MAX8554EEE+

Overview

The MAX8554EEE+ is a synchronous PWM buck switching controller manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates with an input voltage range of 4.5V to 28V and provides one output channel. The device utilizes Quick-PWM technology for efficient power conversion. It is housed in a 16-pin QSOP package designed for surface mount installation. The component supports shutdown functionality and is rated for operation within a temperature range of -40°C to +85°C.

Feature Summary

• Synchronous PWM buck control architecture
• Wide input voltage capability up to 28V
• Quick-PWM transient response technology

Applications

• DDR I and DDR II memory power supplies
• ASIC and CPU core voltages
• AGTL bus termination supplies
• Notebook and LCD-PC power supplies
• Servers and general-purpose step-down converters

Procurement Notes

Verify the specific suffix EEE+ against the official datasheet to confirm the 16-QSOP package variant. Ensure compatibility with the required thermal management solutions for the QSOP form factor. Confirm that the 4.5V to 28V input range aligns with the system design requirements before finalizing procurement orders.

Selection Notes

Select this component when a wide input voltage range up to 28V is required for synchronous buck applications. It is suitable for powering DDR memory, CPUs, and ASICs where fast transient response is critical. Consider the 16-QSOP package constraints regarding PCB space and thermal dissipation capabilities during the design phase.

Part Context

This part belongs to the MAX8554 family of high-performance synchronous PWM controllers. It is designed for applications requiring efficient power conversion from higher voltage rails to lower logic levels. The device integrates the control logic for external N-channel MOSFETs to achieve high efficiency across various load conditions.

Replacement Considerations

Consult official cross-reference lists for verified substitutes. Ensure any replacement maintains the 16-QSOP pinout or requires adapter modifications. Verify that alternative components support the same 4.5V to 28V input range and Quick-PWM performance characteristics.