SIP32408DNP-T1-GE4

Overview

The SIP32408DNP-T1-GE4 is a single-channel load switch IC from Vishay Siliconix, designed for operation within a 1.1 V to 5.5 V input voltage range. It features a typical slew rate of 2.5 ms to control soft-start behavior, limiting inrush current during large capacitive load connections. The device supports a maximum continuous output current of 3.5 A with an on-resistance of 45 mΩ at 1.2 V input. It operates between -40°C and +85°C, housed in a compact TDFN-4 package measuring 1.65 mm by 1.25 mm.

Feature Summary

• Slew rate controlled soft-start functionality limits inrush current and minimizes power rail voltage droop during startup.
• Low-voltage control logic interface allows direct connection to low-voltage control signals without external level shifting circuits.
• Reverse current blocking capability prevents high current flow back into the power source when the switch is off.

Applications

• Portable electronics requiring controlled power sequencing
• Battery-powered devices needing efficient power distribution
• Systems with large capacitive loads requiring inrush current management

Procurement Notes

Verify the specific suffix 'T1-GE4' against official Vishay documentation to confirm tape-and-reel packaging and RoHS compliance status. Ensure the TDFN-4 footprint matches your PCB design constraints. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components, as generic listings may not reflect the exact electrical characteristics or revision level required for your application.

Selection Notes

Select this component when precise control over turn-on slew rate is necessary to protect power supplies from voltage drops caused by large capacitive loads. It is suitable for applications requiring low quiescent current and reverse blocking but does not include an integrated output discharge circuit, which is available in the SiP32409 variant. Consider the 45 mΩ on-resistance for thermal management under full load conditions.

Part Context

This device belongs to the SiP3240x family of smart load switches from Vishay Siliconix. It shares architectural similarities with the SiP32409, differing primarily in the absence of an internal output discharge resistor. Both utilize the same compact TDFN-4 package and operate within identical voltage and temperature ranges, offering a standardized solution for space-constrained power management designs.

Replacement Considerations

SiP32409DNP-T1-GE4: Includes integrated output discharge for faster shutdown; otherwise electrically similar.

FAQ

Does the SIP32408DNP-T1-GE4 have an internal output discharge resistor?

No, the SiP32408 does not integrate an output discharge circuit. For fast discharge capabilities, the SiP32409 variant should be considered.

What is the typical slew rate for this load switch?

The device features a typical slew rate of 2.5 ms, which controls the soft-start time to limit inrush current.