Microchip Technology

MCP1812AT-028/TT  

Linear & Switching Voltage Regulators

MCP1812AT-028/TT Description

The MCP1812AT-028/TT is a fixed output linear voltage regulator designed by Microchip Technology, offering a robust solution for power management applications. This regulator is part of the Power Management (PMIC) category and is housed in a compact SOT23-3 package, making it suitable for space-constrained designs. Despite its small form factor, the MCP1812AT-028/TT delivers a maximum output current of 300mA at a fixed output voltage of 2.8V, ensuring stable power delivery to sensitive electronic components.

MCP1812AT-028/TT Features

• Output Type: Fixed, ensuring consistent voltage output without the need for external components to set the output voltage.
• Input Voltage Range: Up to 5.5V, providing flexibility in input power sources.
• Output Current: Capable of delivering up to 300mA, making it suitable for a wide range of low-power applications.
• Low Dropout Voltage: A maximum dropout voltage of 0.6V at 300mA ensures high efficiency, even at low input-to-output voltage differences.
• Low Quiescent Current: With a quiescent current of only 0.5 µA, the MCP1812AT-028/TT minimizes power consumption in standby or low-load conditions.
• High PSRR: A Power Supply Rejection Ratio (PSRR) of 50dB at 1kHz helps in filtering out noise from the input power supply, ensuring clean output voltage.
• Enable Control Feature: The enable pin allows for dynamic control of the regulator's operation, facilitating power-saving modes and system-level power management.
• Over Current Protection: Built-in overcurrent protection safeguards the regulator and connected components from damage due to excessive current.
• Surface Mount Packaging: The SOT23-3 package is ideal for surface mount technology, enabling high-density PCB layouts.
• Compliance and Reliability: The MCP1812AT-028/TT is REACH unaffected and RoHS3 compliant, ensuring environmental safety and regulatory compliance. It also has a moisture sensitivity level (MSL) of 1, making it suitable for various manufacturing environments.

MCP1812AT-028/TT Applications

The MCP1812AT-028/TT is well-suited for a variety of applications where low power consumption, high efficiency, and reliable performance are critical. Some specific use cases include:

• Battery-Powered Devices: Ideal for portable electronics such as smartphones, tablets, and wearable devices where battery life and compact design are paramount.
• Consumer Electronics: Suitable for applications like digital cameras, media players, and other low-power consumer devices that require stable power supply.
• Industrial Control Systems: Provides reliable power management for sensors, microcontrollers, and other low-power components in industrial environments.
• Medical Devices: Ensures stable power delivery to critical components in medical devices, where reliability and low power consumption are essential.

Conclusion of MCP1812AT-028/TT

The MCP1812AT-028/TT is a versatile and efficient linear voltage regulator that offers a combination of high performance and low power consumption. Its unique features, such as low dropout voltage, low quiescent current, and enable control, provide significant advantages over similar models. The regulator's compact size and surface mount packaging make it an excellent choice for modern, space-constrained designs. Despite its obsolete status, the MCP1812AT-028/TT remains a reliable option for applications requiring a fixed 2.8V output and up to 300mA of current. Its compliance with environmental standards and robust protection features further enhance its suitability for a wide range of electronic applications.

MCP1812AT-028/TT Documents

Download datasheets and manufacturer documentation for MCP1812AT-028/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