FAN4855MTC

Overview

The FAN4855MTC is a high-efficiency boost regulator IC manufactured by onsemi, housed in an 8-pin TSSOP package. It provides a fixed output current capability of 500 mA and features an adjustable output voltage range. Designed for space-constrained applications, this component integrates the necessary control logic and power switches to step up input voltages efficiently. The device operates within standard industrial temperature ranges and supports surface-mount technology for automated assembly processes.

Feature Summary

• Integrates a high-efficiency boost converter topology with adjustable output voltage regulation
• Provides a regulated 500 mA output current suitable for powering downstream loads
• Utilizes a compact 8-lead TSSOP surface-mount package for PCB space optimization

Applications

• Portable battery-powered devices requiring voltage step-up
• LED driver circuits for illumination applications
• General-purpose DC-DC conversion in consumer electronics

Procurement Notes

Verify the specific suffix (MTC vs MTCX) against the manufacturer's official datasheet to confirm packaging type and tape-and-reel specifications. Confirm RoHS compliance status and lead-free material declarations directly from the latest production documentation. Ensure the ordering part number matches the exact pinout and thermal requirements of your design before finalizing procurement.

Selection Notes

Select this component when a compact solution for stepping up low input voltages to higher levels is required. The 500 mA current limit defines the maximum load capacity, so ensure the application demand does not exceed this rating. Consider the TSSOP package constraints for thermal management and board layout. Verify that the adjustable voltage range covers the specific target output voltage needed for the system.

Part Context

The FAN4855 series belongs to onsemi's portfolio of power management integrated circuits focused on efficient DC-DC conversion. This specific model represents a boost regulator variant designed for mobile and portable applications where size and efficiency are critical. It complements other PMIC offerings by providing a simple, external-component-minimized solution for voltage elevation tasks in small form-factor designs.

Replacement Considerations

Check for the FAN4855MTCX variant, which typically denotes the same electrical characteristics but may differ in reel packaging configuration. Cross-reference with other onsemi boost regulators if pin compatibility or current ratings need adjustment, ensuring functional equivalence in voltage range and switching frequency.