Microchip Technology

MCP1811AT-040/HCA  

Linear & Switching Voltage Regulators

MCP1811AT-040/HCA Description

The MCP1811AT-040/HCA is a linear voltage regulator designed by Microchip Technology, offering a fixed output voltage of 4V with a maximum input voltage of 5.5V. This regulator is capable of delivering up to 150mA of output current, making it suitable for a variety of low-power applications. The device features a low dropout voltage of 0.6V at 150mA, which ensures efficient operation even with minimal input-to-output voltage differences. The regulator is housed in a compact 4UDFN package, making it ideal for space-constrained designs.

MCP1811AT-040/HCA Features

• Output Type: Fixed at 4V, ensuring stable power supply for sensitive electronics.
• Input Voltage Range: Up to 5.5V, providing flexibility in power source selection.
• Output Current: Capable of delivering up to 150mA, suitable for driving small motors, sensors, and microcontrollers.
• Low Dropout Voltage: Maximum dropout of 0.6V at 150mA, enhancing efficiency in low-voltage applications.
• Low Quiescent Current: Only 0.5 µA, minimizing power consumption in standby mode.
• Enable Control Feature: Allows for dynamic control of the regulator's operation, enhancing power management capabilities.
• Protection Features: Overcurrent, overtemperature, and short-circuit protection ensure robustness and reliability.
• Mounting Type: Surface mount, suitable for automated assembly processes and compact PCB designs.
• Compliance: ROHS3 compliant, ensuring environmental safety and regulatory adherence.
• Moisture Sensitivity Level: MSL 1 (Unlimited), suitable for storage and handling in various environments.

MCP1811AT-040/HCA Applications

The MCP1811AT-040/HCA is ideal for applications requiring a stable and efficient power supply with minimal space requirements. Some specific use cases include:

• Consumer Electronics: Powering small devices such as portable media players, digital cameras, and handheld gaming consoles.
• Industrial Applications: Driving sensors, actuators, and microcontrollers in compact industrial control systems.
• Medical Devices: Providing reliable power to portable medical devices, ensuring consistent performance.
• Automotive Electronics: Suitable for low-power applications within vehicles, such as dashboard displays and infotainment systems.

Conclusion of MCP1811AT-040/HCA

The MCP1811AT-040/HCA is a versatile linear voltage regulator that offers a balance of performance, efficiency, and compact design. Its low dropout voltage, low quiescent current, and robust protection features make it a reliable choice for a wide range of applications. Despite being marked as obsolete, the MCP1811AT-040/HCA remains a valuable component for engineers seeking a dependable power solution in space-constrained designs.

MCP1811AT-040/HCA Documents

Download datasheets and manufacturer documentation for MCP1811AT-040/HCA