High-Power 802.11ac WLAN Power Amplifier with Integrated Power Detector

Skyworks SKY85405-11 is a 5 GHz Microwave Monolithic Integrated Circuit (MMIC) power amplifier (PA) with superior output power, linearity, and efficiency. These features make the SKY85405-11 ideal for wireless local area network (WLAN) IEEE 802.11ac applications.

The SKY85405-11 features an internal band-gap regulator that eliminates the need for an external reference supply. The PA is activated with a standard 1.8 V to 5.0 V low current CMOS logic signal.

The device is fabricated using Indium Gallium Phosphide (InGaP) Heterojunction Bipolar Transistor (HBT) technology. The device is internally matched and mounted in a 20-pin, 4 x 4 mm Quad Flat No-Lead (QFN) surface-mount technology (SMT) package, which allows for a highly manufacturable, low-cost solution.

Related Products

SKY85405-11 SKY85405-11 SKY85408-11 SKY85408-11 SKY85728-11 SKY85743-11 SKY65404-31 SKY65981-11 SKY13370-374LF SKY13408-465LF SKY85605-11 SKY85614-11 SKY85736-11 SKY85738-11


  • High linear output power for IEEE 802.11ac, MCS9, 5.0 V
  • High transmit gain
  • Power shutdown mode
  • Superior gain flatness
  • Fully matched at RF input/output ports
  • Load insensitive power detector
  • Small footprint QFN (20-pin, 4 x 4 mm) SMT package (MSL3, 260 °C per JEDEC J-STD-020)
Product Summary SKY85405-11: High-Power 802.11ac WLAN Power Amplifier with Integrated Power Detector SKY85405_11_PS_203617A.pdf (165 KB)
Application Notes SKY85405-11: Ruggedness Improvements in 5 V Applications SKY85405_11_203840A_AN.pdf (558 KB)
Application Notes SKY85405-11: Performance with and without a Thermal Pad SKY85405_11_203862A_AN.pdf (1028 KB)
ProductName : SKY85405-11
Frequency Range (GHz) : 5.15-5.93
Test Frequency (GHz) : TBD
Gain Typ. (dB) : TBD
OIP3 (dBm) :
P1 dB (dBm) : TBD
Power Added Efficiency (%) :
Quiescent Current Typ. (mA) : TBD
Noise Figure Typ. (dB) :
Package : QFN, 20-pin
Package (mm) : 4 x 4
Product Information: New
For world-class customer service and assistance finding the Skyworks product to fit your specific design needs, please submit your request, or contact us by phone.
USA: 781-376-3000
Asia: +886 2 2322 0200
Europe: +33(0) 1 43548540