LTC4370CDE

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LTC4370CDE, belonging to PMIC - OR Controllers, Ideal Diodes family, is a high-performance voltage detector, featuring low power consumption, wide operating voltage range and low-voltage detection accuracy. The device includes an internal reference, OR controller, and a series ideal diode (also called Schottky diode). It provides an ideal voltage OR/diode combination that minimizes power loss and simplifies the design of power conversion systems.

With its internal voltage reference, the LTC4370CDE can be configured to operate from 1.5V to 5.5V. It has an internal threshold voltage accuracy of ±1.5% over temperature. This allows the design of power supply systems with accuracy and repeatability, while also reducing the size of the power source. The device also features low power consumption, typical of 0.3μA with 3.3V supply voltage, which helps to minimise the energy lost in the circuit by maximising efficiency.

The device also features an ideal diode, which is a series connection of two MOSFETs on the same part, to provide improved conduction with negligible voltage drop in the forward path while blocking current flow in the reverse path. This helps ensure efficient current flow from one power source to the other, while minimising power loss due to the inherently low voltage drop of the ideal diode. The internal OR circuit helps maximise the power utilization of multiple power supply sources, by allowing current to flow from any one of the sources.

The OR function of the LTC4370CDE is designed to reduce the voltage generated by one of the power sources to the same level as the other one. This ensures uniform load distribution across all the sources, with the benefit of power savings. In addition, the device can detect an under-voltage or an over-voltage condition from either the power sources or the load, preventing a system malfunction or a power surge. The device can also operate as a simple switch, switching between the two power sources depending on the voltage level.

The LTC4370CDE offers superior performance and low power consumption in a small package, making it ideal for use in a power conversion system. With its wide range of applications, the device can help simplify the design process, increase system efficiency and reduce power losses. It has been widely used in a variety of industries, including communications, computing, automotive, industrial, and medical.

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