SLVSB82B May   2012  – April 2021 TPS54525

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  PWM Operation
      2. 7.3.2  PWM Frequency and Adaptive On-Time Control
      3. 7.3.3  Soft Start and Pre-Biased Soft Start
      4. 7.3.4  Power Good
      5. 7.3.5  VREG5
      6. 7.3.6  Output Discharge Control
      7. 7.3.7  Current Protection
      8. 7.3.8  Over/Under Voltage Protection
      9. 7.3.9  UVLO Protection
      10. 7.3.10 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Forced CCM Mode
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Step By Step Design Procedure
        2. 8.2.2.2 Output Voltage Resistors Selection
        3. 8.2.2.3 Output Filter Selection
        4. 8.2.2.4 Input Capacitor Selection
        5. 8.2.2.5 Bootstrap Capacitor Selection
        6. 8.2.2.6 VREG5 Capacitor Selection
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Guidelines
      1. 10.2.1 Thermal Considerations
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Support Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary

Package Options

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

6.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted) (1)
MINMAXUNIT
Input voltage rangeVIN1, VIN2 EN–0.320V
VBST–0.326V
VBST (10 ns transient)–0.328V
VBST (vs SW1, SW2)–0.36.5V
VFB, VO, SS, PG–0.36.5V
SW1, SW2–220V
SW1, SW2 (10 ns transient)–322V
Output voltage rangeVREG5–0.36.5V
PGND1, PGND2–0.30.3V
Voltage from GND to PowerPAD™, Vdiff–0.20.2V
Operating junction temperature, TJ–40150°C
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.