SNVSAG4B November   2015  – December 2024 LMR14020-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  Fixed Frequency Peak Current Mode Control
      2. 6.3.2  Slope Compensation
      3. 6.3.3  Sleep Mode
      4. 6.3.4  Low Dropout Operation and Bootstrap Voltage (BOOT)
      5. 6.3.5  Adjustable Output Voltage
      6. 6.3.6  Enable and Adjustable Undervoltage Lockout
      7. 6.3.7  External Soft-start
      8. 6.3.8  Switching Frequency and Synchronization (RT/SYNC)
      9. 6.3.9  Power Good (PGOOD)
      10. 6.3.10 Overcurrent and Short-Circuit Protection
      11. 6.3.11 Overvoltage Protection
      12. 6.3.12 Thermal Shutdown
    4. 6.4 Device Functional Modes
      1. 6.4.1 Shutdown Mode
      2. 6.4.2 Active Mode
      3. 6.4.3 CCM Mode
      4. 6.4.4 Light Load Operation
  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 Output Voltage Set-Point
        2. 7.2.2.2 Switching Frequency
        3. 7.2.2.3 Output Inductor Selection
        4. 7.2.2.4 Output Capacitor Selection
        5. 7.2.2.5 Schottky Diode Selection
        6. 7.2.2.6 Input Capacitor Selection
        7. 7.2.2.7 Bootstrap Capacitor Selection
        8. 7.2.2.8 Soft-start Capacitor Selection
      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 Documentation Support
      1. 8.2.1 Related Documentation
      2. 8.2.2 Related Products
    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

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

9 Revision History

Changes from Revision A (February 2016) to Revision B (December 2024)

  • Updated the numbering format for tables, figures, and cross-references throughout the documentGo
  • Updated the document titleGo
  • Added approved nouns after the SIMPLE SWITCHER trademark throughout the documentGo
  • Added new row for "Fixed 5V output option" in the Features listGo
  • Added LMR14020SSQ5DDARQ1 to the Device Information tableGo
  • Added description of "Connect to VOUT directly for fixed output" in the FB row in the Pin Functions tableGo
  • Changed the MAX voltage rating of DDA package for BOOT to SW from 6.5V to 5.5V, and FB to GND from 7V to 5.5VGo
  • Changed thermal metrics of DDA package: RθJA from 42.5 to 43.2, ψJT from 9.9 to 5.2, ψJB 25.4 to 16.4, RθJC(top) from 56.1 to 52.1, RθJC(bot) from 3.8 to 7.8, RθJB from 25.5 to 16.4Go
  • Deleted the test condition of "BOOT to SW = 5.8 V" on parameter RDS_ON Go
  • Added new rows for Fixed 5VOUT Go
  • Deleted the test condition of "BOOT to SW = 5.8 V" on parameter TON_MIN Go

Changes from Revision * (November 2015) to Revision A (February 2016)

  • Added DPR package informationGo
  • Added new column for WSON packageGo
  • Added new row for PGOODGo
  • Added new row for PGOODGo
  • Added new section for PGOODGo
  • Added PGOOD sectionGo