LTC1702ACGN#TRPBF

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The LTC1702ACGN#TRPBF is a two-phase, DC to DC switching controller specifically designed for synchronous buck and buck-boost topologies and adjustable output voltage applications. It supports a very wide input voltage range, allowing the use of a configuration with just two components: an external power MOSFET and a few resistors. Furthermore, its sophisticated current control and protection circuits allow easy implementation of power supplies in systems ranging from 5W to 100W, with a very efficient and reliable operation.

Application Field.

The LTC1702ACGN#TRPBF can be used in a variety of different applications, from automotive and telecommunications to industrial, datacom and computing applications. It is a great choice for dc-dc converters in low power systems and embedded controllers, owing to its wide input voltage range and current mode control. Additionally, its low parts count, efficient operation and robust protection features make it a very reliable solution for higher power systems, like power-over-ethernet, medical, set-top box, gaming, instrumentation and equipment rack applications, and high power DC-DC converters.

Working Principle.

The LTC1702ACGN#TRPBF uses current mode control to provide a very accurate and stable output voltage regulation. This type of current control also allows fast response times and offers a very low output voltage ripple. The controller uses its internal oscillator, sensing the output voltage or the current waveforms on the current sense resistor in order to adjust the output voltage and limit the output power automatically if needed. Additionally, the built-in protection features prevent the converter from entering an overvoltage, overcurrent or overtemperature situation.

The LTC1702ACGN#TRPBF has two switches and is designed to operate with zero voltage switching (ZVS), further improving the efficiency of the converter. When the switches are triggered, the output voltage will be immediately adjusted. The device also features a soft-start mechanism to reduce in-rush current at start-up and to limit the peak current into the MOSFETs. All of these features make the LTC1702ACGN#TRPBF an ideal solution for a wide range of DC-DC applications.

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