ISL97682IRTZR5509

Overview

The ISL97682IRTZR5509 is a dual-output DC-DC regulator from Renesas Electronics, designed for LED backlight applications. It utilizes a step-up (boost) topology with an internal switch to drive LEDs efficiently. The device operates on a supply voltage range of 4V to 26.5V and supports a maximum output voltage of 45V. It provides a regulated output current of 100mA per channel and features PWM dimming capability. Packaged in a compact 16-TQFN (3x3mm) format with an exposed pad, it is suitable for space-constrained designs.

Feature Summary

• Dual-channel output configuration for independent LED control
• Integrated boost converter with internal power switch
• Supports pulse-width modulation (PWM) dimming for brightness adjustment

Applications

• LED backlighting systems
• Portable electronic displays
• Mobile device illumination

Procurement Notes

Verify the specific suffix R5509 against official Renesas documentation to confirm tape-and-reel specifications and lot traceability. Ensure compatibility with existing PCB footprints for the 16-TQFN package. Confirm RoHS compliance status through the manufacturer's latest certification records before finalizing procurement orders.

Selection Notes

Select this component when a dual-channel boost driver is required for low-current LED arrays. The 100mA output rating suits standard indicator or small display backlights. Consider the 16-TQFN package size for board space limitations. Verify that the input voltage range aligns with the system's power supply architecture.

Part Context

This part belongs to the ISL97682 series of LED drivers from Renesas. The series focuses on efficient power management for portable electronics. The specific model integrates regulation and switching functions into a single compact IC, reducing external component count compared to discrete solutions.

Replacement Considerations

Check for direct pin-compatible alternatives within the Renesas portfolio. Verify if other dual-channel boost drivers meet the 100mA output and 45V max voltage requirements. Ensure any substitute maintains the same TQFN footprint and thermal characteristics.