Microchip Technology

MCP1811AT-012/TT  

Linear & Switching Voltage Regulators

MCP1811AT-012/TT Description

The MCP1811AT-012/TT is a fixed-output linear regulator designed by Microchip Technology, offering a robust and efficient solution for power management applications. This regulator is part of the Power Management Integrated Circuits (PMIC) category and is housed in a compact SOT23-3 package, making it suitable for space-constrained designs. The MCP1811AT-012/TT provides a stable 1.2V output voltage with a maximum output current of 150mA, ensuring reliable power delivery to sensitive electronic components.

MCP1811AT-012/TT Features

• Output Type: Fixed, providing a stable 1.2V output voltage.
• Input Voltage Range: Capable of handling input voltages up to 5.5V, making it versatile for a wide range of power sources.
• Output Current: Delivers up to 150mA, sufficient for powering various low-power devices.
• Low Dropout Voltage: A maximum dropout voltage of 0.6V at 150mA ensures high efficiency even at low input-to-output voltage differentials.
• Low Quiescent Current: With a quiescent current of only 0.5 µA, the MCP1811AT-012/TT minimizes power consumption in standby mode.
• Enable Control Feature: The enable pin allows for dynamic control of the regulator's operation, enhancing flexibility in power management.
• Over-Current Protection: Built-in protection features safeguard the regulator and connected components from over-current conditions.
• High Power Supply Rejection Ratio (PSRR): A PSRR of 50dB at 1kHz ensures minimal noise and ripple on the output voltage, providing clean power to sensitive circuits.
• Compliance and Packaging: The MCP1811AT-012/TT is REACH unaffected and RoHS3 compliant, meeting stringent environmental standards. It is available in a tape and reel (TR) package, facilitating automated assembly processes.

MCP1811AT-012/TT Applications

The MCP1811AT-012/TT is ideal for a variety of applications where a stable and efficient power supply is critical. Its low dropout voltage and low quiescent current make it particularly suitable for battery-powered devices, where maximizing battery life is essential. The regulator's compact size and surface-mount design allow for seamless integration into small form-factor electronics. Some specific use cases include:

• Portable Electronics: Ideal for powering low-power components in smartphones, tablets, and wearable devices.
• IoT Devices: Provides reliable power management for Internet of Things devices, ensuring stable operation in various environmental conditions.
• Medical Devices: Suitable for powering sensitive medical equipment where low noise and high reliability are paramount.
• Industrial Control Systems: Can be used in industrial applications where compact and efficient power solutions are required.

Conclusion of MCP1811AT-012/TT

The MCP1811AT-012/TT from Microchip Technology is a highly efficient and reliable fixed-output linear regulator, offering a comprehensive set of features tailored for modern power management needs. Its low dropout voltage, low quiescent current, and high PSRR make it a standout choice for applications requiring stable and efficient power delivery. Despite being marked as obsolete, the MCP1811AT-012/TT remains a viable option for designers seeking a compact, high-performance regulator. Its compliance with environmental standards and availability in a surface-mount package further enhance its appeal for a wide range of applications.

MCP1811AT-012/TT Documents

Download datasheets and manufacturer documentation for MCP1811AT-012/TT

Datasheets :

MCP1811-12A/B      

PCN Obsolescence/ EOL :

MCP181xxx 08/Jul/2021      

HTML Datasheet :

MCP1811-12A/B      

PCN Design/Specification :

MCP1811A/11B/12A/12B 24/Apr/2020      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH