ZXSC380FHTA

Overview

The ZXSC380FHTA is a highly integrated single-cell LED driver IC manufactured by Diodes Incorporated. It operates as a DC-DC boost converter with an internal switch, designed to drive LEDs from low input voltages ranging from 0.8V to 6V. The device provides a regulated output current of 18mA and supports a maximum output voltage of 20V. Operating at a fixed frequency of 160kHz, it functions within a temperature range of 0°C to 85°C. Packaged in a SOT-23-3 surface-mount case, this component is currently obsolete and no longer in production.

Feature Summary

• Integrates a boost topology with an internal power switch for compact design
• Regulates constant current output suitable for driving single or multiple LEDs
• Operates efficiently from very low input supply voltages starting at 0.8V

Applications

• Backlighting for portable electronic devices
• LED illumination powered by 1.2V or 1.5V battery cells
• Low-voltage step-up conversion for indicator lights

Procurement Notes

This component has been officially declared obsolete by the manufacturer. Production discontinuation notifications indicate that the part is no longer available for new manufacturing orders. Existing stock may be limited to surplus channels. Designers must verify end-of-life status before finalizing any procurement plans due to the lack of future supply assurance.

Selection Notes

Engineers should evaluate alternative active components from the same manufacturer family or competitors offering similar boost LED driver specifications. Key selection criteria include matching the input voltage range, required output current, and package footprint. Since this specific part number is discontinued, verifying pin compatibility and electrical performance of potential substitutes is essential for maintaining circuit functionality without redesign.

Part Context

The ZXSC380 series represents a line of LED drivers focused on low-voltage applications. This specific model utilizes a SOT-23-3 package to minimize board space. It belongs to the broader category of power management ICs used in consumer electronics. The device integrates control logic and power stages into a single small form factor solution.

Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the available documentation. Users must identify equivalent active components based on technical specifications such as boost topology, current regulation, and package type.