SI3861BDV-T1-E3

Overview

The SI3861BDV-T1-E3 is a single-channel load switch IC manufactured by Vishay Siliconix, designed for power distribution applications. It operates within a supply voltage range of 4.5 V to 20 V and supports continuous output currents up to 2.3 A. The device features a low on-resistance of 0.105 Ω at 10 V input and 0.175 Ω at 4.5 V input. It is housed in a small TSOP-6 package with a maximum power dissipation of 0.83 W. Key electrical characteristics include a 30 V ESD protection rating on the input switch and an adjustable slew rate for controlled turn-on behavior.

Feature Summary

• Integrated level-shift control allowing high-side switching operation with low-voltage logic inputs
• Adjustable slew rate capability to manage inrush current during power-up sequences
• Built-in electrostatic discharge (ESD) protection rated at 30 V on the input pin

Applications

• Power distribution networks in portable electronic devices
• Load switching for peripheral modules in embedded systems
• Battery-powered equipment requiring efficient power management

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for obsolescence notices, as availability may be limited. Ensure storage conditions meet semiconductor handling standards to prevent moisture sensitivity issues prior to assembly.

Selection Notes

Select this component when a compact single-channel load switch with high voltage tolerance is required. The TSOP-6 package suits space-constrained designs. Consider the specific on-resistance values at your operating input voltage to ensure thermal performance meets system requirements under expected load currents.

Part Context

This part belongs to the Vishay Siliconix Si38xx series of load switches. These components are engineered for efficient power routing in mobile and industrial applications. The series emphasizes small footprint solutions with integrated protection features, distinguishing them from discrete MOSFET implementations by offering simplified control interfaces.

Replacement Considerations

Publicly confirmed substitute part numbers for this specific component were not identified in the provided documentation.