 9.3.3.1 Minimum Output Voltage
        2. 9.3.3.2 Maximum Output Voltage
      4. 9.3.4 Enable
      5. 9.3.5 Power Good (PWRGD)
      6. 9.3.6 Adjustable Switching Frequency and Synchronization
        1. 9.3.6.1 Internal Clock Mode
        2. 9.3.6.2 External Clock Mode
      7. 9.3.7 Turn-On Behavior
        1. 9.3.7.1 Soft-Start (SS_TR)
        2. 9.3.7.2 Safe Start-Up Into Prebiased Outputs
        3. 9.3.7.3 Tracking and Sequencing
      8. 9.3.8 Protection Modes
        1. 9.3.8.1 Overcurrent Protection
          1. 9.3.8.1.1 High-Side 1 Overcurrent Protection (HS1)
          2. 9.3.8.1.2 High-Side 2 Overcurrent Protection (HS2)
          3. 9.3.8.1.3 COMP Shutdown
          4. 9.3.8.1.4 Low-Side Overcurrent Sinking Protection
        2. 9.3.8.2 Output Overvoltage Protection (OVP)
        3. 9.3.8.3 Thermal Shutdown
      9. 9.3.9 Error Amplifier and Loop Response
        1. 9.3.9.1 Error Amplifier
        2. 9.3.9.2 Power Stage Transconductance
        3. 9.3.9.3 Slope Compensation
        4. 9.3.9.4 Frequency Compensation
    4. 9.4 Device Functional Modes
  11. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1  Operating Frequency
        2. 10.2.2.2  Output Inductor Selection
        3. 10.2.2.3  Output Capacitor Selection
        4. 10.2.2.4  Input Capacitor Selection
        5. 10.2.2.5  Soft-Start Capacitor Selection
        6. 10.2.2.6  Rising VIN Set Point (Configurable UVLO)
        7. 10.2.2.7  Output Voltage Feedback Resistor Selection
        8. 10.2.2.8  Output Voltage Accuracy
        9. 10.2.2.9  Slope Compensation Requirements
        10. 10.2.2.10 Compensation Component Selection
        11. 10.2.2.11 Schottky Diode
      3. 10.2.3 Application Curve
      4. 10.2.4 Inverting Buck-Boost
    3. 10.3 Power Supply Recommendations
    4. 10.4 Layout
      1. 10.4.1 Layout Guidelines
      2. 10.4.2 Layout Example
  12. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Third-Party Products Disclaimer
      2. 11.1.2 Related Documentation
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Support Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  13. 12Revision History
  14. 13Mechanical, Packaging, and Orderable Information
    1.     82

9.3.9.1 Error Amplifier

The TPS7H401x device utilizes a transconductance error amplifier. The error amplifier compares the VSNS+ voltage to the internal VREF voltage reference.

The transconductance of the error amplifier is typically 1,650μS (μA/V). The frequency compensation network is connected between the COMP pin and GND. The error amplifier DC gain is typically 11,500V/V. The error amplifier output resistance is 7MΩ (typ).