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FAN2503S33X is listed in the Voltage Regulators - Linear, Low Drop Out (LDO) Regulators range at ChipApex. The manufacturer field lists onsemi. Its product description is IC REG LINEAR 3.3V 150MA SOT23-5. Review the specifications below when checking this part for your BOM.
The FAN2503S33X is a fixed-output low-dropout (LDO) voltage regulator manufactured by onsemi. It provides a stable 3.3 V output with a maximum current capacity 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, with a maximum specified at 180 mV. It offers a line regulation of 0.3 %/V and load regulation of 2 %. The unit maintains a voltage accuracy of 2 % and functions reliably across an extended temperature range from -40 °C to +125 °C. It is housed in a compact SOT-23-5 surface-mount package.
Verify component authenticity through official onsemi channels or authorized distributors. Confirm the specific suffix 'X' corresponds to the required packaging configuration. Check for RoHS compliance documentation as indicated in manufacturer specifications. Ensure the part status is reviewed, as availability may vary. Validate that the SOT-23-5 package matches the design requirements before integration.
Select this regulator when a fixed 3.3 V supply is required for portable devices. Consider the 150 mA output current limit against peak load demands. Evaluate the 2.7 V minimum input voltage to ensure sufficient headroom. The wide operating temperature range supports harsh environments. Compare dropout characteristics against other LDOs if low voltage differential is critical.
This component belongs to the FAN2503 series of micropower low-dropout voltage regulators. The series utilizes CMOS technology to deliver economic performance for portable electronics. It is categorized under PMIC - Power Management ICs. The product is identified by the manufacturer onsemi and is designed for surface-mount installation.
Public confirmed substitute part numbers are not available in the provided source material.
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