RFPA5542

The RFPA5542 is a three-stage power amplifier (PA) designed for 

802.11a/n/ac applications. The integrated input and output 50Ω match 

greatly reduces the layout area, bill of materials and manufacturability 

cost in the customer application. The PA is optimized to minimize the 

required external components to maintain linear performance. The 

RFPA5542 is manufactured on an advanced InGaP heterojunction bipolar 

transistor (HBT) process and is capable of achieving linear powers up to 

23dBm with an EVM <1.8% while maintaining excellent power added 

efficiency. The device is provided in a 4.0mm x 4.0mm x 0.90mm 

package that meets or exceeds the power requirements of 

IEEE802.11a/n/ac WiFi RF systems.

Features

■ POUT = 23dBm, 5V, 11ac, 80MHz MCS9 at 1.8% EVM

■ POUT = 25dBm, 5V, 11n, 20/40MHz MCS7 at 3% EVM

■ Typical Gain = 33dB

■ High PAE

■ Required external components minimized 

■ Integrated Regulator

■ Input and Output Matched to 50Ω

■ Integrated Power Detector

Applications

■ Customer Premise Equipment (CPE)

■ Wireless Access Points, Gateways

■ Routers

■ Set-Top Box Applications

■ Picocell/Femtocell