MAX4789EUK-T

Current Regulation/Management Overview

The MAX4789EUK-T is a power switch IC designed for power distribution applications. It features current-limit protection with selectable limits of 200 mA, 250 mA, and 300 mA. The device operates within a supply voltage range of 2.3 V to 5.5 V and is housed in an SOT-23-5 package. Key electrical specifications include a maximum on-resistance of 400 mOhms, a maximum turn-on time of 100 us, and a maximum idle time of 40 ns. The component supports surface-mount installation and functions across a temperature range from -40 C to +85 C.

Current Regulation/Management Feature Summary

• Provides precise current-limit protection for load circuits
• Features low on-resistance for efficient power delivery
• Supports controlled turn-on timing to reduce inrush currents

Current Regulation/Management Applications

• Power distribution systems requiring overcurrent protection
• Portable electronic devices with limited power budgets
• Battery-powered equipment needing efficient switching

Current Regulation/Management Procurement Notes

Verify the specific current-limit variant required, as the MAX4789 series includes distinct options for 200 mA, 250 mA, and 300 mA limits. Confirm that the selected part number corresponds exactly to the desired threshold specification. Check availability status carefully, as this item may be subject to restricted supply or discontinuation notices from the manufacturer. Ensure compatibility with the target operating voltage and thermal environment before finalizing procurement.

Current Regulation/Management Selection Notes

Select this component when designing circuits that require integrated overcurrent protection in a compact form factor. The choice depends on matching the specific current-limit value to the load requirements. Consider the package size constraints and the need for controlled turn-on characteristics. Evaluate the on-resistance impact on overall system efficiency and voltage drop under normal operating conditions.

Current Regulation/Management Part Context

This part belongs to the MAX4789 family of power switches manufactured by Analog Devices / Maxim Integrated. These devices are categorized under Power Switch ICs and Switch ICs within the manufacturer's portfolio. The series is designed to offer robust protection features in small packages suitable for space-constrained modern electronics designs.

Current Regulation/Management Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.