onsemi

FAN2509S285X

FAN2509S285X Description

The FAN2509S285X is a linear voltage regulator designed by onsemi, offering a fixed output voltage of 2.85V and a maximum output current of 50mA. This device is housed in a compact SOT23-5 package, making it suitable for surface mount applications. Despite its small form factor, the FAN2509S285X provides robust performance with a maximum input voltage of 6.5V and a low dropout voltage of 0.075V at 50mA. The regulator features an enable control function, allowing for dynamic power management, and includes over-temperature protection to ensure reliable operation under varying conditions. With a quiescent current of only 50 µA and a power supply rejection ratio (PSRR) of 43dB at 120Hz, the FAN2509S285X is optimized for low-power, high-efficiency applications. Although the product is now obsolete, its technical specifications and performance characteristics make it a notable choice for specific legacy systems.

FAN2509S285X Features

• Output Type: Fixed
• Voltage - Input (Max): 6.5V
• Current - Output: 50mA
• Number of Regulators: 1
• Output Configuration: Positive
• Voltage - Output (Min/Fixed): 2.85V
• Voltage Dropout (Max): 0.075V @ 50mA
• Current - Quiescent (Iq): 50 µA
• PSRR: 43dB (120Hz)
• Control Features: Enable
• Protection Features: Over Temperature
• Package: Tape & Reel (TR)
• Mounting Type: Surface Mount
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• ECCN: EAR99
• HTSUS: 8542.39.0001
• REACH Status: REACH Unaffected

FAN2809S285X Applications

The FAN2509S285X is ideal for applications requiring a stable 2.85V supply with low power consumption. Its low dropout voltage and high PSRR make it suitable for battery-powered devices, portable electronics, and systems where input voltage fluctuations need to be minimized. The enable feature allows for power-saving modes, making it a good fit for applications that require dynamic power management. The compact SOT23-5 package is advantageous for space-constrained designs, such as wearable devices, IoT sensors, and small form factor embedded systems. The over-temperature protection ensures reliable operation in environments with varying thermal conditions, enhancing the overall robustness of the system.

Conclusion of FAN2509S285X

The FAN2509S285X, despite being obsolete, remains a reliable choice for applications that require a precise 2.85V output with low power consumption and high efficiency. Its low dropout voltage and high PSRR make it suitable for sensitive electronic circuits, while the enable control feature offers flexibility in power management. The compact SOT23-5 package and surface mount design make it easy to integrate into modern, space-constrained designs. For legacy systems or specific applications where these features are critical, the FAN2509S285X continues to be a valuable component in the electronics industry.