EL7556DCMZ-T13

Overview

The EL7556DCMZ-T13 is a synchronous step-down switching regulator IC manufactured by Renesas Electronics Corporation. It operates with an input voltage range of 4.5V to 5.5V and provides a single adjustable positive output from 1V to 3.8V at up to 6A. The device features a switchable frequency between 200kHz and 1MHz. It is housed in a 28-SOIC package (0.295 inch width) and supports operation temperatures from -40°C to 85°C.

Feature Summary

• Synchronous rectification for improved efficiency
• Adjustable switching frequency capability
• Wide input voltage tolerance

Applications

• Portable computing systems
• Industrial control modules
• Communication equipment power distribution

Procurement Notes

Verify the exact suffix against official documentation, as distributor listings may contain discrepancies regarding tape-and-reel packaging versus tube formats. Confirm RoHS compliance status and moisture sensitivity level prior to procurement planning. Check for end-of-life notices or product change notifications that may affect long-term availability.

Selection Notes

Select this component when a 6A buck converter is required within a narrow 5V input window. The 28-pin SOIC package offers thermal performance suitable for moderate power densities. Ensure the application requires an adjustable output voltage rather than a fixed rail. Verify that the operating temperature range meets the environmental constraints of the target system.

Part Context

This part belongs to the EL7556 family of high-current synchronous buck regulators. It shares core topology with variants like the EL7566DREZ but differs in input voltage specifications and package type. The EL7556 series is designed for applications requiring efficient power conversion from standard 5V rails to lower voltage logic levels.

Replacement Considerations

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