MAX1838EEE

Overview

The MAX1838EEE+ is a dual high-side power switch IC designed for USB power distribution applications. It features two independent channels, each capable of delivering up to 1.2 A of output current. The device operates within a supply voltage range of 4.75 V to 5.25 V and includes fault blanking with auto-reset functionality to meet IEC specifications for USB ports. Packaged in a 16-pin QSOP (PQSOP-16) surface-mount package, it supports an operating temperature range from -40°C to +85°C. Key electrical parameters include a maximum power dissipation of 667 mW and a typical quiescent current.

Feature Summary

• Dual-channel architecture providing independent high-side switching for USB power distribution
• Integrated fault protection with automatic reset capability to ensure port recovery
• Compliance with IEC specifications for USB port safety and reliability

Applications

• USB hub power management circuits
• Portable computer peripheral power distribution
• Industrial USB interface modules requiring overcurrent protection

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm the specific suffix (e.g., EEE+) matches design requirements. Note that this part may be subject to limited availability or discontinuation status; check current lifecycle data before finalizing procurement plans.

Selection Notes

Select this component when designing systems requiring dual isolated USB power switches with built-in fault handling. Ensure the QSOP-16 package fits the PCB layout constraints. Verify that the 1.2 A per channel rating meets the load requirements and that the 4.75 V to 5.25 V supply range aligns with the system power rail.

Part Context

Part of the Maxim Integrated USB switch family, the MAX1838 series focuses on protecting downstream USB devices from overcurrent conditions. It integrates control logic for fault detection and reset, simplifying design compared to discrete solutions. The EEE+ variant denotes the lead-free, RoHS-compliant version in the standard QSOP package.

Replacement Considerations

Check Analog Devices official documentation for direct pin-compatible replacements or updated series members. Verify functional equivalence regarding current limits and reset behavior if substituting due to obsolescence.