SNVSA02A January   2016  – December 2016 LM5140-Q1

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Switching Characteristics
    7. 6.7 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  High Voltage Start-up Regulator
      2. 7.3.2  VCC Regulator
      3. 7.3.3  Oscillator
      4. 7.3.4  SYNIN and SYNOUT
      5. 7.3.5  Enable
      6. 7.3.6  Power Good
      7. 7.3.7  Output Voltage
      8. 7.3.8  Minimum Output Voltage Adjustment
      9. 7.3.9  Current Sense
      10. 7.3.10 DCR Current Sensing
      11. 7.3.11 Error Amplifier and PWM Comparator
      12. 7.3.12 Slope Compensation
    4. 7.4 Device Functional Modes
      1. 7.4.1 Hiccup Mode Current Limiting
      2. 7.4.2 Standby Mode
      3. 7.4.3 Soft Start
      4. 7.4.4 Diode Emulation
      5. 7.4.5 High and low-side Drivers
  8. 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  Inductor Calculation
        2. 8.2.2.2  Current Sense Resistor
        3. 8.2.2.3  Output Capacitor
        4. 8.2.2.4  Input Filter
        5. 8.2.2.5  EMI Filter Design
        6. 8.2.2.6  MOSFET Selection
        7. 8.2.2.7  Driver Slew Rate Control
        8. 8.2.2.8  Sub-Harmonic Oscillation
        9. 8.2.2.9  Control Loop
        10. 8.2.2.10 Error Amplifier
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Receiving Notification of Documentation Updates
    2. 11.2 Community Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

12 Mechanical, Packaging, and Orderable Information

The following pages include mechanical, packaging, and orderable information. This information is the most current data available for the designated devices. This data is subject to change without notice and revision of this document. For browser-based versions of this data sheet, refer to the left-hand navigation.