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

4 Pin Configuration and Functions

PTH08T210W PTH08T210W (TOP VIEW) Figure 4-1 PTH08T210W (TOP VIEW)
Table 4-1 Pin Functions
PIN DESCRIPTION
NAME NO.
VI 2, 6 The positive input voltage power node to the module, which is referenced to common GND.
VO 5, 9 The regulated positive power output with respect to the GND.
GND 3, 4
7, 8		 This is the common ground connection for the VI and VO power connections. It is also the 0 Vdc reference for the control inputs.
Inhibit(1)/
UVLO adjust		 1 The Inhibit pin is an open-collector/drain, negative logic input that is referenced to GND. Applying a low level ground signal to this input disables the module’s output and turns off the output voltage. When the Inhibit control is active, the input current drawn by the regulator is significantly reduced. If the Inhibit pin is left open-circuit, the module produces an output whenever a valid input source is applied. This input is not compatible with TTL logic devices and should not be tied to VI or any other voltage.
This pin is also used for input undervoltage lockout (UVLO) programming. Connecting a resistor from this pin to GND (pin 3) allows the ON threshold of the UVLO to be adjusted higher than the default value. For more information, see the Application Information section.
Vo Adjust 12 A 0.1 W 1% resistor must be directly connected between this pin and pin 8 (GND) to set the output voltage to a value higher than 0.7 V. The temperature stability of the resistor should be 100 ppm/°C (or better). The setpoint range for the output voltage is from 0.7 V to 3.6 V. If left open circuit, the output voltage will default to its lowest value. For further information, on output voltage adjustment see the related application note. The specification table gives the preferred resistor values for a number of standard output voltages.
+ Sense 10 The sense input allows the regulation circuit to compensate for voltage drop between the module and the load. For optimal voltage accuracy, +Sense must be connected to VO , very close to the load.
– Sense 11 The sense input allows the regulation circuit to compensate for voltage drop between the module and the load. For optimal voltage accuracy, –Sense must be connected to GND (pin 8), very close to the load.
Track 14 This is an analog control input that enables the output voltage to follow an external voltage. This pin becomes active typically 20 ms after the input voltage has been applied, and allows direct control of the output voltage from 0 V up to the nominal set-point voltage. Within this range the module's output voltage follows the voltage at the Track pin on a volt-for-volt basis. When the control voltage is raised above this range, the module regulates at its set-point voltage. The feature allows the output voltage to rise simultaneously with other modules powered from the same input bus. If unused, this input should be connected to VI.
NOTE: Due to the undervoltage lockout feature, the output of the module cannot follow its own input voltage during power up. For more information, see the related application note.
TurboTrans™ 13 This input pin adjusts the transient response of the regulator. To activate the TurboTrans™ technology feature, a 1%, 50 mW resistor must be connected between this pin and pin 10 (+Sense) very close to the module. For a given value of output capacitance, a reduction in peak output voltage deviation is achieved by using this feature. If unused, this pin must be left open-circuit. External capacitance must never be connected to this pin. The resistance requirement can be selected from the TurboTrans™ resistor table in the Application Information section.
(1) Denotes negative logic: Open = Normal operation, Ground = Function active