SNVS397E September   2005  – November 2016 LM5005

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 Shutdown and Standby
      3. 7.3.3 Oscillator and Synchronization Capability
      4. 7.3.4 Error Amplifier and PWM Comparator
      5. 7.3.5 RAMP Generator
      6. 7.3.6 Current Limit
      7. 7.3.7 Soft-Start Capability
      8. 7.3.8 MOSFET Gate Driver
    4. 7.4 Device Functional Modes
      1. 7.4.1 Shutdown Mode
      2. 7.4.2 Standby Mode
      3. 7.4.3 Light-Load Operation
      4. 7.4.4 Thermal Shutdown Protection
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Reducing Bias Power Dissipation
      2. 8.1.2 Input Voltage UVLO Protection
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1  Frequency Set Resistor (RT)
        2. 8.2.2.2  Inductor (LF)
        3. 8.2.2.3  Ramp Capacitor (CRAMP)
        4. 8.2.2.4  Output Capacitors (COUT)
        5. 8.2.2.5  Schottky Diode (DF)
        6. 8.2.2.6  Input Capacitors (CIN)
        7. 8.2.2.7  VCC Capacitor (CVCC)
        8. 8.2.2.8  Bootstrap Capacitor (CBST)
        9. 8.2.2.9  Soft Start Capacitor (CSS)
        10. 8.2.2.10 Feedback Resistors (RFB1 and RFB2)
        11. 8.2.2.11 RC Snubber (RS and CS)
        12. 8.2.2.12 Compensation Components (RC1, CC1, CC2)
        13. 8.2.2.13 Bill of Materials
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 PCB Layout for EMI Reduction
      2. 10.1.2 Thermal Design
      3. 10.1.3 Ground Plane Design
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Third-Party Products Disclaimer
    2. 11.2 Device Support
      1. 11.2.1 Development Support
    3. 11.3 Documentation Support
      1. 11.3.1 Related Documentation
        1. 11.3.1.1 PCB Layout Resources
        2. 11.3.1.2 Thermal Design Resources
    4. 11.4 Receiving Notification of Documentation Updates
    5. 11.5 Community Resources
    6. 11.6 Trademarks
    7. 11.7 Electrostatic Discharge Caution
    8. 11.8 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

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11 Device and Documentation Support

11.1 Third-Party Products Disclaimer

TI'S PUBLICATION OF INFORMATION REGARDING THIRD-PARTY PRODUCTS OR SERVICES DOES NOT CONSTITUTE AN ENDORSEMENT REGARDING THE SUITABILITY OF SUCH PRODUCTS OR SERVICES OR A WARRANTY, REPRESENTATION OR ENDORSEMENT OF SUCH PRODUCTS OR SERVICES, EITHER ALONE OR IN COMBINATION WITH ANY TI PRODUCT OR SERVICE.

11.2 Device Support

11.2.1 Development Support

For development support see the following:

11.3 Documentation Support

11.3.1 Related Documentation

For related documentation see the following:

11.3.1.1 PCB Layout Resources

11.3.1.2 Thermal Design Resources

11.4 Receiving Notification of Documentation Updates

To receive notification of documentation updates, navigate to the device product folder on ti.com. In the upper right corner, click on Alert me to register and receive a weekly digest of any product information that has changed. For change details, review the revision history included in any revised document.

11.5 Community Resources

The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of Use.

    TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help solve problems with fellow engineers.
    Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and contact information for technical support.

11.6 Trademarks

PowerPAD, E2E are trademarks of Texas Instruments.

WEBENCH is a registered trademark of TI.

All other trademarks are the property of their respective owners.

11.7 Electrostatic Discharge Caution

esds-image

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

11.8 Glossary

SLYZ022 — TI Glossary.

This glossary lists and explains terms, acronyms, and definitions.