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RFPA5208TR13

Three-stage 2.4 GHz Wi-Fi power amplifier with integrated regulator and power detector for 802.11b/g/n/ac applications.

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Manufacturer Part：

RFPA5208TR13

Package：

Laminate MCM 10-pin (4.0 x 4.0 x 1.05 mm)

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Description

The RFPA5208TR13 by Qorvo (formerly RF Micro Devices) is a three-stage 2.4 GHz Wi-Fi Power Amplifier designed for 802.11b/g/n/ac applications. It integrates a power amplifier, voltage regulator, and power detector coupler in a single 4.0 × 4.0 × 1.05 mm, 10-pin laminate MCM package with both input and output internally matched to 50 Ω, eliminating external matching components and reducing BOM count. The device delivers +28 dBm linear output power for 802.11n 20 MHz MCS7 at -30 dB dynamic EVM and +26 dBm for 802.11ac 20 MHz MCS8 at -35 dB dynamic EVM, with 40 dB typical gain and -1.5 dB gain flatness across the 2.4–2.5 GHz band. It operates from a single 5 V supply (4.75–5.25 V) with 530 mA (802.11n) and 590 mA (802.11ac) typical current consumption. The PA_EN pin (active high at 2.9–3.1 V) enables TDD on/off control, while the integrated PDET output enables real-time transmit power monitoring without an external coupler.

The RFPA5208TR13 is targeted at Wi-Fi routers, wireless access points, range extenders, gateways, and customer premises equipment. It is supplied in a 13-inch tape-and-reel format for automated SMT assembly (MSL-3). Compliance: RoHS, lead-free, and halogen-free. ECCN: 5A991.G. Note: This product has been discontinued — End of Life was announced on September 8, 2023 (PCN 23-0127), with Last Time Buy date of March 11, 2024. New designs should evaluate alternative models such as the Qorvo SE5004L or Skyworks SKY65162-70LF.

The RFPA5208TR13 is a three-stage power amplifier designed by Qorvo (formerly RF Micro Devices) for Wi-Fi 802.11b/g/n/ac systems operating in the 2.4 GHz to 2.5 GHz frequency range. It integrates a 2 GHz power amplifier, voltage regulator, and a power detector coupler for improved accuracy into a single compact module. The integrated input and output 50-ohm match and integrated regulator minimize layout area, reduce the bill of materials, and lower manufacturability cost. Performance is optimized for a balance of efficiency and linear output power to maximize wireless connection range. The device delivers +28 dBm output power for 802.11n 20 MHz MCS7 at -30 dB dynamic EVM, and +26 dBm for 802.11ac 20 MHz MCS8 at -35 dB dynamic EVM, with 40 dB typical gain. It operates from a single 5 V supply with 530 mA (802.11n) or 590 mA (802.11ac) current consumption. The RFPA5208TR13 is housed in a 4.0 x 4.0 x 1.05 mm, 10-pin laminate MCM package and is qualified to MSL-3. Note: This product has been discontinued (End of Life announced September 8, 2023, PCN 23-0127; Last Time Buy March 11, 2024).

The RFPA5208TR13 operates as a three-stage linear power amplifier with the following signal flow:

1. Input Matching Network: The RF input signal (2.4-2.5 GHz) is fed through an integrated 50-ohm matched input, requiring no external matching components. The input return loss is typically 10 dB.

2. Three-Stage Amplification: The signal passes through three cascaded gain stages that together provide 40 dB of typical gain with a gain flatness of -1.5 dB across the 2.4-2.5 GHz band. Each stage is biased internally by the integrated voltage regulator, ensuring stable performance over supply voltage and temperature variations.

3. Integrated Regulator: An on-chip voltage regulator converts the 5 V supply into controlled bias voltages for each amplifier stage. The regulator is enabled via the PA_EN pin (active high, 2.9-3.1 V). When PA_EN is low (0-0.2 V), the amplifier is disabled with a quiescent current of only 225 mA dropping further in shutdown.

4. Output Matching Network: The amplified signal exits through an integrated 50-ohm matched output, again requiring no external matching. The output return loss is typically 8 dB.

5. Power Detector (PDET): An integrated directional coupler and detector provide a DC voltage output proportional to the transmitted power level, enabling real-time transmit power monitoring and closed-loop power control without an external coupler.

6. Enable/Disable Control: The PA_EN pin controls the amplifier on/off state. Setting PA_EN high enables the PA and regulator; setting it low disables the amplifier for power saving in TDD (Time Division Duplex) Wi-Fi operation.

Pin Name Type Description
1 RFIN I (RF) RF input, matched to 50 ohm
2 GND G Ground
3 VCC P Main DC supply voltage, 5 V nominal
4 GND G Ground
5 PDET O (DC) Power detector output, proportional to RF output power
6 RFOUT O (RF) RF output, matched to 50 ohm
7 GND G Ground
8 GND G Ground
9 NC — No connect
10 PA_EN I (DC) Power amplifier enable (active high, 2.9-3.1 V = ON, 0-0.2 V = OFF)
Application Description
Wi-Fi Routers & Gateways 2.4 GHz 802.11b/g/n/ac power amplification for consumer and enterprise routers, extending wireless range with high linear output power
Wireless Access Points External PA stage for access point radios requiring +28 dBm linear power with integrated power detection for automatic transmit power control
Wi-Fi Range Extenders Compact PA solution for repeater/range extender designs where minimal BOM and small footprint are critical
Customer Premises Equipment (CPE) Dual-band Wi-Fi CPE designs with the RFPA5208 serving as the 2.4 GHz PA, paired with a 5 GHz PA for dual-band operation
Microcells & Small Cells Low-power cellular/Wi-Fi microcell deployments needing efficient linear amplification in the 2.4 GHz ISM band
Model Manufacturer Compatibility Key Difference
RFPA5542TR13 Qorvo Series Sibling 5 GHz version for 802.11ac/ax 5 GHz band, same package family
SKY65162-70LF Skyworks Competitive Alternative 400-2700 MHz wideband PA, different frequency range, QFN-16 package
SE5004L SiGe (Microchip) Competitive Alternative 2.4 GHz Wi-Fi PA, +28 dBm, similar performance, different pinout
RFPA5200SR Qorvo Series Sibling Lower-power variant, same frequency, different package option
SZA5044Z Qorvo Competitive Alternative 4.9-5.9 GHz 5 GHz PA, for dual-band designs needing 5 GHz PA
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Service & Packaging

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Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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