LT8616EUDE#PBF

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LT8616EUDE#PBF Application Field and Working Principle

LT8616EUDE#PBF is a high performance DC-DC switching regulator designed for various applications such as portable and handheld devices. It is part of the PMIC (Power Management Integrated Circuit) portfolio and can operate in Voltage Regulators and DC-DC Switching Regulators categories.

The LT8616EUDE#PBF consists of a high-performance converter controller, two power MOSFET devices and two bias voltage regulator power ICs in one package. It is able to offer a wide range of output currents with low ripple and high efficiency. It provide high accuracy over temperature, light load and line variations thanks to its Advanced Trans-conductance Error Amplifier (ATEA) feedback loop and an improved hysteretic current mode controller. Additionally, the design also offers protection features including over-temperature protection and under-voltage lockout protection.

The LT8616EUDE#PBF can be used in different types of applications. Common applications include mobile phones, tablets, handheld computing devices, audio amplifiers, and entertainment systems. For the sampling area, the LT8616EUDE#PBF is most suitable for low noise and low power supply applications. It is capable of providing power supplies of 300mA to 4A outputs with high efficiency.

The working principle of the LT8616EUDE#PBF is based on a hysteretic current controlled buck converter. The input voltage is applied to the VIN pin, and is then filtered by a resistor and capacitor. The input to the internal converter is regulated by the ON/OFF signal via the ENABLE pin. It provides negative voltage feedback through the FB pin to the internal ATEA loop. This determines the switching frequency of the internal converter. The output of the converter is controlled by the hysteretic current control loop, which provides a stable output voltage during overload and light load conditions. The regulated output voltage is then sensed by the FB pin and fed back to the converter.

The LT8616EUDE#PBF offers several protection features. Its internal circuitry is designed to prevent over-voltage situations during switch-on and auto synchronisation. The ENABLE pin can be used to disable the IC and restart the IC upon power up and monitor the output voltage. This offers an efficient way to monitor and protect the IC from over-voltage, under-voltage, and over-temperature conditions. The IC also includes over-current protection and soft-start circuitry to improve the startup conditions of the regulator.

Overall, the LT8616EUDE#PBF is an ideal solution for providing reliable, efficient and low noise DC-DC switching regulators for different types of applications. It provides a wide range of output currents, protection features and a hysteretic current control loop that ensures stable operation during overload and light load conditions. Additionally, its design also offers protection features such as over-voltage and under-voltage lockout, over-temperature protection and soft-start circuitry to ensure safe and reliable performance. With its convenient and versatile features, the LT8616EUDE#PBF is perfect for providing power supplies in portable, handheld and other applications.

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