SNVS174I February   2003  – February 2015 LP3852 , LP3855

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Simplified Schematics
  5. 5 Revision History
  6. 6 Voltage Options
  7. 7 Pin Configuration and Functions
  8. 8 Specifications
    1. 8.1 Absolute Maximum Ratings
    2. 8.2 ESD Ratings
    3. 8.3 Recommended Operating Conditions
    4. 8.4 Thermal Information
    5. 8.5 Electrical Characteristics
    6. 8.6 Typical Characteristics
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagrams
    3. 9.3 Feature Description
      1. 9.3.1 SENSE Pin
      2. 9.3.2 SHUTDOWN (SD) Operation
      3. 9.3.3 Dropout Voltage
      4. 9.3.4 Reverse Current Path
      5. 9.3.5 Short-Circuit Protection
      6. 9.3.6 ERROR Flag Operation
    4. 9.4 Device Functional Modes
      1. 9.4.1 Operation with VOUT(TARGET) + 0.1 V ≤ VIN ≤ 7 V
      2. 9.4.2 Operation With SD Pin Control
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Applications
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1 External Capacitors
          1. 10.2.2.1.1 Input Capacitor
          2. 10.2.2.1.2 Output Capacitor
        2. 10.2.2.2 Operation with Ceramic Output Capacitors
        3. 10.2.2.3 Selecting A Capacitor
        4. 10.2.2.4 Capacitor Characteristics
          1. 10.2.2.4.1 Ceramic
          2. 10.2.2.4.2 Tantalum
          3. 10.2.2.4.3 Aluminum
        5. 10.2.2.5 Turnon Characteristics For Output Voltages Programmed to 2 V or Below
        6. 10.2.2.6 Output Noise
      3. 10.2.3 Application Curves
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
    3. 12.3 RFI and/or EMI Susceptibility
    4. 12.4 Power Dissipation/Heatsinking
      1. 12.4.1 Heatsinking TO-220 Package
      2. 12.4.2 Heatsinking TO-263 Package
  13. 13Device and Documentation Support
    1. 13.1 Related Links
    2. 13.2 Trademarks
    3. 13.3 Electrostatic Discharge Caution
    4. 13.4 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

Package Options

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

11 Power Supply Recommendations

The LP3852 and LP3855 devices are designed to operate from an input voltage supply range between 2.5 V and 7 V. The input voltage range provides adequate headroom in order for the device to have a regulated output. This input supply must be well regulated. An input capacitor of at least 10 μF is required.