SNVU944 March   2026 TPS7H1301-SP

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Device Information
    4. 1.4 Specification
  6. 2Hardware
    1. 2.1 Power Requirements
    2. 2.2 Jumper Information
    3. 2.3 Test Points
    4. 2.4 Best Practices
  7. 3Implementation Results
    1. 3.1 Startup
    2. 3.2 Shutdown
    3. 3.3 Charge Pump Operation
    4. 3.4 LDO Stability Plots
  8. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials (BOM)
  9. 5Compliance Information
    1. 5.1 Compliance and Certifications
  10. 6Additional Information
    1. 6.1 Trademarks
  11. 7Related Documentation

3.1 Startup

TPS7H1301EVM-CVAL EN Independently Driven HIGH Figure 3-1 EN Independently Driven HIGH.
TPS7H1301EVM-CVAL EN Tied to Rising VIN via Resistor Divider Figure 3-2 EN Tied to Rising VIN via Resistor Divider.

EN follows rising VIN. CPOUT turns on when EN passes the turn-on threshold, then continues to follow VIN as it rises further. VOUT turns on once the magnitude of CPOUT has reached ≅60-80% of the magnitude of VIN and the charge pump has exited frequency foldback mode.

TPS7H1301EVM-CVAL Power Good Assert - EN Independently Driven HIGH Figure 3-3 Power Good Assert - EN Independently Driven HIGH.
TPS7H1301EVM-CVAL Power Good Assert - EN Tied to Rising VIN via Resistor Divider Figure 3-4 Power Good Assert - EN Tied to Rising VIN via Resistor Divider. Because VIN is rising in this waveform, the PG output can be observed briefly in an undefined state while VIN is below VIN_MIN_PG (0.8V nominal).