FAN2505S30X

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

The FAN2505S30X is a fixed-output linear regulator from the FAN2504/05 family, manufactured by onsemi. It provides a nominal output voltage of 3V with a maximum continuous output current of 200mA and a peak current capability of 300mA. The device operates within an input voltage range of 2.7V to 6.5V and features a maximum dropout voltage of 200mV at full load. It utilizes CMOS technology to achieve a ground pin current of 75µA at 200mA output. The component includes thermal limiting protection and an enable/shutdown control function. It is housed in a compact SOT-23-5 surface-mount package.

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

• Features an error flag output (ERR) that indicates when the output voltage drops below 95% of the nominal value due to fault conditions such as low input voltage or overheating.
• Utilizes CMOS process technology to provide ultra-low power consumption and extremely low dropout voltage characteristics suitable for battery-powered applications.
• Incorporates onboard thermal protection circuitry that automatically shuts down the output if the junction temperature exceeds 150°C, re-enabling once cooled.
• Offers flexible loop stability across a wide range of external capacitor ESR values, accommodating various ceramic and tantalum types.

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

• GSM and TDMA cellular handsets
• Laptop, notebook, and palmtop computers
• Portable cameras and video recorders
• Personal Digital Assistants (PDAs)

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

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix 'S30X' corresponds to the 3.0V fixed output variant with the ERR pin configuration. Check datasheet revisions for any updates regarding RoHS compliance or environmental declarations prior to finalizing procurement specifications.

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

Select this component for designs requiring a fixed 3V rail with moderate current demands up to 200mA. Ensure the input voltage remains above the minimum threshold of 2.7V while accounting for dropout variations under load. Verify that the application benefits from the open-drain error flag diagnostic feature for monitoring supply integrity in portable systems.

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

The FAN2505S30X belongs to the FAN2504/FAN2505 family of micropower LDO regulators. While the FAN2504 series offers adjustable voltage or bypass options on Pin 4, the FAN2505 series specifically designates Pin 4 as an Error Flag output. This family serves as a cost-effective alternative to older BiCMOS designs, offering improved performance in compact surface-mount packages for portable electronics.

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

Public confirmed substitute part numbers include MIC5255-3.0YD5-TR and MIC5255-3.0YM5-TR from Microchip Technology.