SBVS449A June   2026  – August 2026 TPS7B7802-Q1

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 Timing Requirements - I2C Standard Mode
    7. 5.7 Timing Requirements - I2C Fast Mode
    8. 5.8 Timing Requirements - I2C Fast Mode Plus
    9. 5.9 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1  Input Under-Voltage Lockout (UVLO)
      2. 6.3.2  Enable
      3. 6.3.3  Output Voltage Setting
      4. 6.3.4  Soft Start
      5. 6.3.5  Voltage Monitoring
      6. 6.3.6  Current Monitoring
      7. 6.3.7  Reverse Current Protection
      8. 6.3.8  Current Limit
      9. 6.3.9  Junction Temperature Monitoring
      10. 6.3.10 Thermal Protection
      11. 6.3.11 Protection Features and Diagnostic Capabilities
      12. 6.3.12 NERR Pin
      13. 6.3.13 Blanking Time
      14. 6.3.14 Switch Mode
    4. 6.4 Device Functional Modes
      1. 6.4.1 Normal Operation
      2. 6.4.2 Dropout
      3. 6.4.3 Operation with VIN < 4.5V
      4. 6.4.4 Disable
    5. 6.5 Programming
      1. 6.5.1 I2C Interface
        1. 6.5.1.1 I2C Interface Speed
      2. 6.5.2 I2C Data Transfer Protocol
        1. 6.5.2.1 START and STOP
        2. 6.5.2.2 Logical 1's and 0's
        3. 6.5.2.3 Data Format
      3. 6.5.3 Address Frame
      4. 6.5.4 Write Cycle
      5. 6.5.5 Read Cycle
  8. 7 Register Map
    1. 7.1 Default Settings
    2. 7.2 Register Details
  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 Input and Output Capacitor Selection
        2. 8.2.2.2 Adjustable Device Feedback Resistor Selection
        3. 8.2.2.3 Feed-Forward Capacitor
        4. 8.2.2.4 Power Dissipation (PD)
        5. 8.2.2.5 Estimating Junction Temperature
      3. 8.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Development Support
      2. 9.1.2 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
    1.     80

1 Features

  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: -40℃ to 125℃, TA
    • Junction temperature; -40℃ to 150℃, TJ
  • Wide input voltage range:
    • Absolute maximum range: -40V to 45V
    • Operating range: 4.5V to 40V
  • Output voltage:
    • Wide range of output voltage can be set using external resistors: 2V to 40V
    • Output voltage range programmed using I2C without external resistors: 2V to 27.4V in 100mV steps
    • Power switch mode can be set using I2C (internal FB mode) or tying FB to GND (external FB resistor mode)
  • Supports up to 300mA of load current per channel
  • High accuracy current sense (≤ ±12.5%) to detect low load currents (≤25mA) without further calibration.
  • Adjustable current limit via I2C programming
  • Low dropout voltage: 315mV (max) at 100mA
  • Stable over a wide range of ceramic output capacitor values:
    • COUT Range: 4.7µF to 100µF
    • ESR Range : 1mΩ to 500mΩ
  • Integrated protection features:
    • Reverse current protection
    • Reverse polarity protection
    • Overtemperature protection
    • Protection against output short-circuit to ground and battery
  • Integrated diagnostic and monitoring features using I2C interface:
    • Input and Output voltage Monitoring
    • Load Current Monitoring
    • Junction Temperature monitoring
    • Open circuit detection
    • Output under-voltage and over-voltage detection.