September 2007

Rev 3

1/11

11

Table 1.

Device summary

Order code

Marking

Package

Packaging

2STF2220

2220

SOT-89

Tape & reel

2STF2220

High gain Low Voltage PNP power transistor

Features

■

Very low Collector to Emitter saturation voltage

■

■

1.5 A continuous collector current

Applications

■

Power management in portable equipment

■

Switching regulator in battery charger

applications

Description

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.

Figure 1.

Internal schematic diagram

SOT-89

www.st.com