FAN2505S25X

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

The FAN2505S25X is a fixed-output low-dropout linear regulator from the FAN2505 family, manufactured by Fairchild Semiconductor (now onsemi). It provides a fixed 2.5V output with a maximum continuous current of 200mA. The device operates within an input voltage range of 2.7V to 6.5V and utilizes CMOS technology for micropower efficiency. Key electrical parameters include a typical dropout voltage of 2.5mV at 100µA and a line regulation of 0.3%/V. It features a load regulation of 2% and maintains voltage accuracy within 2%. The component supports surface-mount installation in a SOT-23-5 package and functions reliably across an operating temperature range of -40°C to +125°C.

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

• Utilizes CMOS technology to deliver micropower performance suitable for portable applications.
• Provides stable fixed voltage regulation with minimal dropout characteristics.
• Includes integrated thermal protection for enhanced operational safety.

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

• GSM cellular handsets
• TDMA cellular phones
• Laptop and notebook computers

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

Verify the specific suffix 'S25X' against official datasheets to confirm the 2.5V fixed output variant. Confirm manufacturer lineage as Fairchild Semiconductor or onsemi. Check for obsolescence status as many FAN2505 variants are discontinued. Ensure the SOT-23-5 package matches design requirements. Validate RoHS compliance if required by project specifications.

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

Select this component when a fixed 2.5V rail is required with up to 200mA load capability. Consider the low dropout voltage for battery-powered systems where input voltage may approach the output level. Verify that the SOT-23-5 footprint fits the PCB layout. Compare static current consumption if ultra-low power standby modes are critical for the application.

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

The FAN2505 series comprises micropower LDO regulators designed for cost-effective performance in portable electronics. The family includes various fixed output voltages such as 2.5V, 2.7V, 3.0V, and 3.3V. These devices share common architectural features including CMOS construction and thermal shutdown. The FAN2505S25X specifically targets the 2.5V requirement within this lineup.

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

Publicly confirmed substitute part numbers for the FAN2505S25X were not found in the provided source material. Users should consult official manufacturer documentation for current equivalent recommendations or pin-compatible alternatives.