MAX1820XEUB+T

Overview

The MAX1820XEUB+T is a high-efficiency, synchronous buck switching regulator designed for WCDMA and portable applications. It delivers a continuous output current of 600 mA with an integrated 1.55 A power switch. The device operates from an input voltage range of 2.6 V to 5.5 V and provides an adjustable output voltage between 400 mV and 3.4 V. It features a fixed 1 MHz switching frequency and utilizes a UMAX-10 surface-mount package. The component supports operation within a temperature range of -40°C to +85°C.

Feature Summary

• Synchronous step-down topology ensures high conversion efficiency across load conditions.
• Integrated high-current power switch eliminates the need for external inductors or diodes.
• Fixed 1 MHz switching frequency allows for compact passive component selection.

Applications

• WCDMA base station power distribution
• Portable electronic devices requiring efficient voltage regulation
• Battery-powered systems with single-cell lithium-ion inputs

Procurement Notes

Verify availability status as supply may be limited or subject to factory special orders. Confirm RoHS compliance details through official documentation. Ensure the UMAX-10 package footprint matches your PCB design requirements before finalizing procurement decisions.

Selection Notes

Select this component when a compact, high-efficiency solution is required for converting 5V or battery sources to lower logic voltages. The 600 mA output capability suits moderate load applications where space constraints limit larger regulators. Verify thermal performance under maximum load conditions given the small package size.

Part Context

This part belongs to the MAX1820 series of switching regulators optimized for wireless communications. It shares functional similarities with other MAX1820 variants but is distinguished by its specific electrical ratings and package configuration. The series targets applications demanding reliable power management in mobile environments.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Consult manufacturer cross-reference tools for potential alternatives if direct replacement is necessary.

FAQ

What is the maximum switching frequency of the MAX1820XEUB+T?

The device operates at a fixed switching frequency of 1 MHz.

Does the MAX1820XEUB+T include internal protection features?

Yes, it includes overcurrent protection and thermal shutdown capabilities inherent to its synchronous buck design.