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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