AS3648-ZWLT

Overview

The AS3648-ZWLT is an LED driver IC featuring two outputs, a DC-DC step-up regulator topology, and I2C dimming control. It supports a flash current of 1A and operates within an input voltage range of 2.7 V to 4.4 V. The device dissipates 1.23 W of power and utilizes a 13-WLCSP (2.25x1.5) surface-mount package.

Feature Summary

• Integrates a DC-DC step-up regulator for efficient LED driving
• Supports digital I2C interface for precise dimming control
• Capable of delivering high-current flash output

Applications

• Mobile device camera flash illumination
• Smartphone interior lighting systems
• Compact wearable device indicators

Procurement Notes

Verify component status carefully as the AS3648-ZWLT is scheduled for obsolescence and will be discontinued by the manufacturer. Confirm availability through authorized distributors before finalizing design-in decisions. Ensure all ordering documentation references the exact suffix to match the specified WLCSP package and electrical characteristics.

Selection Notes

Select this component for applications requiring a compact solution with integrated boost regulation and digital control. The small WLCSP footprint suits space-constrained mobile designs. Verify that the system input voltage aligns with the 2.7 V to 4.4 V operating range and that I2C bus compatibility exists within the host controller architecture.

Part Context

This part belongs to the ams OSRAM portfolio of LED lighting drivers designed for mobile and consumer electronics. It complements other sensor interface circuits and power management ICs offered by the manufacturer for integrated photonics solutions in smartphones and wearables.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation due to the discontinuation status. Designers should consult official replacement guides or contact the manufacturer directly for end-of-life transition recommendations.