SNVS376F October   2005  – May 2016 LM5010A , LM5010A-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: LM5010A
    3. 6.3 ESD Ratings: LM5010A-Q1, LM5010-Q0
    4. 6.4 Recommended Operating Conditions
    5. 6.5 Thermal Information
    6. 6.6 Electrical Characteristics
    7. 6.7 Switching Characteristics
    8. 6.8 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 Control Circuit Overview
      2. 7.3.2 Start-Up Regulator (VCC)
      3. 7.3.3 Regulation Comparator
      4. 7.3.4 Overvoltage Comparator
      5. 7.3.5 ON-Time Control
      6. 7.3.6 Soft Start
      7. 7.3.7 N-Channel Buck Switch and Driver
      8. 7.3.8 Current Limit
      9. 7.3.9 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Shutdown
  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 Component Selection
          1. 8.2.2.1.1  R1 and R2
          2. 8.2.2.1.2  RON, FS
          3. 8.2.2.1.3  L1
          4. 8.2.2.1.4  RCL
          5. 8.2.2.1.5  C1
          6. 8.2.2.1.6  C2 and R3
          7. 8.2.2.1.7  C3
          8. 8.2.2.1.8  C4
          9. 8.2.2.1.9  C5
          10. 8.2.2.1.10 C6
          11. 8.2.2.1.11 D1
        2. 8.2.2.2 Low Output Ripple Configurations
        3. 8.2.2.3 Increasing The Current Limit Threshold
      3. 8.2.3 Application Curves
    3. 8.3 Do's and Don'ts
  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 Related Links
    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

9 Power Supply Recommendations

The LM5010Ax is designed to operate with an input power supply capable of supplying a voltage range from 6 V to 75 V. The input power supply must be well-regulated and capable of supplying sufficient current to the regulator during peak load operation. Also, like in all applications, the power-supply source impedance must be small compared to the module input impedance to maintain the stability of the converter.