LTC3772ETS8#TRPBF

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The LTC3772ETS8#TRPBF is a synchronous switching regulator controller that provides a simple and convenient way to implement efficient, isolated synchronous buck regulator designs. It offers a wide input voltage range of 6.5V to 72V and up to 95A of output current. The LTC3772ETS8#TRPBF is ideal for use in automotive, industrial, and medical applications.

The LTC3772ETS8#TRPBF integrates a low-side MOSFET driver and a high-side MOSFET/BJT driver, eliminating the external power transistor stages needed for traditional multi-phase converter designs. It also features a high-performance, low-ripple current sensing close loop with a 0.9V reference, an integrated programmable over-current protection circuit, and a dedicated enable input. Furthermore, it also has an integrated soft-start function, and can be enabled with a high level or latch signal.

The LTC3772ETS8#TRPBF is available in an 8-pin plastic TSOT package. The thermal shutdown temperature of this controller is set to 155°C for reliable operation. The switching frequency can be adjusted between 200 kHz and 1.2 MHz depending on the external board size and efficiency requirements without any internal circuit modifications.

The working principle of the LTC3772ETS8#TRPBF is based on the concept of pulse width modulation (PWM) control. This controller compares the input voltage to a reference voltage and then adjusts the duty cycle of the PWM signal accordingly. As a result, the output current follows the reference voltage closely, resulting in a low output ripple, high accuracy, and stable operation at different loads. Furthermore, the current-mode architecture enables the controller to respond quickly to output current changes and reduce the output voltage overshoot.

The LTC3772ETS8#TRPBF is a versatile and reliable voltage regulator controller, capable of significantly improving the efficiency of DC-DC switching power supplies. It is suitable for automotive, industrial, and medical applications requiring high current and high input voltage. The integrated features and adjustable switching frequency allow designers to build compact and efficient power solutions that meet their specific requirements.

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