FAN2509S25X

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

The FAN2509S25X is a fixed-output linear voltage regulator manufactured by Fairchild Semiconductor. It provides a fixed output voltage of 2.5 V with a maximum continuous output current of 50 mA. The device operates within an input voltage range from 2.7 V to 6.5 V and features a low dropout voltage of 75 mV at full load. It utilizes CMOS technology for micropower performance, offering a typical quiescent current of 50 µA. The component is housed in a SOT-23-5 surface-mount package and supports operation across a temperature range of -40°C to +125°C.

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

• Utilizes CMOS technology for micropower efficiency
• Provides fixed positive output voltage regulation
• Features low dropout voltage characteristics
• Includes thermal protection mechanisms

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

• GSM cellular handsets
• TDMA cellular handsets
• Laptop computers
• Notebook portable computers
• Other portable electronic devices

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

Verify the specific manufacturer source when procuring this component, as it may be sourced from Fairchild Semiconductor or ON Semiconductor following industry consolidation. Confirm that the part number suffix matches the required output voltage and packaging configuration. Ensure compliance with RoHS standards if applicable to the target application requirements.

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

Select the FAN2509S25X for applications requiring a stable 2.5 V rail with moderate current demands up to 50 mA. Consider its low quiescent current for battery-powered systems where power efficiency is critical. Evaluate the input voltage range to ensure it remains above the minimum requirement while staying within the maximum limit during all operating conditions.

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

This component belongs to the FAN2508/09 family of micropower low-dropout voltage regulators. These devices are designed to offer cost-effective performance for portable electronics. The series leverages CMOS technology to achieve low power consumption while maintaining regulation accuracy suitable for sensitive digital logic circuits in mobile and computing applications.