EL7513IYZ-T7

Overview

The EL7513IYZ-T7 is a monolithic step-up DC-DC regulator designed for driving white LEDs, manufactured by Renesas Electronics Corporation. It operates with an input voltage range of 2.5V to 5.5V and provides a fixed output current capability of 500mA. The device integrates a 1.6MHz switching frequency to minimize external component size. It features PWM dimming control for brightness adjustment and includes protection mechanisms such as thermal shutdown and soft-start functionality. Packaged in an 8-pin MSOP, it supports surface-mount installation.

Feature Summary

• Integrated high-efficiency step-up converter topology optimized for LED drive applications
• Supports pulse-width modulation (PWM) dimming for precise brightness control
• Includes built-in thermal shutdown and soft-start circuitry for system reliability

Applications

• White LED backlighting for portable electronic devices
• General-purpose step-up voltage regulation in battery-powered systems
• LED driver circuits requiring compact surface-mount solutions

Procurement Notes

Verify the manufacturer marking and lot code against official Renesas documentation to confirm authenticity. Check for end-of-life status or obsolescence notices prior to procurement. Ensure the package variant matches the required pinout and thermal characteristics. Confirm RoHS compliance status through the specific datasheet revision. Validate supply chain sources to avoid counterfeit components.

Selection Notes

Select this component when a compact, fixed-frequency boost regulator is needed for single-string white LED applications. Consider the 500mA output current limit and 5.5V maximum input voltage constraints during design. Evaluate the 8-pin MSOP package for space-constrained PCB layouts. Compare switching frequency requirements against external inductor selection criteria.

Part Context

This part belongs to the EL7513 series of LED drivers from Renesas Electronics. It is functionally related to other members like the EL7530, though differing in topology and application focus. The series targets power management needs in mobile and consumer electronics. Renesas acquired Intersil, which originally developed these parts, influencing the product lineage.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Consult official Renesas documentation for direct replacements or cross-reference guides.