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MCP1811AT-025/OT

MCP1811AT-025/OT Description

The MCP1811AT-025/OT is a linear voltage regulator from Microchip Technology, designed to provide a stable 2.5V output with a maximum output current of 150mA. This regulator features a fixed output voltage, making it suitable for applications requiring a consistent power supply. The device operates with an input voltage range up to 5.5V and offers a low dropout voltage of 0.6V at 150mA, ensuring efficient power conversion even at low input voltages. With a quiescent current of only 0.5 µA and a supply current of 110 µA, the MCP1811AT-025/OT is optimized for low-power applications. The regulator includes an enable control feature and over-current protection, enhancing its versatility and reliability. The device is packaged in a surface-mount SOT23-5 package, making it suitable for compact designs. Despite its obsolescence, the MCP1811AT-025/OT remains a reliable choice for specific applications requiring its unique features.

MCP1811AT-025/OT Features

• Fixed Output Voltage: Provides a stable 2.5V output, ideal for applications requiring a precise voltage level.
• Low Dropout Voltage: With a maximum dropout voltage of 0.6V at 150mA, the regulator maintains efficiency even at low input voltages.
• Low Quiescent Current: Features a quiescent current of 0.5 µA, minimizing power consumption in low-power applications.
• Enable Control: Includes an enable feature, allowing for dynamic control of the regulator's operation.
• Over-Current Protection: Ensures reliability and prevents damage in case of over-current conditions.
• Low Supply Current: Consumes a maximum of 110 µA, making it suitable for battery-powered devices.
• Surface-Mount Package: The SOT23-5 package is ideal for compact designs and surface-mount assembly processes.
• High PSRR: Offers a power supply rejection ratio of 50dB at 1kHz, ensuring high performance in noisy environments.

MCP1811AT-025/OT Applications

The MCP1811AT-025/OT is well-suited for a variety of applications where a stable and efficient power supply is crucial. Its low dropout voltage and low quiescent current make it ideal for battery-powered devices, such as portable electronics, where power efficiency is paramount. The enable control feature allows for dynamic power management, making it suitable for applications that require power-saving modes. The regulator's over-current protection ensures reliability in applications where current spikes may occur, such as in motor control circuits or LED drivers. Additionally, its high PSRR makes it suitable for applications in noisy environments, such as automotive or industrial electronics, where power supply stability is critical.

Conclusion of MCP1811AT-025/OT

The MCP1811AT-025/OT is a robust linear voltage regulator that offers a unique combination of low dropout voltage, low quiescent current, and enable control features. Despite being marked as obsolete, its technical specifications and performance benefits make it a reliable choice for specific applications requiring a stable 2.5V power supply. The device's low power consumption and over-current protection features enhance its versatility, making it suitable for a wide range of applications, from portable electronics to industrial systems. For designers seeking a compact, efficient, and reliable power solution, the MCP1811AT-025/OT remains a viable option.