LT1371CR#PBF

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LT1371CR#PBF – DC DC Switching Regulators

The LT1371CR#PBF from Linear Technology is a monolithic switching regulator with leading-edge technology and versatility. It offers a simple, efficient, and cost-effective way to simplify designs. The device is suitable for a wide range of applications, including portable equipment, telecoms, power management, and industrial systems.

Application field of LT1371CR#PBF

The LT1371CR#PBF switching regulator provides a flexible and powerful solution for a wide range of applications. For example, it can be used in battery-powered applications, including laptop computers, mobile phones, tablets, and other handheld devices. It also provides an excellent, low noise power supply for audio systems, and is suitable for powering a wide range of portable consumer electronics. This device can also be used in various industrial, test and measurement, and instrumentation systems, where it can provide a high efficiency and low noise solution.

Working principle of the LT1371CR#PBF

The LT1371CR#PBF switching regulator is optimized for high efficiency, low noise operation over a wide range of operating conditions. The basic operation of this device can be broken down into four main stages. During the first stage, the IC switches on the output power MOSFET, and charges an external storage capacitor with current. During the second stage, the integrated power MOSFET is turned off, and the voltage on the storage capacitor is regulated against a reference voltage, providing a regulated voltage output. During the third stage, the output is lowered to a low quiescent current stand-by mode, with only the leakage current of the internal MOSFETs, enabling excellent power efficiency for portable applications. Lastly, the internal logic goes into a short low current sleep mode during the absence of an input signal such as too low or too high output voltage, thermal protection or open loop voltage protection.

Benefits of LT1371CR#PBF

The LT1371CR#PBF switching regulator offers numerous benefits for portable systems and other applications. It operates over a wide range of input and output voltage conditions, with a maximum output current of 2A. Its integrated 45V MOSFET has a lower power semiconductor gate driving voltage, allowing it to be switched quickly in order to achieve high efficiency operation. Low noise operation is also possible, thanks to the device’s high-frequency synchronous rectification and fast transient response. Furthermore, it has output voltage regulation that is achieved without the need of an output voltage divider, allowing for efficient operation and reduced system cost. Finally, the LT1371CR#PBF is offered in a thermally enhanced, low profile 3mm x 3mm QFN package, providing a space saving solution for high density portable systems.

In conclusion, the LT1371CR#PBF from Linear Technology is a versatile and efficient DC DC switching regulator. It is suitable for a wide range of applications, including mobile phones, laptops, tablets, audio systems, and other portable electronics. It offers high efficiency operation, low noise operation, fast transient response, and a low power semiconductor gate driving voltage, resulting in an overall highly-effective and cost-efficient solution.

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