The Vishay SIP21101DR-18-E3 is a power switch IC designed for load switching applications. This integrated circuit provides efficient power distribution with integrated protection features, enabling robust and reliable operation in demanding environments. It is part of Vishay's ePower™ family of load switches, known for their high performance and integrated functionalities.

Applications

• Notebook Computers: Power distribution and load management in laptops.
• Tablets: Power switching for various tablet components.
• Solid State Drives (SSDs): Power control for SSD operation.
• Point of Load (POL) Converters: Enabling and disabling power to POL converters.
• General Load Switching: Versatile applications requiring efficient and controlled power switching.

Features

• Input Voltage Range: Operates from 1.5 V to 5.5 V.
• Low On-Resistance: Typical RDS(ON) of 18 mΩ at V<sub>IN = 5 V, minimizing power loss.
• Integrated Protection: Includes over-temperature protection (OTP) and short-circuit protection (SCP).
• Controlled Turn-On: Limits inrush current during startup.
• Logic Level Enable: Compatible with low voltage logic control.
• Small Footprint: Available in a compact PowerPAK® SC-70 package.
• Halogen-Free and RoHS Compliant: Environmentally friendly.

Benefits

• High Efficiency: Low on-resistance reduces power dissipation, improving overall system efficiency.
• Reliable Protection: Integrated OTP and SCP protect the device and the load from damage.
• Simplified Design: Integrated features reduce the need for external components, simplifying circuit design.
• Compact Size: Small package allows for use in space-constrained applications.
• Improved System Performance: Controlled turn-on minimizes voltage droop and inrush current, enhancing system stability.

Additional Details

The SIP21101DR-18-E3 features a P-channel MOSFET, providing efficient switching capabilities. Its thermal protection ensures that the device shuts down if the junction temperature exceeds a safe threshold, preventing thermal runaway. The short-circuit protection limits the output current in case of a short, protecting both the load and the power switch. The device's controlled turn-on characteristic helps to reduce voltage drops and ringing on the power rail during startup. The enable pin allows for easy control of the power switch using a logic signal.

Technical Specifications:

• V<sub>IN Range: 1.5 V to 5.5 V
• R<sub>DS(ON): 18 mΩ (typical) at V<sub>IN = 5 V
• Operating Temperature Range: -40 °C to +85 °C
• Package: PowerPAK® SC-70