SLVSKC2A October   2025  – December 2025 TPS7E81

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagrams
    3. 6.3 Feature Description
      1. 6.3.1 Enable (EN)
      2. 6.3.2 Dropout Voltage
      3. 6.3.3 Undervoltage Lockout
      4. 6.3.4 Thermal Shutdown
      5. 6.3.5 Foldback Current Limit
      6. 6.3.6 Power Limit
      7. 6.3.7 Output Pulldown
    4. 6.4 Device Functional Modes
      1. 6.4.1 Device Functional Mode Comparison
      2. 6.4.2 Normal Operation
      3. 6.4.3 Dropout Operation
      4. 6.4.4 Disabled
  8. 7 Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 Adjustable Device Feedback Resistor Selection
      2. 7.1.2 Recommended Capacitor Types
      3. 7.1.3 Input and Output Capacitor Selection
      4. 7.1.4 Reverse Current
      5. 7.1.5 Feed-Forward Capacitor
      6. 7.1.6 Dropout Voltage
      7. 7.1.7 Estimating Junction Temperature
      8. 7.1.8 Power Dissipation (PD)
      9. 7.1.9 Power Dissipation Versus Ambient Temperature
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Choose Feedback Resistors
      3. 7.2.3 Power Supply Recommendations
      4. 7.2.4 Layout
        1. 7.2.4.1 Layout Guidelines
        2. 7.2.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Development Support
      2. 8.1.2 Device Nomenclature
    2. 8.2 Documentation Support
      1. 8.2.1 Related Documentation
    3. 8.3 Receiving Notification of Documentation Updates
    4. 8.4 Support Resources
    5. 8.5 Trademarks
    6. 8.6 Electrostatic Discharge Caution
    7. 8.7 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

1 Features

  • Input voltage range: 3.0V to 40V (42V max)
  • Available output voltage options:
    • Fixed: 1.8V to 12V
    • Adjustable: 1.2V to 38V
  • Output current: Up to 150mA
  • ±1.2% accuracy across line, load and temperature
  • Ultra-low IQ: 2.8μA at IOUT = 0mA
  • Stable with 2.2μF or larger ceramic capacitors
    • ESR range: 0Ω to 1Ω
  • Dropout voltage: 450mV (typical) at 150mA
  • High PSRR:
    • 70dB at 1kHz
    • 45dB at 100kHz
  • Over-current, over-power and over-temperature limiting
  • Package:
    • 5-pin SOT-23 (DBV) [RθJA: 190.9°C/W]
    • 6-pin WSON (DRV) [RθJA: 90.2°C/W]
  • Operating junction temperature: –40°C to +125°C