FAN2310AMPX

Overview

The FAN2310AMPX is a synchronous buck regulator from onsemi, originally developed under the Fairchild Semiconductor brand. It integrates a high-side and low-side N-channel MOSFET driver with a current-mode PWM controller to deliver up to 10A of output current. The device operates within an input voltage range of 4.5V to 28V and supports adjustable output voltages. Key electrical parameters include a switching frequency adjustable from 300kHz to 600kHz and a quiescent current of approximately 1.5mA. It features a compact 34-lead QFN package measuring 5.5mm by 5.0mm.

Feature Summary

• Integrates synchronous rectification with internal high-side and low-side drivers for efficient power conversion.
• Utilizes current-mode control architecture to provide fast transient response and inherent cycle-by-cycle overcurrent protection.
• Supports wide input voltage ranges suitable for various industrial and computing power distribution networks.

Applications

• Point-of-load (POL) regulation in telecommunications infrastructure
• Power supply modules for industrial automation systems
• Voltage regulation for embedded computing platforms

Procurement Notes

Verify component authenticity through authorized onsemi distributors or certified partners. Confirm that the part number suffix matches the specific tape-and-reel or cut-tape configuration required for your assembly line. Review the latest datasheet revision to ensure compatibility with your design specifications, as legacy Fairchild nomenclature may have been updated during the integration process.

Selection Notes

Select this component when designing systems requiring high current density and wide input voltage tolerance. Ensure the thermal management solution accommodates the power dissipation characteristics of the 34-lead QFN package. Verify that the external inductor and capacitor values align with the desired switching frequency and output ripple requirements specified in the official technical documentation.

Part Context

This device belongs to the FAN2310 family of synchronous buck regulators. It represents a transition from the original Fairchild Semiconductor product line to onsemi's portfolio following corporate integration. The part retains the core functionality of its predecessors while adhering to updated ordering nomenclature standards, specifically replacing underscores with dashes in official documentation.

Replacement Considerations

Consult onsemi's official cross-reference guides for verified substitute part numbers. Direct replacements must maintain compatible pinouts, electrical ratings, and thermal performance. Generic equivalents are not recommended without rigorous validation against the original datasheet specifications.