FAN2503S28X

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

The FAN2503S28X is a fixed-output low-dropout (LDO) linear voltage regulator manufactured by onsemi, formerly Fairchild Semiconductor. It provides a fixed output voltage of 2.8 V with a maximum continuous output current of 150 mA. The device operates within an input voltage range of 2.7 V to 6.5 V and features a typical dropout voltage of 2.5 mV at full load, with a maximum specified dropout of 180 mV. It offers a line regulation of 0.3 %/V and a load regulation of 2 %. The unit is housed in a surface-mount SOT-23-5 package and is rated for operation across an extended temperature range from -40°C to +125°C.

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

• Provides stable regulated power via a fixed 2.8 V output rail suitable for sensitive digital logic.
• Maintains high efficiency through ultra-low dropout characteristics under varying load conditions.
• Integrates thermal protection mechanisms to safeguard the component during overload or overheating events.

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

• Portable battery-powered consumer electronics requiring efficient voltage regulation
• Wireless communication modules and handheld devices
• Embedded systems utilizing CMOS logic families

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

Verify component authenticity due to discontinued status and potential availability of refurbished units. Confirm that the specific suffix 'X' corresponds to tape-and-reel packaging if required for automated assembly processes. Ensure compatibility with existing PCB footprints designated for SOT-23-5 packages before finalizing procurement decisions.

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

Select this component when a precise 2.8 V supply is necessary for CMOS circuits with moderate current demands up to 150 mA. Consider its wide operating temperature range for industrial or automotive environments. Evaluate the low quiescent current benefits for battery-operated applications where power conservation is critical compared to standard regulators.

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

This part belongs to the FAN2503 series of CMOS LDO regulators designed for low-noise, low-power applications. The series includes various fixed output voltage options within the same SOT-23-5 footprint, allowing for design flexibility while maintaining consistent performance characteristics across different voltage rails.

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

Direct substitutes include other parts within the FAN2503 family offering identical pinouts and electrical specifications but differing only in output voltage settings. Cross-reference with equivalent LDOs from other manufacturers ensuring matching current ratings and package dimensions.