STS4DPF20L

Overview

The STS4DPF20L is a dual P-channel power MOSFET manufactured by STMicroelectronics using the STripFET II technology. It features a typical on-resistance (RDS(on)) of 0.045 Ω at a drain-source voltage of 20 V and supports a continuous drain current of 5 A. The device is housed in an SO-8 package, providing a compact solution for surface mount assembly. Key electrical characteristics include low conduction losses and reduced switching losses, making it suitable for high-efficiency power management applications.

Feature Summary

• Utilizes Single Feature Size strip-based process for high packing density and rugged avalanche characteristics.
• Features low threshold drive capability to facilitate easy interface with standard logic levels.
• Designed with standard outline dimensions to enable automated surface mount assembly processes.

Applications

• DC/DC converters
• Battery management in nomadic equipment
• Power management in cellular phones
• DC motor drive

Procurement Notes

Verify the specific ordering suffix against the official datasheet to confirm package type and temperature range. Ensure compatibility with the target PCB footprint for the SO-8 package. Cross-reference the RDS(on) specifications under actual operating conditions rather than relying solely on typical values found in summary tables.

Selection Notes

Select this component when a dual P-channel configuration is required in a small form factor. The 0.045 Ω on-resistance offers a balance between conduction loss and cost for 20 V systems. Consider the thermal performance of the SO-8 package for the expected load current and ambient temperature conditions.

Part Context

This part belongs to the STS5DPx series of dual P-channel MOSFETs. It shares similar technological foundations with other devices in the STripFET II family, emphasizing manufacturing reproducibility and low alignment sensitivity. It serves as a complementary solution to N-channel counterparts in bridge and half-bridge circuits.

Replacement Considerations

Direct substitutes may include other dual P-channel MOSFETs with similar 20 V ratings and SO-8 packaging. Verify pinout compatibility and thermal resistance parameters before substitution. Check if alternative parts offer improved RDS(on) or higher current handling if system requirements change.