FAN2306MPX

Overview

The FAN2306MPX is a synchronous buck regulator manufactured by Fairchild Semiconductor, now part of onsemi. It operates with an input voltage range of 4.5 V to 18 V and provides a programmable output voltage from 600 mV to 5.5 V. The device supports up to 6 A of continuous output current. Key electrical parameters include a quiescent current of 18 uA and a switch frequency adjustable between 200 kHz and 1.5 MHz. It functions within a temperature range of -40°C to +125°C and utilizes a PQFN-34 package.

Feature Summary

• Integrated synchronous rectification for high efficiency
• Adjustable switching frequency to optimize external component size
• Built-in shutdown capability for power management

Applications

• Point-of-load regulation for embedded systems
• Power supply stages in industrial equipment
• Telecommunications infrastructure power distribution

Procurement Notes

Verify the manufacturer status as Fairchild Semiconductor has been integrated into onsemi. Confirm that the specific ordering suffix matches current onsemi nomenclature requirements. Check datasheets for any updates regarding pinout or thermal characteristics due to corporate integration. Ensure compliance with current RoHS and REACH standards before procurement.

Selection Notes

Select this component when a compact solution for medium-current applications is required. The wide input voltage range suits various bus voltages. The adjustable frequency allows trade-offs between efficiency and passive component size. Verify thermal performance in the target PQFN-34 package for the expected load conditions.

Part Context

This part belongs to the TinyBuck family of synchronous regulators designed for space-constrained designs. It represents Fairchild's legacy product line which continues under onsemi branding. The PQFN-34 package offers a small footprint relative to its current handling capability, suitable for dense PCB layouts.

Replacement Considerations

Check onsemi website for updated part numbers replacing the underscore notation. Verify if FAN2306AMPX serves as a direct equivalent with identical specifications.