Description
Hewlett Packard’s AT-33225 is a low cost, NPN power silicon bipolar junction transistor housed in a miniature MSOP-3 surface mount plastic package. This device is designed for use as an output device for AMPS and ETACS mobile phones. The AT-33225 features over 1 watt CW␣ output power when operated at 4.8 volts. Excellent gain and superior efficiency make the AT-33225 ideal for use in battery powered systems.

Features
• 4.8 Volt Operation
• +31.0 dBm Pout @ 900 MHz, Typ.
• 70% Collector Efficiency @␣ 900 MHz, Typ.
• 9 dB Power Gain @ 900 MHz, Typ.
• -29 dBc IMD3 @ Pout of 24␣ dBm per tone, 900 MHz, Typ.
• Internal Input Pre-Matching Facilitates Cascading
• 50% Smaller than SOT-223 Package

Applications
• Output Power Device for AMPS and ETACS Handsets
• 900 MHz ISM