MAX14544ETA+

Overview

The MAX14544ETA+ is a power switch IC designed for VBUS accessory distribution. It operates within a supply voltage range of 2.3V to 5.5V and supports an operating temperature range of -40°C to +85°C. The device features an autoretry mechanism for fault recovery, distinguishing it from latch-off variants. It is housed in an 8-WFDFN exposed pad package with dimensions of 2mm x 2mm.

Feature Summary

• Autoretry functionality for automatic fault recovery
• VBUS accessory power distribution capability
• High output withstand voltage when switched off

Applications

• USB VBUS power switching
• Accessory power distribution
• Portable device power management

Procurement Notes

Verify the specific package variant, as datasheets may list both TDFN-8-EP and WFDFN configurations. Confirm the presence of the autoretry feature, as this distinguishes the MAX14544 from similar latch-off parts like the MAX14545. Ensure the component matches the exact suffix requirements for your assembly process.

Selection Notes

Select this component when automatic retry after a fault condition is required rather than a latched shutdown. Compare against the MAX14545 if a permanent latch-off behavior is preferred. Verify that the 28V output withstand rating meets the system's transient voltage requirements during off-states.

Part Context

This part belongs to the Maxim Integrated power switch family, specifically targeting USB accessory applications. It serves as a low-cost solution for managing power delivery to peripherals connected via VBUS lines in mobile and embedded systems.

Replacement Considerations

The MAX14545ETA+ is a confirmed substitute but utilizes a latch-off feature instead of autoretry. Verify that the change in fault response behavior aligns with the system design requirements.