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2stx2220


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                                                                               2STX2220
                                                                  High Gain Low Voltage
                                                                  PNP Power Transistor

General features
    Very low Collector to Emitter saturation voltage
    D.C. Current gain, hFE >100
    1.5 A continuous collector current
    In compliance with the 2002/93/EC European
    Directive

Description                                                            TO-92
The device in a PNP transistor manufactured
using new "PB-HDC" (Power Bipolar High Density
Current) technology. The resulting transistor
shows exceptional high gain performances
coupled with very low saturation voltage.
                                                          Internal schematic diagram
Applications
    Power management in portable equipment
    Switching regulator in battery charger
    applications




Order codes
   Part Number         Marking                     Package                     Packing

    2STX2220            X2220                          TO-92                    Bulk




September 2006                                     Rev 2                                      1/11
                                                                                         www.st.com   11
                                                                                                                2STX2220


Contents
1      Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2      Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
       2.1      Electrical characteristics (curves) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
       2.2      Test circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3      Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4      Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10




2/11
2STX2220                                                                  Electrical ratings


1          Electrical ratings

           Table 1.       Absolute maximum rating
            Symbol                              Parameter               Value         Unit

             VCBO       Collector-base voltage (IE = 0)                  -20           V
             VCEO       Collector-emitter voltage (IB = 0)               -20           V
             VEBO       Emitter-base voltage (IC = 0)                    -5            V

               IC       Collector current                                -1.5          A
              ICM       Collector peak current (tP < 5ms)                -3            A
               IB       Base current                                     -0.1          A
              IBM       Base peak current (tP < 5ms)                     -0.2          A

              Ptot      Total dissipation at T amb = 25



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