MIC2026-1BN

Overview

The MIC2026-1BN is a dual high-side power switch IC from Microchip Technology, designed for power distribution applications. It features two N-channel outputs with a maximum output current of 1.25A per channel and a fixed current limit of 1.5A. The device operates within a supply voltage range of 2.7V to 5.5V and has a typical on-resistance of 90 mOhms. It includes integrated protection against overcurrent, overtemperature, and under-voltage lockout. The component is housed in an 8-SOIC package and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Dual high-side power switching capability with independent control inputs
• Integrated fault protection including fixed current limiting, thermal shutdown, and under-voltage lockout
• Controlled slew rate to minimize inrush current during turn-on
• Status flag output indicating active or fault conditions

Applications

• Power distribution in embedded systems
• Hot-swap controller applications
• Peripheral power management in industrial equipment
• Load switching for USB or other bus-powered devices

Procurement Notes

Verify the specific suffix 'BN' against official Microchip documentation to confirm pinout, package dimensions, and electrical tolerances, as suffixes often denote specific tape-and-reel quantities or temperature grades. Ensure compatibility with your PCB footprint and thermal requirements. Cross-reference the datasheet revision date to ensure all latest errata and design recommendations are considered before finalizing procurement.

Selection Notes

Select this component when dual high-side switching with integrated protection is required for low-voltage loads up to 5.5V. The 1.25A continuous current rating suits moderate load applications. Consider the SOIC-8 package for surface-mount assembly. Evaluate if the fixed current limit and thermal protection meet your system's safety margins without requiring external sensing components.

Part Context

The MIC2026 series belongs to Microchip's portfolio of power distribution switches. These devices are engineered to replace discrete MOSFET solutions, offering reduced board space and simplified design. The MIC2026-1 variant specifically provides two channels in a compact package, making it suitable for applications requiring multiple isolated power rails from a single source.

FAQ

What is the function of the status flag pin?

The status flag pin indicates the operational state of the switches. It typically goes low when a fault condition (such as overcurrent or overtemperature) occurs, allowing the system controller to monitor switch health.

How does the controlled slew rate benefit the circuit?

The controlled slew rate limits the rate at which the output voltage rises, thereby reducing inrush current when charging large capacitive loads. This prevents voltage droop on the input supply line.