MAX1821XEBC+T

Overview

The MAX1821XEBC+T is a synchronous step-down DC-DC buck regulator designed for high-density power applications. It features an input voltage range up to 5.5V and delivers a maximum output current of 600mA. The device provides an adjustable output voltage ranging from 1.25V to 5.5V, housed in a compact 12-pin UCSP package. Key electrical specifications include integrated under-voltage lockout and over-current protection mechanisms to ensure system reliability.

Feature Summary

• Synchronous step-down architecture optimized for portable RF and microprocessor core power
• Integrated under-voltage lockout and over-current protection for enhanced safety
• Compact 12-pin UCSP package design suitable for space-constrained layouts

Applications

• Powering microprocessor cores in portable devices
• Portable RF circuitry power management
• WCDMA cellular phone systems

Procurement Notes

Verify the specific suffix and tape/reel configuration against the manufacturer's official datasheet before ordering. Confirm that the component meets RoHS compliance requirements if mandated by your project specifications. Ensure the supplier provides valid traceability documentation for this Analog Devices Inc./Maxim Integrated part number.

Selection Notes

Select this regulator when a compact footprint and efficient synchronous buck topology are required for low-to-medium current loads. The adjustable output range allows flexibility for various logic levels. Consider the thermal performance within the UCSP package relative to the expected ambient temperature and load conditions.

Part Context

This component belongs to the Maxim Integrated portfolio of special purpose regulators. It is engineered to provide stable power delivery for sensitive digital circuits in mobile and handheld electronics. The design emphasizes efficiency and size reduction compared to traditional linear regulators or asynchronous switching solutions.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source data. Consult the manufacturer's official documentation for recommended cross-reference options or updated product line replacements.