5 GHz, 23dBm Power Amplifier with Power Detector

The SE5003L is a 5GHz power amplifier offering high linear power for wireless LAN applications. The SE5003L incorporates a power detector for closed loop monitoring and control of the output power.

The SE5003L offers high integration for a simplified design, providing quicker time to market and higher application board production yield. The device integrates the input match, the inter-stage match, the output match, the power detector with 15dB of dynamic range and a 3.8GHz notch filter. Only 6 external decoupling capacitors are required to complete the design.

For wireless LAN applications, the device meets the requirements of IEEE802.11a & 802.11n, and delivers approximately 23dBm of linear output power at 5V.

The SE5003L integrates the reference voltage generator. A 2.85V reference voltage on VREF is all that is required to enable or disable the power amplifier.


    • High output power amplifier: 23dBm at 5V
    • External Analog Reference Voltage (VREF) for maximum flexibility
    • Buffered, temperature compensated power detector
    • 3% EVM, @23dBm, 64 QAM, 54 Mbps
    • 32 dB Gain
    • Lead Free, RoHS compliant and halogen free package, MSL3
    • 20 pin 4 mm x 4 mm x 0.9 mm QFN

Images & Diagrams


    • Frequency Range (GHz)
    • 5.15-5.85
    • Test Frequency (GHz)
    • 5.4
    • Gain Typ. (dB)
    • 32
    • Power Added Efficiency (%)
    • OIP3 (dBm)
    • P1 dB (dBm)
    • 29
    • VCC (V)
    • 5
    • Quiescent Current Typ. (mA)
    • 150
    • Noise Figure Typ. (dB)
    • Package
    • QFN, 20-pin
    • Package (mm)
    • 4 x 4 x 0.9