LT1372CS8#TRPBF

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

LT1372CS8#TRPBF Application Field And Working Principle

LT1372CS8#TRPBF is an integrated high-efficiency DC-DC converter IC from Linear Technology Corporation, which is categorized as PMIC – Voltage Regulators – DC DC Switching Regulators. It includes an efficient step-up and step-down conversion solution with 3A of output current, over-temperature protection, and adjustable output voltage up to 72V. This application note will discuss the LT1372CS8#TRPBF’s application field and its working principle.

Application Field

The LT1372CS8#TRPBF IC is mainly used in cell phones, smartphones, laptop computers, portable medical equipment, electric vehicles, and other mobile applications where long battery life is important. It is ideal for portable applications powered by a single-cell Li-ion battery that require a higher input voltage than what is available directly from the battery source. The IC’s high-efficiency level allows it to run with nearly no heat production, even under heavy-loading conditions. It also features a power-saving automatic shutdown function.

Working Principle

The LT1372CS8#TRPBF has a basic buck-boost high-efficiency converter integrated circuit (BI-BST-HEC) block diagram. The output voltage is programmable from 1V to 72V, with a maximum output current of 3A. The device has a low input/output voltage ratio of 0.7:1 and a wide operating input voltage range of 1.5V to 10V. Its circuitry comprises an internal N-channel MOSFET switch, input current limit circuit and voltage feedback control loop.

The BI-BST-HEC block diagram works by having the current limit circuit, voltage feedback control loop and MOSFET Switch serving as a switch, opening and closing at different times and controlling the flow of power. The internal current limit circuit senses the amount of current flowing through and if it exceeds the preset limit, it shuts off the MOSFET switch before the power is completely dissipated. The voltage feedback control loop senses and controls the operating voltage, based on the input and output, to maintain the desired output voltage.

The BI-BST-HEC converter uses a unique control scheme that allows output voltage regulation both during step-up and step-down mode. It is also designed to provide adjustable, two-mode conversion with variable turnon delay for superior surge protection, making it very reliable and durable, suitable for different applications.

In conclusion, the LT1372CS8#TRPBF is an integrated high-efficiency DC-DC converter IC from Linear Technology Corporation, which is categorized as PMIC – Voltage Regulators – DC DC Switching Regulators. It includes an efficient step-up and step-down conversion solution with 3A of output current, over-temperature protection, and adjustable output voltage up to 72V. It is mainly used in cell phones, smartphones, laptop computers, portable medical equipment, electric vehicles, and other mobile applications where long battery life is important, and has been designed to provide adjustable, two-mode conversion with variable turnon delay for superior surge protection. The external components are minimal which makes it suitable for handheld and portable consumer applications. Its basic buck-boost high-efficiency converter integrated circuit block diagram is comprised of a current limit circuit, voltage feedback control loop, and MOSFET switch, that provides output voltage regulation both during step-up and step-down mode.

The specific data is subject to PDF, and the above content is for reference