FAN2502S28X

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The FAN2502S28X is a fixed-output 2.8V CMOS Low Dropout (LDO) linear regulator from Fairchild Semiconductor, rated for a maximum output current of 150 mA. It operates within an input voltage range up to 6 V and features a typical dropout voltage of 0.18 V at full load. The device draws a quiescent current of 50 µA and provides 43 dB power supply rejection ratio at 120 Hz. It is housed in a compact SOT-23-5 surface-mount package and includes an enable/shutdown control feature for power management.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Ultra-low power consumption with minimal ground current draw
• Low dropout voltage capability for efficient operation near input limits
• Integrated enable/shutdown control for system power management

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Battery-powered portable electronic devices
• RF and communication modules requiring stable low-noise supplies
• Microcontroller peripheral power regulation

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to discontinued status. Confirm lot traceability and storage conditions to ensure performance integrity. Cross-reference datasheet revisions to match specific application requirements. Validate packaging specifications against handling needs. Ensure compliance with relevant environmental standards before integration.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this regulator when a fixed 2.8V output is required with minimal quiescent current. Consider the SOT-23-5 package size constraints and thermal dissipation capabilities. Evaluate input voltage headroom against the specified dropout characteristics. Verify compatibility with external capacitor values for stability. Assess shutdown current requirements if power saving is critical.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This component belongs to the FAN2502 series of 150 mA CMOS LDO regulators manufactured by Fairchild Semiconductor, now part of onsemi. The series offers various fixed output voltages and shares common architectural features such as low dropout performance and enable controls. The FAN2502S28X specifically denotes the 2.8V output variant in the SOT-23-5 package.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult official obsolescence notices or manufacturer replacement guides for verified alternatives.