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July, 3 2002

START540

NPN Silicon RF Transistor

SOT343 (SC70)

ORDER CODE

START540TR

BRANDING

540

APPLICATIONS

• LNA FOR GSM/DCS, DECT, PDC, PCS,

PCN, CDMA, W-CDMA

• GENERAL PURPOSE 500MHz-5GHz

• LOW NOISE FIGURE: NFmin = 0.9dB

@ 1.8GHz, 5mA, 2V

• HIGH OUTPUT IP3 = 24dBm

@ 1.8GHz, 20mA, 2V

• GOOD RUGGEDNESS BVceo = 4.5V

• TRANSITION FREQUENCY 45GHz

• ULTRA MINIATURE SOT343 PACKAGE

DESCRIPTION

The START540 is a member of the START family

that provide the market with the state of the art of RF

silicon

process. Manufacturated

in

the

third

generation of ST proprietary bipolar process, it

offers the highest linearity with excellent Noise

Figure for 4.5V breakdown voltage(BVceo).

It reaches performance level only achieved with

GaAs products before.

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Value

Unit

Collector emitter voltage

4.5

V

Collector base voltage

15

V

Emitter base voltage

1.5

V

Collector current

40

mA

Base current

4

mA

180

mW

Storage temperature

-65 to 150

Max. operating junction temperature

150

Thermal Resistance Junction soldering point

270

ABSOLUTE MAXIMUM RATINGS