SLVSDU9D February   2017  – June 2025 TPS7B63-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 Switching Characteristics
    7. 5.7 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 Device Enable (EN)
      2. 6.3.2 Adjustable Power-Good Threshold (PG, PGADJ)
      3. 6.3.3 Adjustable Power-Good Delay Timer (DELAY)
      4. 6.3.4 Undervoltage Shutdown
      5. 6.3.5 Current Limit
      6. 6.3.6 Thermal Shutdown
      7. 6.3.7 Integrated Watchdog
        1. 6.3.7.1 Window Watchdog (WTS, ROSC, FSEL and WRS)
        2. 6.3.7.2 Standard Watchdog (WTS, ROSC and FSEL)
        3. 6.3.7.3 Watchdog Service Signal and Watchdog Fault Outputs (WD and WDO)
        4. 6.3.7.4 ROSC Status Detection (ROSC)
        5. 6.3.7.5 Watchdog Enable (PG and WD_EN)
        6. 6.3.7.6 Watchdog Initialization
        7. 6.3.7.7 Window Watchdog Operation (WTS = Low)
        8. 6.3.7.8 Standard Watchdog Operation (WTS = High)
    4. 6.4 Device Functional Modes
      1. 6.4.1 Operation With Input Voltage Lower Than 4 V
      2. 6.4.2 Operation With Input Voltage Higher Than 4 V
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Input Capacitor
        2. 7.2.2.2 Output Capacitor
        3. 7.2.2.3 Power-Good Threshold
        4. 7.2.2.4 Power-Good Delay Period
        5. 7.2.2.5 Watchdog Setup
      3. 7.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Documentation Support
      1. 8.1.1 Related Documentation
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

1 Features

  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to 125°C, TA
  • Maximum output current: 300mA
  • 4V to 40V wide VIN input-voltage range with up to 45V transients
  • Fixed 3.3V and 5V outputs
  • Maximum dropout voltage: 400mV at 300mA
  • Stable with output capacitor in wide range of capacitance (4.7µF to 500µF) and ESR (0.001Ω to 20Ω)
  • Low quiescent current (I(Q)):
    • < 4µA when EN is low (shutdown mode)
    • 19µA typical at light loads with WD_EN high (watchdog disabled)
  • Configurable for window watchdog or standard watchdog
  • Open-to-closed window ratio configurable as 1:1 or 8:1
  • Fully adjustable watchdog period (from 10ms to 500ms)
  • 10% accurate watchdog period
  • Dedicated WD_EN pin to control watchdog ON-OFF
  • Fully adjustable power-good threshold and power-good delay period
  • Low input-voltage tracking to UVLO
  • Integrated fault protection
    • Overload current-limit protection
    • Thermal shutdown
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • 16-pin HTSSOP package