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AP2121N-1.5TRE1

AP2121N-1.5TRE1 Description

The AP2121N-1.5TRE1 is a linear voltage regulator designed by Diodes Incorporated, offering a fixed output voltage of 1.5V with a maximum output current of 200mA. This regulator is housed in a compact SOT23-3 package, making it ideal for space-constrained applications. The device features a maximum input voltage of 6V and a dropout voltage of 0.6V at 200mA, ensuring efficient operation even at low input-to-output voltage differentials. The regulator also includes over-current protection to safeguard against potential damage from excessive current flow. Despite being marked as obsolete, the AP2121N-1.5TRE1 remains a reliable choice for applications requiring a stable and efficient power supply.

AP2121N-1.5TRE1 Features

• Fixed Output Voltage: The regulator provides a stable output voltage of 1.5V, ensuring consistent power supply to connected devices.
• High Efficiency: With a dropout voltage of 0.6V at 200mA, the AP2121N-1.5TRE1 operates efficiently, minimizing power loss and heat generation.
• Low Quiescent Current: The regulator features a low quiescent current of 50 µA, which is beneficial for battery-powered applications where power consumption needs to be minimized.
• Over-Current Protection: This feature protects the regulator and connected devices from damage due to excessive current, enhancing reliability and longevity.
• High PSRR: The regulator boasts a power supply rejection ratio (PSRR) of 70dB at 1kHz, effectively filtering out noise and ripple from the input voltage, ensuring a clean output voltage.
• Moisture Sensitivity Level: The MSL rating of 3 (168 hours) ensures the device can withstand moisture exposure during manufacturing processes, making it suitable for a wide range of industrial applications.
• RoHS Compliance: The AP2121N-1.5TRE1 meets RoHS compliance standards, ensuring it is free from hazardous substances and suitable for environmentally conscious applications.
• Surface Mount Technology: The surface-mount package type facilitates easy integration into modern PCB designs, enhancing manufacturing efficiency and reliability.

AP2121N-1.5TRE1 Applications

The AP2121N-1.5TRE1 is well-suited for a variety of applications where a stable and efficient power supply is required. Some specific use cases include:

• Battery-Powered Devices: The low quiescent current and high efficiency make this regulator ideal for portable electronics and battery-powered applications where power conservation is crucial.
• Consumer Electronics: The compact size and high PSRR ensure that the regulator can be integrated into small form-factor consumer devices without compromising performance.
• Industrial Control Systems: The over-current protection and moisture sensitivity level make the AP2121N-1.5TRE1 suitable for industrial environments where reliability and durability are paramount.
• Telecommunications: The regulator's ability to filter out noise and ripple makes it suitable for sensitive telecommunication equipment where signal integrity is essential.

Conclusion of AP2121N-1.5TRE1

The AP2121N-1.5TRE1 is a robust and efficient linear voltage regulator that offers a fixed 1.5V output with a maximum current of 200mA. Its low dropout voltage, high PSRR, and over-current protection make it a reliable choice for a variety of applications, from battery-powered devices to industrial control systems. Despite being marked as obsolete, the AP2121N-1.5TRE1 remains a viable option for engineers seeking a compact, efficient, and reliable power supply solution.