SNVS247E September   2003  – August 2016 LP3875-ADJ

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 Shutdown (SD)
      2. 7.3.2 Short-Circuit Protection
      3. 7.3.3 Dropout Voltage
    4. 7.4 Device Functional Modes
      1. 7.4.1 Shutdown Mode
      2. 7.4.2 Active Mode
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Reverse Current Path
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1  External Capacitors
        2. 8.2.2.2  CFF (Feed Forward Capacitor)
        3. 8.2.2.3  Selecting a Capacitor
        4. 8.2.2.4  Capacitor Characteristics
          1. 8.2.2.4.1 Ceramic
          2. 8.2.2.4.2 Tantalum
          3. 8.2.2.4.3 Aluminum
        5. 8.2.2.5  Setting The Output Voltage
        6. 8.2.2.6  Turnon Characteristics for Output Voltages Programmed to 2 V or Less
        7. 8.2.2.7  RFI/EMI Susceptibility
        8. 8.2.2.8  Output Noise
        9. 8.2.2.9  Power Dissipation
        10. 8.2.2.10 Estimating Junction Temperature
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Examples
  11. 11Device and Documentation Support
    1. 11.1 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

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订购信息

5 Pin Configuration and Functions

KTT Package
5-Pin DDPAK/TO-263
Top View
LP3875-ADJ KTT_pinout.gif
NDC Package
5-Pin SOT-223
Top View
LP3875-ADJ NDC_pinout.gif

Pin Functions

PIN I/O DESCRIPTION
NAME NUMBER
DDPAK/TO-263 SOT-223
ADJ 5 4 O The ADJ pin is used to set the regulated output voltage by connecting it to the external resistors R1 and R2.
GND 3 5 — Ground
IN 2 2 I Input supply
OUT 4 3 O Output voltage
SD 1 1 I Shutdown