LTC4361CDC-2#TRPBF

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PMIC (Power Management Integrated Circuits) are specialized integrated circuits designed to manage and control electrical power in electronic systems. They are often used to increase efficiency while preserving power, provide power to various components, and reduce the number of external components required. The LTC4361CDC-2#TRPBF is a PMIC with an integrated switching boost regulator specially designed for lithium-ion battery applications. It has a wide input range, low quiescent current, and low dropout voltage, making it ideal for portable, mobile, and long-lasting applications.

The LTC4361CDC-2#TRPBF is based on a fixed-frequency, current-mode, step-down topology and is designed to handle an input voltage range between 2.7V and 4.2V. Its output voltage is adjustable from 1.8V to 24V and has a maximum switching frequency of 600kHz. It can provide an output current up to 2A and has a low quiescent current of only 8.3µA when the device is in shutdown mode. The device also has a host of protection features such as output overvoltage protection, output overcurrent protection, input overvoltage protection, low input voltage protection, thermal shutdown, and external soft-start capability.

The LTC4361CDC-2#TRPBF utilises a high-side NMOS switch, a low-side NMOS switch, and free-wheeling diode for its power-conversion function. The gate driver for the upper switch is controlled by a control signal from the IC, while the gate driver to the lower switch is driven by the adaptive gate driver signal. The adaptive gate driver monitors the output current, compensates linearity of the output current and adjusts the gate driver for optimal performance. During each cycle, the high-side switch turns on first and provides the current to the output. When the high-side switch is off, the low-side switch is on and the diode provides the current path to the output.

The LTC4361CDC-2#TRPBF is ideal for applications such as powering LEDs, providing auxiliary power in battery-backed systems, and providing regulated charge or output source in battery management systems. It can be used in small point-of-load (POL) DC/DC converters, where a single inductor converter provides a high switching frequency and a wide output voltage range. It can also be used in mobile phones and other portable devices, where it provides on-board protection for a low voltage Li-ion battery. By providing an adjustable output, it can be used to power a wide range of devices from MP3 players and wireless handsets to laptops and cell phones.

The LTC4361CDC-2#TRPBF is a versatile PMIC with a wide input voltage range and low quiescent current for portable and long-lasting battery applications. Its integrated switching boost regulator and protection features make it an ideal solution for powering LEDs, providing auxiliary power in battery-backed systems, and providing regulated charge or output source in battery management systems. It can be used in a variety of applications to provide reliable and efficient power management.

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