FAN5235MTCX

Special Purpose Regulators Overview

The FAN5235MTCX is a high-efficiency, high-precision DC/DC switching controller manufactured by Fairchild Semiconductor. Designed for notebook converters and mobile PC applications, it manages dual-output voltage regulation to deliver stable 3.3V and 5V rails from a single controller unit. The device operates with a maximum switching frequency of 345kHz and utilizes current-mode control architecture. It is housed in a 24-pin TSSOP package (PDSO24) and is classified as a special purpose regulator IC within the power management category.

Special Purpose Regulators Feature Summary

• Provides advanced power control solution for demanding mobile computing applications
• Manages dual-output voltage regulation delivering stable 3.3V and 5V rails
• Utilizes current-mode control architecture for high efficiency and precision

Special Purpose Regulators Applications

• Notebook converter systems
• Mobile PC voltage regulation
• Dual-output power supply designs

Special Purpose Regulators Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to discontinued status. Confirm package integrity and pin alignment against the 24-TSSOP specification. Check for RoHS3 compliance documentation if required for specific manufacturing standards. Ensure replacement parts match the original electrical characteristics and thermal requirements.

Special Purpose Regulators Selection Notes

Select this component for applications requiring integrated dual-output regulation in space-constrained mobile devices. Consider the 345kHz switching frequency for EMI management and transformer size optimization. Evaluate thermal performance within the TSSOP package for the target enclosure environment. Verify compatibility with existing PCB layout constraints for the 24-pin footprint.

Special Purpose Regulators Part Context

This part belongs to Fairchild's special purpose regulator family, specifically optimized for portable electronics. It integrates control logic for managing multiple output voltages, reducing component count compared to discrete solutions. The device supports efficient power conversion typical of notebook and mobile PC power architectures.

Special Purpose Regulators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.