SLVS638D January   2006  – June 2022

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 — TL2575
    6. 6.6 Electrical Characteristics — TL2575HV
    7. 6.7 Typical Characteristics
  7. 7 Parameter Measurement Information
    1. 7.1 Test Circuits
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Feedback Connection
      2. 8.3.2 ON/OFF Input
    4. 8.4 Device Functional Modes
      1. 8.4.1 Standby Mode
  9. 9 Application and Implementation
    1. 9.1 Typical Application
      1. 9.1.1 Design Requirements
      2. 9.1.2 Detailed Design Procedure
        1. 9.1.2.1 Input Capacitor (CIN)
        2. 9.1.2.2 Output Capacitor (COUT)
        3. 9.1.2.3 Catch Diode
        4. 9.1.2.4 Inductor
        5. 9.1.2.5 Output Voltage Ripple and Transients
        6. 9.1.2.6 Grounding
        7. 9.1.2.7 Reverse Current Considerations
        8. 9.1.2.8 Buck Regulator Design Procedure
        9. 9.1.2.9 Inductor Selection Guide
      3. 9.1.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Receiving Notification of Documentation Updates
    2. 12.2 Support Resources
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information
    1. 13.1 Package Option Addendum

Package Options

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

1 Features

  • Fixed 3.3-V, 5-V, 12-V, and 15-V options with ±5% regulation (maximum) over line, load, and temperature conditions
  • Adjustable option with a range of 1.23 V to 37 V (57 V for HV version) and ±4% regulation (maximum) over line, load, and temperature conditions
  • Specified 1-A output current
  • Wide input voltage range
    • 4.75 V to 40 V (60 V for HV version)
  • Requires only four external components (fixed versions) and uses readily available standard inductors
  • 52-kHz (typical) fixed-frequency internal oscillator
  • TTL shutdown capability with 50-μA (typical) standby current
  • High efficiency
    • As high as 88% (typical)
  • Thermal shutdown and current-limit protection with cycle-by-cycle current limiting