NXP Semiconductors OM7620/BGA6289B

Overview

BGA6289 from NXP Semiconductors is a silicon Monolithic Microwave Integrated Circuit (MMIC) wideband medium power amplifier in SOT89 package, featuring resistive feedback Darlington configuration, 13 dB typical insertion gain at 1.95 GHz, 3.7 dB noise figure at 1.95 GHz, and 15 dBm output power at 1 dB compression - deployed as RF/IF buffer or driver in cellular base stations and wireless infrastructure.

For engineers reviewing the BGA6289 datasheet, BGA6289 pinout, BGA6289 application, or BGA6289 equivalent, this page delivers verified electrical parameters, thermal resistance (100 K/W), stability factor (K ≥ 1.2 up to 2.6 GHz), internal 50 Ω matching, and biasing requirements for rapid RF design integration.

Technical Context

The BGA6289 employs a resistive feedback Darlington architecture to achieve broadband operation from 200 MHz to 2.6 GHz with high gain accuracy and unconditional stability (K > 1.2 across full band). Its internal 50 Ω input/output matching eliminates external matching networks in most applications.

DC bias is applied via pin 1 (RF_OUT/BIAS) through a 47 Ω resistor at 8 V supply, drawing 88 mA typical current; thermal management relies on the exposed collector pad in the SOT89 package, with junction-to-solder-point thermal resistance of 100 K/W.

Key Specifications

Pinout & Package

The BGA6289 is housed in a plastic surface-mounted SOT89 (SC-62) package with an exposed collector pad for low thermal resistance. The 3-pin outline features optimized leadframe geometry for RF performance and thermal conduction.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar medium-power RF amplifier applications.

Compared with BGA6289, QPL9057 offers superior noise and gain but increases design complexity with external matching, while RFM8206 adds bias intelligence at the cost of higher quiescent power - BGA6289 remains optimal for cost-sensitive, space-constrained RF buffers where internal matching and proven thermal reliability are decisive.

Availability

BGA6289 is available at Aetrix Electronics and suitable for cellular infrastructure, PCS radio modules, CDPD modems, and SONET optical link drivers requiring stable component supply across long-lifecycle deployments.

Supply support for BGA6289 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and communication markets.

The BGA6x89 product line was designed specifically for broadband RF infrastructure applications - delivering internally matched, thermally robust MMIC gain blocks that simplify RF front-end development in cellular, PCS, and optical networking systems.

FAQ

What is the recommended DC bias configuration for BGA6289?

The BGA6289 requires a single 8 V supply applied through a 47 Ω bias resistor to pin 1 (RF_OUT/BIAS), drawing 88 mA typical current. A 1 µF decoupling capacitor (C5) is recommended at the supply node, and the ground pin (pin 2) must connect to a low-inductance PCB ground plane using multiple vias for thermal and RF stability - this configuration is validated in the official NXP application circuit (Figure 10).

Does BGA6289 require external impedance matching networks?

No, the BGA6289 is internally matched to 50 Ω at both input (pin 3) and output (pin 1), eliminating the need for external matching components in standard RF applications. This is confirmed in Section 8 of the datasheet, which states "the device is internally matched to 50 Ω, and therefore does not require any external matching" - though optional fine-tuning with L1/C3 is supported for edge-case optimization.

What is the maximum allowable junction temperature for BGA6289?

The absolute maximum junction temperature (Tj) for BGA6289 is 150 °C, as specified in Table 5 (Limiting Values). Operation above this threshold risks permanent degradation. To maintain safe operation, the solder-point temperature (Tsp) must be held ≤70 °C, leveraging the 100 K/W junction-to-solder-point thermal resistance - achieved via adequate PCB copper area and via count under the exposed collector pad.

Can BGA6289 be used in oscillators or as a final PA stage?

Yes, the BGA6289 datasheet explicitly lists "oscillator amplifier" and "final PA" among its intended applications (Section 1.3). Its 15 dBm P1dB at 1.95 GHz, unconditional stability (K ≥ 1.2), and high OIP3 (31 dBm) support use in oscillator sustaining loops and driver stages preceding discrete final PAs - however, it is not rated for direct antenna interface due to power and ruggedness limitations.

Is BGA6289 compatible with lead-free reflow processes?

Yes, the BGA6289 SOT89 package is qualified for lead-free reflow soldering per JEDEC J-STD-020. The plastic body and leadframe meet RoHS requirements, and the thermal profile must respect the 260 °C peak temperature limit for 10 seconds - verified in NXP's package reliability documentation for SC-62 devices, ensuring compatibility with standard Class 3 electronics assembly lines.