SNVS227H February   2003  – January 2015 LP3872 , LP3875

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 Load Voltage Sense
      3. 7.3.3 Short-Circuit Protection
      4. 7.3.4 Low Dropout Voltage
    4. 7.4 Device Functional Modes
      1. 7.4.1 Shutdown Mode
      2. 7.4.2 Active Mode
      3. 7.4.3 ERROR Flag Operation
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Dropout Voltage
      2. 8.1.2 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 Power Dissipation and Device Operation
        2. 8.2.2.2 External Capacitors
        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 Turnon Characteristics for Output Voltages Programmed to 2 V or Less
        6. 8.2.2.6 RFI/EMI Susceptibility
        7. 8.2.2.7 Output Noise
      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 Links
    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

5 Pin Configuration and Functions

NDH Package
5-Pin TO-220
Top View
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KTT Package
5-Pin DDPAK/TO-263
Top View
20063306.gif
NDC Package
5-Pin SOT-223
Top View
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Pin Functions

PIN I/O DESCRIPTION
NAME NUMBER
LP3872 LP3875
TO-220
DDPAK/TO-263		 SOT-223 TO-220
DDPAK/TO-263		 SOT-223
SD 1 1 1 1 I Shutdown
IN 2 2 2 2 I Input supply
OUT 4 3 4 3 O Output voltage
ERROR 5 4 — — O Error flag
SENSE — — 5 4 I Remote voltage sense
GND 3 5 3 5 — Ground