SNVS181C April   2004  – August 2016 LM5033

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 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 (VIN and VCC)
      2. 7.3.2 Reference (REF)
      3. 7.3.3 PWM Comparator (COMP), Duty Cycle and Deadtime
      4. 7.3.4 Current Sense (CS)
      5. 7.3.5 Oscillator, Sync Capability (RT/SYNC)
      6. 7.3.6 Soft Start (SS)
      7. 7.3.7 OUT1 and OUT2
      8. 7.3.8 Thermal Protection
    4. 7.4 Device Functional Modes
  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 VIN
        2. 8.2.2.2 VCC
        3. 8.2.2.3 Soft Start (SS)
        4. 8.2.2.4 Current Sense (CS)
        5. 8.2.2.5 Oscillator, Sync Input (RT/SYNC)
        6. 8.2.2.6 Deadtime Adjustment
      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 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Receiving Notification of Documentation Updates
    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

9 Power Supply Recommendations

The VCC pin requires a local decoupling capacitor that is connected to GND. This capacitor ensures stability of the internal regulator from the VIN pin. The decoupling capacitor also provides the current pulses to drive the gates of the external MOSFETs through the driver output (OUT1 and OUT2) pins. The decoupling capacitor must be placed close to the VCC and GND pins, and must be tracked directly to the pins.