SNOS965J June   2001  – December 2015 LM2611

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
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Cuk Converter
      2. 7.3.2 Output and Input Inductor
      3. 7.3.3 Switch Current Limit
      4. 7.3.4 Input Capacitor
      5. 7.3.5 Output Capacitor
      6. 7.3.6 Improving Transient Response and Compensation
    4. 7.4 Device Functional Modes
      1. 7.4.1 Hysteretic Mode
        1. 7.4.1.1 Thermal Shutdown
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Cuk Converter With Integrated Switch
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
      2. 8.2.2 5-V to -5-V Inverting Converter
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Application Curves
      3. 8.2.3 9-V to -5-V Inverting Converter
        1. 8.2.3.1 Design Requirements
        2. 8.2.3.2 Application Curve
      4. 8.2.4 12-V to -5-V Inverting Converter
        1. 8.2.4.1 Design Requirements
        2. 8.2.4.2 Application Curve
      5. 8.2.5 LM2611 Operating With Separate Power and Biasing Supplies
        1. 8.2.5.1 Design Requirements
        2. 8.2.5.2 Detailed Design Procedure
          1. 8.2.5.2.1 Split Supply Operation
      6. 8.2.6 Shutdown and Soft-Start
        1. 8.2.6.1 Design Requirements
        2. 8.2.6.2 Detailed Design Procedure
          1. 8.2.6.2.1 Shutdown and Soft-Start
        3. 8.2.6.3 Application Curves
      7. 8.2.7 High Duty Cycle and Load Current
        1. 8.2.7.1 Design Requirements
        2. 8.2.7.2 Detailed Design Procedure
          1. 8.2.7.2.1 High Duty Cycle and Load Current Operation
  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 Community Resources
    2. 11.2 Trademarks
    3. 11.3 Electrostatic Discharge Caution
    4. 11.4 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 power supply must never exceed the absolute maximum rating of the device given in Absolute Maximum Ratings. If the regulator is connected to the input supply through long wires or PCB traces, special care is required to achieve good performance. The parasitic inductance and resistance of the input cables can have an adverse effect on the operation of the regulator. The parasitic inductance, in combination with the low ESR ceramic input capacitors, can form an under-damped resonant circuit. This circuit may cause overvoltage transients at the VIN pin, each time the input supply is cycled on and off.