SNVS576F August   2008  – February 2015 LM26003 , LM26003-Q1

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Typical Application Circuit
  5. 5 Revision History
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings: LM26003
    3. 7.3 ESD Ratings: LM26003-Q1
    4. 7.4 Recommended Operating Conditions
    5. 7.5 Thermal Information
    6. 7.6 Electrical Characteristics
    7. 7.7 Switching Characteristics
    8. 7.8 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 FPWM
      2. 8.3.2 Soft-Start
      3. 8.3.3 Current Limit
      4. 8.3.4 Frequency Adjustment and Synchronization
      5. 8.3.5 VBIAS
      6. 8.3.6 Low VIN Operation and UVLO
      7. 8.3.7 PGOOD
    4. 8.4 Device Functional Modes
      1. 8.4.1 Enable
      2. 8.4.2 Sleep Mode
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Setting Output Voltage
        2. 9.2.2.2 Inductor
        3. 9.2.2.3 Output Capacitor
        4. 9.2.2.4 Input Capacitor
        5. 9.2.2.5 Bootstrap
        6. 9.2.2.6 Catch Diode
        7. 9.2.2.7 Compensation
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
    3. 11.3 Thermal Considerations and TSD
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Third-Party Products Disclaimer
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Related Links
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

10 Power Supply Recommendations

The LM26003 device is designed to operate from various DC power supplies including a car battery. If so, VIN input should be protected from reversal voltage and voltage dump over 48 V. The impedance of the input supply rail should be low enough that the input current transient does not cause a drop below VIN UVLO level. If the input supply is connected by using long wires, additional bulk capacitance may be required in addition to normal input capacitor.