SLVSE72A September 2017  – September 2017 TPS565208


  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Pin Configuration and Functions
  6. Specifications
    1. 6.1Absolute Maximum Ratings
    2. 6.2ESD Ratings
    3. 6.3Recommended Operating Conditions
    4. 6.4Thermal Information
    5. 6.5Electrical Characteristics
    6. 6.6Typical Characteristics
  7. Detailed Description
    1. 7.1Overview
    2. 7.2Functional Block Diagram
    3. 7.3Feature Description
      1. 7.3.1Adaptive On-Time Control and PWM Operation
      2. 7.3.2Soft Start and Pre-Biased Soft Start
      3. 7.3.3Current Protection
      4. 7.3.4Undervoltage Lockout (UVLO) Protection
      5. 7.3.5Thermal Shutdown
    4. 7.4Device Functional Modes
      1. 7.4.1Normal Operation
      2. 7.4.2Standby Operation
  8. Application and Implementation
    1. 8.1Application Information
    2. 8.2Typical Application
      1. 8.2.1Design Requirements
      2. 8.2.2Detailed Design Procedure
        1. Design With WEBENCH® Tools
        2. Voltage Resistors Selection
        3. Filter Selection
        4. Capacitor Selection
        5. Capacitor Selection
      3. 8.2.3Application Curves
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1Layout Guidelines
    2. 10.2Layout Example
  11. 11Device and Documentation Support
    1. 11.1Development Support
      1. 11.1.1Custom Design With WEBENCH® Tools
    2. 11.2Receiving Notification of Documentation Updates
    3. 11.3Community Resources
    4. 11.4Trademarks
    5. 11.5Electrostatic Discharge Caution
    6. 11.6Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Orderable Information


  • 5-A Maximum Output Current
  • Integrated 31-mΩ and 16-mΩ FETs
  • D-CAP2™ Mode Control with Fast Transient Response
  • Input Voltage Range: 4.5 V to 17 V
  • Output Voltage Range: 0.76 V to 7 V
  • Continuous Current Mode
  • 500-kHz Switching Frequency
  • Low Shutdown Current of Less than 1 µA
  • 1% Feedback Voltage Accuracy
  • Startup from Pre-biased Output Voltage
  • Cycle-by-Cycle Current Limit
  • Hiccup-mode Overcurrent Protection
  • Non-Latch UVP and TSD Protections
  • Fixed Soft Start: 1.0 ms
  • Create a Custom Design Using the TPS565208 With the WEBENCH® Power Designer


  • Digital TV Power Supply
  • High Definition Blu-ray™ Disc Players
  • Networking Home Terminal
  • Digital Set Top Box (STB)
  • Surveillance


The TPS565208 is a simple, easy-to-use, 5-A synchronous step-down converter in SOT-23 package.

The device is optimized to operate with minimum external component count and also optimized to achieve low standby current.

This switch mode power supply (SMPS) device employs D-CAP2™ mode control, which provides fast transient response and requires no external compensation components. D-CAP2™ also allows the use of low-equivalent series resistance (ESR) specialty polymer capacitors and ceramic capacitors.

The TPS565208 is available in a 6-pin 1.6-mm × 2.9-mm SOT (DDC) package, and operates over a –40°C to 125°C junction temperature range.

Device Information(1)

TPS565208DDC (6)1.60 mm × 2.90 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.



Simplified Schematic

TPS565208 Simplified_Schematic_001_SLVSE72.gif

TPS565208 Load Regulation

TPS565208 Load_Transient_Response_1p25A_to_3p75A_24_SLVSE71.gif