FAN2504S285X

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

The FAN2504S285X is a fixed-output 2.85V CMOS LDO regulator in a SOT-23-5 package. It delivers up to 200mA output current with a maximum dropout voltage of 200mV at full load. The device features ultra-low power consumption, drawing only 75µA ground current. Pin 4 serves as a bypass pin for noise reduction. It includes thermal limiting protection and an enable/shutdown control function that reduces quiescent current to less than 1µA.

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

• Utilizes CMOS technology for low power consumption and high efficiency.
• Features extremely low dropout voltage under heavy loads.
• Includes onboard thermal limiting protection against overload conditions.
• Offers user-controllable shutdown capability via the Enable pin.

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

• Cellular phones and accessories
• Portable cameras and video recorders
• Laptop, notebook and palmtop computers

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

Verify the specific suffix '285X' confirms the 2.85V fixed output and tape-and-reel packaging. Confirm the manufacturer origin, as Fairchild Semiconductor products are now managed by ON Semiconductor. Ensure the component meets RoHS compliance requirements for your assembly process.

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

Select this part when a stable 2.85V rail is required for portable electronics. It is suitable for battery-powered designs due to its low ground current. Consider the SOT-23-5 footprint constraints and ensure adequate PCB copper area for thermal dissipation during high-load operation.

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

This component belongs to the FAN2504/05 family of micropower low-dropout voltage regulators. These devices are designed for cost-effective performance in compact, battery-operated applications. The family utilizes CMOS technology to provide improved stability and lower power consumption compared to older BiCMOS designs.

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

FAN2504S28X (2.8V Fixed Output)

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

What is the function of Pin 4 on the FAN2504S285X?

Pin 4 is a Bypass pin. Connecting a capacitor between this pin and ground optimizes noise performance.

How does the device handle thermal overload?

Onboard thermal protection shuts down the output if the die temperature exceeds 150°C. The output re-enables automatically once the temperature drops below this limit.