SNVS459A October   2006  – September 2017 LM2853

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
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1  Input Capacitor (CIN)
      2. 8.1.2  Soft-Start Capacitor (CSS)
      3. 8.1.3  Soft-Start Capacitor (CSS) and Fault Conditions
      4. 8.1.4  Compensation
      5. 8.1.5  Output Filter Values
      6. 8.1.6  Choosing an Inductance Value
      7. 8.1.7  Output Filter Inductors
      8. 8.1.8  Output Filter Capacitors
      9. 8.1.9  Split-Rail Operation
      10. 8.1.10 Switch Node Protection
    2. 8.2 Typical Application
  9. 9 Layout
    1. 9.1 Layout Guidelines
    2. 9.2 Example Circuit Schematic and Bill of Materials
  10. 10Device and Documentation Support
    1. 10.1 Receiving Notification of Documentation Updates
    2. 10.2 Community Resources
    3. 10.3 Trademarks
    4. 10.4 Electrostatic Discharge Caution
    5. 10.5 Glossary
  11. 11Mechanical, Packaging, and Orderable Information

Package Options

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

7 Detailed Description

7.1 Overview

The LM2853 is a DC-DC buck regulator belonging to Texas Instrument’s synchronous family. Integration of the PWM controller, power switches and compensation network greatly reduces the component count required to implement a switching power supply. A typical application requires only four components: an input capacitor, a soft-start capacitor, an output filter capacitor and an output filter inductor.

7.2 Functional Block Diagram

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