FAN8060EMPX

Voltage Regulators - DC DC Switching Regulators Overview

The FAN8060EMPX is a step-down DC-DC switching regulator manufactured by onsemi, formerly Fairchild Semiconductor. It operates with an input voltage range of 2.5 V to 5.5 V and provides a fixed 1.2 V output or adjustable output configuration. The device delivers a maximum output current of 1 A and integrates a high-side N-channel MOSFET switch. It supports a switching frequency up to 1.2 MHz, enabling the use of compact external components. The controller is housed in a 10-pin MLP package measuring 3 mm x 3 mm x 0.75 mm, suitable for surface mount applications across a temperature range of -40 °C to +85 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-side N-channel power MOSFET switch within the controller package.
• Supports fixed 1.2 V output or adjustable output via external resistor divider.
• Operates at switching frequencies up to 1.2 MHz for reduced passive component size.
• Includes internal soft-start circuitry to limit inrush current during startup.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable consumer electronics requiring efficient voltage regulation
• Battery-powered devices utilizing single-cell lithium-ion or lithium-polymer sources
• Embedded systems with low-voltage digital logic requirements

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the ordering suffix 'EMPX' corresponds to the MLP-10 package variant. Confirm manufacturer lineage from Fairchild Semiconductor to onsemi for datasheet consistency. Ensure compatibility with 1.2 V fixed or adjustable output configurations as specified in the official electrical characteristics table.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is required for stepping down 5 V sources to lower voltages. The integrated MOSFET eliminates the need for external switching elements. Verify that the 1 A current capability meets load requirements and that the 1.2 MHz frequency aligns with inductor selection constraints for the target PCB area.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the FAN8060 family of synchronous buck converters. It is designed for applications where space savings and efficiency are critical. The MLP package offers a small footprint compared to traditional DIP or SOIC packages, facilitating dense board layouts in modern portable devices.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for direct pin-compatible alternatives within the same family. Verify if updated revisions from onsemi offer improved thermal performance or extended temperature ranges. Ensure substitute parts maintain the 1.2 MHz switching frequency and 1 A current rating.