MAX1820ZEBC+

Overview

The MAX1820ZEBC+ is a high-efficiency, synchronous step-down switching regulator designed for WCDMA and DDR power applications. It integrates a 600mA power switch and operates from an input voltage range of 2.6V to 5.5V. The device provides an adjustable output voltage between 400mV and 3.4V with a fixed switching frequency of 1MHz. Packaged in a compact UMAX-10 format, it supports surface-mount installation and functions within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates a synchronous buck converter topology for high efficiency
• Supports wide input voltage range suitable for single-cell lithium battery systems
• Features fixed 1MHz switching frequency to minimize external component size

Applications

• WCDMA base station power management
• DDR memory subsystem regulation
• Portable communication equipment power supplies

Procurement Notes

Verify the specific suffix 'ZEBC+' against official Analog Devices documentation to confirm package type and temperature grade. Confirm availability status as distribution channels may list limited stock or obsolete status. Ensure the ordering part number matches the required pinout and thermal characteristics for your PCB layout.

Selection Notes

Select this component when designing space-constrained power stages requiring integrated synchronous rectification. It is appropriate for applications needing a fixed 1MHz frequency to reduce inductor size. Consider the 600mA output current limit and the 400mV minimum output voltage constraint during system architecture planning.

Part Context

This part belongs to the Maxim Integrated line of specialized power management ICs. It is engineered specifically for wireless infrastructure and memory systems. The UMAX-10 package offers a small footprint compared to traditional SOIC regulators, facilitating dense board layouts in modern electronic devices.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify compatibility with existing control loops and thermal requirements before considering alternative manufacturers.