EL7563CRE

Overview

The EL7563CRE is a monolithic synchronous step-down DC/DC regulator manufactured by Elantec (now Renesas). It delivers 4A continuous output current with up to 95% efficiency. The device operates at a constant frequency PWM mode, supporting external synchronization. Key electrical parameters include an input voltage range of 3V to 3.6V and an adjustable output voltage from 1.0V to 2.5V. It features integrated synchronous MOSFETs, patented resistorless current sensing for cycle-by-cycle current limiting, and internal soft-start. The component supports multiple supply start-up tracking and includes over-voltage, over-temperature, and under-voltage lockout protections.

Feature Summary

• Integrated synchronous MOSFETs and current mode controller
• Patented on-chip resistorless current sensing
• Power tracking for multi-converter sequencing
• Junction temperature indicator

Applications

• Desktop power supplies
• Portable electronic devices
• Multi-rail system power distribution

Procurement Notes

Verify the manufacturer status as Elantec was acquired by Intersil, which is now part of Renesas Electronics. Ensure the specific suffix 'CRE' matches the required package type and temperature rating in official datasheets. Confirm RoHS compliance and lead times through authorized distributors, as availability may vary due to product lifecycle changes.

Selection Notes

Select this component for applications requiring high efficiency and compact design with minimal external components. It is suitable where precise current limiting and thermal monitoring are critical. Consider the 3V to 3.6V input constraint and ensure the load current does not exceed 4A. Verify compatibility with the desired switching frequency and synchronization requirements.

Part Context

The EL7563 belongs to the family of monolithic synchronous buck regulators designed for high-density power conversion. It combines control logic, gate drivers, and power switches into a single IC. This integration reduces board space and simplifies design compared to discrete solutions. The series targets applications needing reliable performance with built-in protection features.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Users should consult Renesas or Intersil official resources for direct replacements or pin-compatible alternatives.