SLTS262K October   2005  – May 2026 PTH08T210W

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 Recommended Operating Conditions
    3. 5.3 Electrical Characteristics
    4. 5.4 Typical Characteristics
    5. 5.5 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview: TurboTrans™ Technology
    2. 6.2 Feature Description
      1. 6.2.1 Soft-Start Power Up
      2. 6.2.2 Remote Sense
  8. 7 Application and Implementation
    1. 7.1 Typical Application
      1. 7.1.1 Detailed Design Procedure
        1. 7.1.1.1 Capacitor Recommendations
          1. 7.1.1.1.1 Input Capacitor (Required)
          2. 7.1.1.1.2 TurboTrans Output Capacitor
          3. 7.1.1.1.3 Non-TurboTrans Output Capacitor
          4. 7.1.1.1.4 Ceramic Capacitors
          5. 7.1.1.1.5 Tantalum, Polymer-Tantalum Capacitors
          6. 7.1.1.1.6 Capacitor Table
          7. 7.1.1.1.7 Designing for Fast Load Transients
        2. 7.1.1.2 TurboTrans™ Selection
          1. 7.1.1.2.1 RTT Resistor Selection
          2. 7.1.1.2.2 RTT Resistor Selection
          3. 7.1.1.2.3 RTT Resistor Selection
        3. 7.1.1.3 Adjusting the Output Voltage
        4. 7.1.1.4 Undervoltage Lockout (UVLO)
        5. 7.1.1.5 UVLO Adjustment
        6. 7.1.1.6 Output On/Off Inhibit
        7. 7.1.1.7 Overcurrent Protection
        8. 7.1.1.8 Overtemperature Protection (OTP)
        9. 7.1.1.9 Auto-Track™ Function
          1. 7.1.1.9.1 How Auto-Track™ Works
          2. 7.1.1.9.2 Typical Application
          3. 7.1.1.9.3 Notes on Use of Auto-Track™
  9. 8 Device and Documentation Support
    1. 8.1 Receiving Notification of Documentation Updates
    2. 8.2 Support Resources
    3. 8.3 Trademarks
    4. 8.4 Electrostatic Discharge Caution
    5. 8.5 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information
    1. 10.1 Tape and Reel and Tray Drawings
7.1.1.9.1 How Auto-Track™ Works

Auto-Track works by forcing the module output voltage to follow a voltage presented at the Track control pin(1). This control range is limited to between 0 V and the module set-point voltage. Once the track-pin voltage is raised above the set-point voltage, the module output remains at its set-point(2). As an example, if the Track pin of a 2.5-V regulator is at 1 V, the regulated output is 1 V. If the voltage at the Track pin rises to 3 V, the regulated output does not go higher than 2.5 V.

When under Auto-Track control, the regulated output from the module follows the voltage at its Track pin on a volt-for-volt basis. By connecting the Track pin of a number of these modules together, the output voltages follow a common signal during power up and power down. The control signal can be an externally generated master ramp waveform, or the output voltage from another power supply circuit(3). For convenience, the Track input incorporates an internal RC-charge circuit. This operates off the module input voltage to produce a suitable rising waveform at power up.