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MCP1811BT-018/OT

MCP1811BT-018/OT Description

The MCP1811BT-018/OT is a fixed-output linear regulator designed by Microchip Technology, offering a robust and efficient solution for power management applications. This regulator provides a stable 1.8V output voltage with a maximum output current of 150mA. It features a low dropout voltage of 0.6V at 150mA, ensuring high efficiency even under low input-to-output voltage differentials. The MCP1811BT-018/OT is housed in a compact SOT23-5 package, making it ideal for space-constrained designs.

MCP1811BT-018/OT Features

• Output Type: Fixed at 1.8V, ensuring a stable power supply for sensitive applications.
• Input Voltage Range: Operates within a maximum input voltage of 5.5V, providing flexibility in power source selection.
• Output Current: Capable of delivering up to 150mA, suitable for a wide range of low-power devices.
• Low Dropout Voltage: With a maximum dropout voltage of 0.6V at 150mA, the regulator maintains high efficiency even under low input-to-output voltage conditions.
• Low Quiescent Current: A quiescent current of only 0.5 µA minimizes power consumption during standby, extending battery life in portable applications.
• Enable Control Feature: The enable pin allows for easy control of the regulator's output, providing power-saving options and dynamic power management.
• Over Current Protection: Built-in over current protection ensures reliable operation and protects the regulator from damage due to excessive load currents.
• High PSRR: A power supply rejection ratio (PSRR) of 50dB at 1kHz helps filter out noise and maintain a clean output voltage.
• Compliance and Packaging: The MCP1811BT-018/OT is REACH unaffected and RoHS3 compliant, ensuring environmental safety. It is available in a tape and reel (TR) package, facilitating automated assembly processes.

MCP1811BT-018/OT Applications

The MCP1811BT-018/OT is well-suited for various applications requiring a reliable and efficient power supply. Its low dropout voltage and low quiescent current make it ideal for battery-powered devices where power efficiency is crucial. Some specific use cases include:

• Portable Electronics: Ideal for smartphones, tablets, and other handheld devices where space and power efficiency are paramount.
• Wearable Devices: Suitable for fitness trackers, smartwatches, and other wearables that demand minimal power consumption and small form factors.
• IoT Devices: Perfect for Internet of Things (IoT) devices that require stable power and low power consumption to extend battery life.
• Medical Devices: Applicable in portable medical devices such as glucose meters and portable monitors, where reliability and efficiency are critical.

Conclusion of MCP1811BT-018/OT

The MCP1811BT-018/OT from Microchip Technology stands out as a highly efficient and reliable fixed-output linear regulator. Its low dropout voltage, low quiescent current, and enable control feature make it an excellent choice for applications where power efficiency and space constraints are key considerations. Despite being marked as obsolete, the MCP1811BT-018/OT remains a viable option for designers seeking a proven and cost-effective power management solution. Its compliance with environmental standards and availability in a surface-mount package further enhance its appeal for modern electronics applications.