PD57045-E

Overview

The PD57045-E is an N-channel enhancement-mode lateral MOSFET from the LdmoST plastic family, designed for high gain and broad band commercial and industrial applications. It operates at 28 V in common source mode at frequencies up to 1 GHz. The device delivers a power output (POUT) of 45 W with 13 dB gain at 945 MHz under 28 V conditions. It features excellent thermal stability and linearity, making it suitable for base station applications. The component is housed in the PowerSO-10RF package, which is JEDEC approved and optimized for RF performance.

Feature Summary

• Common source configuration providing high gain and broadband performance
• Excellent thermal stability and reliability using latest LDMOS technology
• New RF plastic PowerSO-10RF package offering ease of assembly

Applications

• Base station applications requiring high linearity
• Broadband commercial RF applications
• Industrial RF applications

Procurement Notes

Verify the specific ordering suffix and packaging type before procurement. The standard PD57045-E typically comes in tube packaging, while tape and reel variants exist with different suffixes such as TR. Confirm RoHS compliance status and current production lifecycle stage, as availability may vary by region and distributor. Ensure the selected variant matches the required assembly method for the target PCB design.

Selection Notes

Select this component when designing circuits requiring 45 W output power at 945 MHz with 13 dB gain. Ensure the design supports 28 V operation in common source mode. Consider the PowerSO-10RF package constraints and refer to application note AN1294 for mounting recommendations. Verify that the thermal management solution aligns with the device's excellent thermal stability characteristics for continuous operation.

Part Context

The PD57045-E belongs to STMicroelectronics' LdmoST plastic family of lateral MOSFETs. It represents an evolution in RF power transistors by integrating high-performance LDMOS technology into a surface-mount plastic package. This series targets the demand for reliable, high-linearity amplifiers in wireless infrastructure, specifically addressing the need for robust components in base station environments operating up to 1 GHz.

Replacement Considerations

The SD57045 is a related part within the same LdmoST family, offering similar electrical specifications including 45 W output and 13 dB gain. However, package differences must be evaluated during substitution. Verify pinout compatibility and thermal requirements before replacing PD57045-E with alternative packages or variants.