Microchip Power Load Distribution Switch IC, Active High, 5.5V

The Microchip Power Load Distribution Switch IC (5.5V) is a robust power load distribution switch designed for precise current limiting and power management in general purpose applications. Its fixed and adjustable current limiting provides flexible control, making it well suited to systems that require protection against overcurrent conditions.

Overview

Comprehensive thermal protection automatically shuts down the device should internal temperatures reach unsafe levels. This safeguards both the IC and the connected load during high current or fault conditions, supporting overall system reliability. The device features a self-contained FET with a user-adjustable current limit and provides a choice of active high or active low enable logic via its enable pin, offering design flexibility. Its compact SOT-23-5 package suits space-constrained applications.

Key Features

• Fault reporting for system diagnostics, with fault blanking to help prevent false alarms caused by electrical noise
• Adjustable output slew rate control, allowing the output transition speed to be tailored to application requirements and helping to minimise EMI
• Under-voltage lock-out (UVLO) with a variable threshold for adjustable trip points across different supply voltages
• Automatic output on after a fault condition clears, and automatic load discharge for managing capacitive loads
• Soft-start feature to limit large inrush currents during power-up, protecting the power source and the load

Dimensions

Width 3.3, depth 1.5 and height 4.3, with a weight of 0.054 g.

With its blend of protection features, configurability and compact form factor, this IC is a reliable solution for managing power distribution and enhancing system safety.