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FAN2558S10X is listed in the Voltage Regulators - Linear, Low Drop Out (LDO) Regulators range at ChipApex. The manufacturer field lists Fairchild Semiconductor. Its product description is IC REG LINEAR 1V 180MA SOT23-5. Review the specifications below when checking this part for your BOM.
The FAN2558S10X is a fixed positive Low Dropout (LDO) voltage regulator manufactured by Fairchild Semiconductor, now part of ON Semiconductor. It provides a fixed output voltage of 1.0V with a maximum output current of 180mA. The device operates within an input voltage range of 2.7V to 5.5V and features a nominal dropout voltage of 0.25V. It is housed in a SOT-23-5 package (JESD-30 code R-PDSO-G5) with five pins. The component is lead-free, RoHS compliant, and classified under ECCN EAR99.
Verify the manufacturer status as Fairchild Semiconductor has been integrated into ON Semiconductor. Confirm if the specific part number requires updating to the dash format (FAN2558-S10X) per ON Semi system requirements. Check for End-of-Life (EOL) notices or Production Change Notices (PCN) affecting availability and marking changes before procurement.
Select this component when a stable 1.0V supply is required from a single-cell lithium-ion battery or similar power source. Ensure the input voltage remains between 2.7V and 5.5V. Consider the SOT-23-5 package constraints for thermal management and PCB space. Verify that the load current does not exceed 180mA to maintain regulation and prevent thermal shutdown.
The FAN2558 series consists of low-power, low-dropout linear regulators designed for portable applications. The FAN2558S10X specifically offers a fixed 1.0V output. The series is characterized by high PSRR and low noise, making it suitable for RF and sensitive analog circuits in mobile devices. It represents a transition period product between Fairchild and ON Semiconductor branding.
Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the integration of Fairchild into ON Semiconductor, verify if existing inventory uses the underscore (_) naming convention versus the new dash (-) convention.
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