SNVS252H September   2003  – November 2018 LM5007

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Typical Application Schematic
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin 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 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 Hysteretic Control Circuit Overview
      2. 7.3.2 High-Voltage Bias Supply Regulator
      3. 7.3.3 Overvoltage Comparator
      4. 7.3.4 On-Time Generator and Shutdown
      5. 7.3.5 Overcurrent Protection
      6. 7.3.6 N-Channel Buck Switch and Driver
      7. 7.3.7 Thermal Protection
      8. 7.3.8 Minimum Load Current
      9. 7.3.9 Ripple Configuration
    4. 7.4 Device Functional Modes
      1. 7.4.1 Standby Mode with VIN
      2. 7.4.2 Shutdown Mode
  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 Custom Design With WEBENCH® Tools
        2. 8.2.2.2 Custom Design With Excel Quickstart Tool
        3. 8.2.2.3 Feedback Resistors, RFB1 and RFB2
        4. 8.2.2.4 Switching Frequency Selection, RON
        5. 8.2.2.5 Buck Inductor, L1
        6. 8.2.2.6 Output Capacitor, COUT
        7. 8.2.2.7 Type I Ripple Circuit, RC
        8. 8.2.2.8 Input Capacitor, CIN
        9. 8.2.2.9 Current Limit, RCL
      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 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
      2. 11.1.2 Custom Design With WEBENCH® Tools
      3. 11.1.3 Development Support
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
        1. 11.2.1.1 PCB Layout Resources
        2. 11.2.1.2 Thermal Design Resources
    3. 11.3 Community Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

7.4.1 Standby Mode with VIN

The LM5007 is intended to operate with input voltages above 9 V. The minimum operating input voltage is determined by the VCC undervoltage lockout threshold of 6.3 V (typ). If VIN is too low to support a VCC voltage greater than the VCC UVLO threshold, the converter switches to its standby mode with the buck switch in the off state.