FAN25800AUCF27X

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

The FAN25800AUCF27X is a linear low-dropout regulator providing a fixed 2.7 V output with a maximum current of 500 mA. It operates within an input voltage range of 2.3 V to 5.5 V and supports an ambient temperature range of -40°C to +85°C. The device features a typical quiescent current of 17 µA, dropout voltage under 70 mV at 250 mA, and integrated protections including thermal shutdown, short-circuit protection, and input under-voltage lockout.

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

• High power supply rejection ratio for noise-sensitive applications
• Low quiescent current with optimized dropout transitions
• Controlled soft-start mechanism to limit inrush current
• Stable operation with small space-saving ceramic capacitors

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

• WiFi Modules
• PDA Handsets
• Smart Phones, Tablets, Portable Devices

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

Verify the exact part number against official manufacturer databases due to historical naming conventions involving underscores versus dashes during corporate integration. Confirm that the specific suffix corresponds to the required output voltage and current rating. Ensure compliance with RoHS standards and check for any updates regarding recommended new designs or lifecycle status on the manufacturer's website before finalizing procurement.

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

Select this component when a stable 2.7 V rail is required with up to 500 mA load capability. It is suitable for post-regulation stages following DC-DC converters to reduce ripple. Ensure input voltage remains above the UVLO threshold and verify that external capacitor values fall within the specified effective capacitance range for loop stability.

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

This LDO belongs to the FAN25800 family, designed for portable electronics requiring high PSRR and low noise. It utilizes a 4-bump WLCSP package measuring 0.65 mm by 0.65 mm. The device integrates enable control for shutdown modes, reducing supply current significantly when inactive.

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

Consult official documentation for direct substitutes. Other trim options within the same series include variants with different fixed output voltages such as 2.8 V or 3.3 V.