FAN2011EMPX

Overview

The FAN2011EMPX is a low-voltage, current-mode synchronous PWM buck regulator manufactured by Fairchild Semiconductor. It delivers a continuous output current of 1.5A with a fixed switching frequency of 1.3MHz. The device operates within an input voltage range of 4.5V to 5.5V and supports an operating temperature range from -40°C to 85°C. It utilizes a surface-mount MLP package with 6 pins.

Feature Summary

• Integrates synchronous rectification for improved efficiency
• Employs current-mode control architecture
• Utilizes pulse width modulation technique

Applications

• Point-of-load regulation in portable electronics
• Battery-powered devices requiring efficient DC-DC conversion
• Embedded systems utilizing 5V input rails

Procurement Notes

Verify the manufacturer designation, as onsemi acquired Fairchild Semiconductor. Confirm the specific suffix EMPX corresponds to the MLP package variant. Ensure compliance with RoHS standards if required for your assembly process. Cross-reference datasheets between Fairchild and onsemi archives to confirm identical specifications.

Selection Notes

Select this component when a compact solution is needed for stepping down 5V inputs to lower voltages at up to 1.5A. The synchronous design offers higher efficiency compared to non-synchronous alternatives. Consider the 1.3MHz frequency for balancing component size and noise performance in space-constrained designs.

Part Context

This part belongs to the FAN2011 family of low-voltage buck regulators. It shares functional similarities with other members like the FAN2011IMPX but differs in packaging. The series is designed for applications requiring high efficiency and small footprint in mobile and industrial environments.

Replacement Considerations

The FAN2011IMPX is a documented alternative within the same product family. Verify pinout compatibility and thermal characteristics before substitution. Ensure the replacement matches the required output current and switching frequency specifications.