EL7556DCMZ

Overview

The EL7556DCMZ is a synchronous buck switching regulator IC manufactured by Renesas Electronics Corporation. It features an adjustable output voltage range from 1V to 3.8V and supports a maximum output current of 6A. The device operates with an input voltage between 4.5V and 5.5V and utilizes a 28-SOIC package with a width of 7.50mm. Its switching frequency ranges from 200kHz to 1MHz, and it functions within a temperature range of -40°C to +85°C.

Feature Summary

• Synchronous rectification architecture for improved efficiency
• Adjustable output voltage capability
• Wide operating input voltage range

Applications

• Point-of-load regulation in computing systems
• Power distribution networks for embedded processors
• Industrial control system power supplies

Procurement Notes

Verify component authenticity through authorized channels as the part status is listed as obsolete. Confirm package integrity and pin alignment against the 28-SOIC specification before integration. Check for relevant product change notifications regarding manufacturing site updates or labeling modifications to ensure compliance with current assembly requirements.

Selection Notes

Select this component when a high-current synchronous buck converter is required for 5V input systems. Ensure the design accommodates the 28-SOIC footprint and thermal dissipation needs for 6A operation. Consider the obsolete status and evaluate long-term supply chain stability compared to newer alternatives in the portfolio.

Part Context

This device belongs to the EL7556 series of power management integrated circuits designed for step-down conversion applications. It represents a specific surface-mount variant within Renesas' broader portfolio of DC-DC switching regulators, targeting efficient power delivery in compact electronic designs requiring stable voltage regulation.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.