SLVSIC8 December   2025 TPSM852892

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 Diagram
    3. 6.3 Feature Description
      1. 6.3.1  VCC Power Supply
      2. 6.3.2  EXTVCC Power Supply
      3. 6.3.3  Input Undervoltage Lockout
      4. 6.3.4  Enable and Programmable UVLO
      5. 6.3.5  Soft Start
      6. 6.3.6  Shutdown
      7. 6.3.7  Switching Frequency
      8. 6.3.8  Switching Frequency Dithering
      9. 6.3.9  Inductor Current Limit
      10. 6.3.10 Internal Charge Path
      11. 6.3.11 Output Voltage Setting
      12. 6.3.12 Output Current Monitoring and Cable Voltage Droop Compensation
      13. 6.3.13 Output Current Limit
      14. 6.3.14 Overvoltage Protection
      15. 6.3.15 Output Short Circuit Protection
      16. 6.3.16 Power Good
      17. 6.3.17 Constant Current Output Indication
      18. 6.3.18 Thermal Shutdown
    4. 6.4 Device Functional Modes
      1. 6.4.1 PWM Mode
      2. 6.4.2 Power Save Mode
  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 Switching Frequency
        2. 7.2.2.2 Output Voltage Setting
        3. 7.2.2.3 Input Capacitor
        4. 7.2.2.4 Output Capacitor
        5. 7.2.2.5 Output Current Limit
        6. 7.2.2.6 Loop Stability
      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 Device Support
      1. 8.1.1 Third-Party Products Disclaimer
    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

  • ZEN 2 Switcher
    • Facilitates CISPR 32 class B compliance
    • Integrated VIN, VOUT, BOOT1 and BOOT2 bypass capacitors to reduce EMI
    • Optimized pinout for minimal loop inductance
    • Optional programmable spread spectrum
    • Fix-frequency control with prgrammable switching frequency
  • Wide input and output voltage range
    • Wide input voltage range: 3.0V to 36V
    • Programmable output voltage range: 0.8V to 22V
    • ±1% reference voltage accuracy
    • Adjustable output voltage compensation for voltage droop over the cable
    • ±5% accurate output current monitoring
  • High efficiency over entire load range
    • 96% efficiency at VIN = 12V, VOUT = 20V and IOUT = 2.5A
    • Programmable PFM and FPWM mode at light load
  • Avoid frequency interference and crosstalk
    • Optional clock synchronization
    • Programmable switching frequency from 400kHz to 1MHz
  • Rich protection features
    • Output overvoltage protection
    • Hiccup mode for output short-circuit protection
    • Thermal shutdown protection
    • 6A average inductor current limit
  • Small solution size
    • 7.5mm × 7.7mm × 3.8mm QFN package