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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