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MCP1812AT-018/HCA

MCP1812AT-018/HCA Description

The MCP1812AT-018/HCA is a linear voltage regulator from Microchip Technology, designed to provide a stable and reliable power supply for a variety of electronic applications. This regulator features a fixed output voltage of 1.8V, making it suitable for applications requiring a precise and consistent power source. With a maximum input voltage of 5.5V and an output current capability of 300mA, the MCP1812AT-018/HCA is well-suited for low-power systems. The device is housed in a surface-mount 4UDFN package, which is ideal for compact designs and high-density boards.

The MCP1812AT-018/HCA boasts a low quiescent current of 0.5 µA and a maximum supply current of 220 µA, ensuring efficient power usage and minimal energy loss. This regulator also features a low dropout voltage of 0.6V at 300mA, which allows it to maintain regulation even when the input voltage is close to the output voltage. Additionally, the regulator offers a power supply rejection ratio (PSRR) of 50dB at 1kHz, providing excellent noise filtering and stability.

MCP1812AT-018/HCA Features

• Fixed Output Voltage: 1.8V, ensuring a stable power supply for sensitive electronics.
• Input Voltage Range: Up to 5.5V, providing flexibility in power source selection.
• Output Current: 300mA, suitable for a wide range of low-power applications.
• Low Dropout Voltage: 0.6V at 300mA, allowing operation with minimal voltage headroom.
• Low Quiescent Current: 0.5 µA, minimizing power consumption in standby mode.
• Enable Control Feature: Allows for dynamic control of the regulator's operation.
• Over-Current Protection: Ensures safety and reliability by protecting against excessive current draw.
• RoHS3 Compliant: Meets environmental standards for restricted hazardous substances.
• Moisture Sensitivity Level: MSL 1 (Unlimited), suitable for various manufacturing environments.
• Packaging: Tape & Reel (TR), facilitating automated assembly processes.

MCP1812AT-018/HCA Applications

The MCP1812AT-018/HCA is ideal for a variety of applications where a stable and efficient power supply is required. Its low dropout voltage and low quiescent current make it particularly suitable for battery-powered devices and portable electronics. Some specific use cases include:

• Portable Devices: Smartphones, tablets, and other handheld electronics that require efficient power management.
• IoT Devices: Sensors and actuators in Internet of Things (IoT) applications, where low power consumption and reliability are critical.
• Wearable Technology: Smartwatches and fitness trackers that need a compact and efficient power solution.
• Medical Devices: Portable medical devices and diagnostic tools that require stable power and low noise.
• Industrial Control Systems: Low-power sensors and controllers in industrial environments.

Conclusion of MCP1812AT-018/HCA

The MCP1812AT-018/HCA is a versatile linear voltage regulator that offers a combination of high efficiency, low power consumption, and robust performance. Its low dropout voltage and low quiescent current make it an excellent choice for applications where power efficiency and reliability are paramount. Despite being marked as obsolete, the MCP1812AT-018/HCA remains a reliable option for designers looking for a compact, efficient, and stable power supply solution.