MIC1344YFT-TR

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PMIC\'s are integrated circuits designed to manage and control the system power supply function in a device. Generally, they combine power hardware with digital and analog circuitry, enabling a variety of power management functions, such as monitoring, sequencing, sequencing timing, and current limiting. The MIC1344YFT-TR is a buck (step-down) PMIC from Microchip Technology. It is an affordable, low-cost 3A buck regulator specifically designed for entry-level power management and endurance applications.

The MIC1344YFT-TR is a non-synchronous, constant-on-time buck regulator. Its ideal operating range is from 2.3V to 5.5V input and output voltages from 0.5V to 2.7V. This simplifies the design process, as the device features a user-adjustable current accuracy and a wide range of protection features. The integrated power MOSFETs and low-voltage supply enable a low standby power draw while still achieving high performance and efficiency.

The MIC1344YFT-TR\'s critical feature is its integrated dual ideal diodes. When compared to a regular diode, an ideal diode provides a better current delivery without the forward voltage drop. This increases the efficiency by bypassing the regular diode\'s forward voltage drop and providing a better current delivery when the voltage is rising or falling. As a result, the MIC1344YFT-TR is an ideal choice for entry-level power designs with lower efficiency requirements.

The MIC1344YFT-TR is also equipped with thermal protection, under-voltage lockout, and over-current protection and disable features, making it a safe, reliable, and robust power management solution. The MIC1344YFT-TR operates in a fixed frequency switching mode, with a maximum switching frequency of 2.2MHz and a typical switching frequency of 1.25MHz.

The MIC1344YFT-TR is ideal for embedded and battery-powered applications, especially for wearable and IoT devices that require very low quiescent power. It is designed to provide reliable power to devices such as wearables, medical instruments, specialty lighting, and more.

In summary, the MIC1344YFT-TR is a low-cost step-down PMIC that offers dual ideal diodes, wide range of protection features, and current accuracy. It is ideal for entry-level applications that require very low quiescent power.

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