Low Noise Enhancement Mode Pseudomorphic HEMT
in a Surface Mount Plastic Package
Avago Technologies’ ATF-55143 is a high dynamic range,
very low noise, single supply E-PHEMT housed in a
4-lead SC-70 (SOT-343) surface mount plastic package.
The combination of high gain, high linearity and low
noise makes the ATF-55143 ideal for cellular/PCS hand-
sets, wireless data systems (WLL/RLL, WLAN and MMDS)
and other systems in the 450 MHz to 6 GHz frequency
Surface Mount Package SOT-343
Pin Connections and Package Marking
Top View. Package marking provides orientation and identification
“5F” = Device Code
“x” = Date code character identifies month of manufacture.
High linearity performance
Single Supply Enhancement Mode Technology
Very low noise figure
Excellent uniformity in product specifications
400 micron gate width
Low cost surface mount small plastic package SOT-
343 (4 lead SC-70)
Tape-and-Reel packaging option available
Lead Free Option Available
2 GHz; 2.7V, 10 mA (Typ.)
24.2 dBm output 3rd order intercept
14.4 dBm output power at 1 dB gain compression
0.6 dB noise figure
17.7 dB associated gain
Lead-free option available
Low noise amplifier for cellular/PCS handsets
LNA for WLAN, WLL/RLL and MMDS applications
General purpose discrete E-PHEMT for other ultra low
1. Enhancement mode technology requires positive Vgs, thereby
eliminating the need for the negative gate voltage associated with
conventional depletion mode devices.
Attention: Observe precautions for
handling electrostatic sensitive devices.
ESD Machine Model (Class A)
ESD Human Body Model (Class 0)
Refer to Avago Application Note A004R:
Electrostatic Discharge Damage and Control.