SNVS487E December   2006  – January 2015 LM27313 , LM27313-Q1

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: LM27313
    3. 6.3 ESD Ratings: LM27313-Q1
    4. 6.4 Recommended Operating Conditions
    5. 6.5 Thermal Information
    6. 6.6 Electrical 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
    4. 7.4 Device Functional Modes
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Application Circuit VIN=5.0 V, VOUT=12.0 V, Iload=250 mA
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1  Selecting the External Capacitors
          2. 8.2.1.2.2  Selecting the Output Capacitor
          3. 8.2.1.2.3  Selecting the Input Capacitor
          4. 8.2.1.2.4  Feed-Forward Compensation
          5. 8.2.1.2.5  Selecting Diodes
          6. 8.2.1.2.6  Setting the Output Voltage
          7. 8.2.1.2.7  Duty Cycle
          8. 8.2.1.2.8  Inductance Value
          9. 8.2.1.2.9  Maximum Switch Current
          10. 8.2.1.2.10 Calculating Load Current
          11. 8.2.1.2.11 Design Parameters VSW and ISW
          12. 8.2.1.2.12 Minimum Inductance
          13. 8.2.1.2.13 Inductor Suppliers
          14. 8.2.1.2.14 Shutdown Pin Operation
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Application Circuit VIN=5.0V, VOUT=20.0V, Iload=150mA
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
        3. 8.2.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
    3. 10.3 Thermal Considerations
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
    2. 11.2 Related Links
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

5 Pin Configuration and Functions

SOT-23 Package
5-Pin
(Top View)
20216802.png

Pin Functions

PIN I/O(1) DESCRIPTION
NO. NAME
1 SW O Drain of the internal FET switch.
2 GND G Analog and power ground.
3 FB I Feedback point that connects to external resistive divider to set VOUT.
4 SHDN I Shutdown control input. Connect to VIN if this feature is not used.
5 VIN I/P Analog and power input.
(1) I: Input Pin, O: Output Pin, P: Power Pin, G: Ground Pin
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