MAX8505EEE+T

Voltage Regulators - DC DC Switching Regulators Overview

The MAX8505EEE+T is a high-efficiency, synchronous step-down DC-DC converter manufactured by Analog Devices Inc./Maxim Integrated. It integrates two N-channel power MOSFETs into a single QSOP-16 package to deliver up to 3A of output current. The device operates from an input voltage range of 2.25V to 5.5V and provides an adjustable output voltage between 800mV and 4.5V. It features a fixed 1MHz switching frequency and includes internal compensation for minimal external component count. The IC supports shutdown mode and functions within an operating temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates two N-channel power MOSFETs for high efficiency in a compact surface-mount package
• Fixed 1MHz switching frequency enables the use of small external inductors and capacitors
• Includes internal compensation network to simplify circuit design and reduce component count
• Supports low-power operation through a dedicated shutdown pin

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered equipment requiring efficient voltage regulation
• Cellular phones and personal digital assistants (PDAs)
• Wireless local area network (WLAN) infrastructure
• General-purpose point-of-load regulation for embedded systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing components. Confirm that the base part number corresponds to the standard MAX8505 specifications. Ensure compatibility with the required QSOP-16 footprint during PCB layout. Check manufacturer documentation for any updated environmental compliance or lead-free status changes.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is needed for converting 3.3V or 5V rails to lower voltages at currents up to 3A. The fixed 1MHz frequency is suitable for applications prioritizing small passive component size over ultra-low noise. Consider the thermal performance of the QSOP-16 package relative to the expected ambient temperature and load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the MAX8505 family of synchronous buck converters. It is designed as a cost-effective alternative to discrete solutions, combining control logic and power switches in one integrated circuit. The series targets mobile and handheld electronics where space and battery life are critical constraints.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for direct cross-reference part numbers from Analog Devices or other manufacturers offering identical 3A synchronous buck topologies. Verify pin-to-pin compatibility if substituting in existing designs. Ensure replacement parts support the same 2.25V to 5.5V input range and 1MHz switching frequency.