S-8351A35MC-J2UT2U

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S-8351A35MC-J2UT2U Application Field and Working Principle

S-8351A35MC-J2UT2U belongs to PMIC - Voltage Regulators - DC DC Switching Regulators, which are mainly used for stabilizing the output voltage and generating regulated output voltage from an unregulated input voltage. It works by controlling the duty cycle of an internal switch, in order to step up or step down an input voltage, thus having a regulated output.

The S-8351A35MC-J2UT2U is a DC-DC converter with a high performance and low output ripple, featuring small size and low EMI. It supports a wide input voltage range of 3.3V - 15V, providing a 0.9V to 5V adjustable output voltage. It is equipped with built-in protection functions, such as under voltage protection, over voltage protection, and over current protection, making it an excellent choice in the field of voltage regulators.

Let\'s take a look at the working principle of the S-8351A35MC-J2UT2U. The device consists of an input voltage pin, an output voltage pin, an enable pin, and a power switch. The power switch will be initially set in the "off" position, and when a high signal is applied to the enable pin, the switch will be turned on. The input voltage will be stepped down or stepped up with the help of a transformer, resulting in a regulated output voltage at the output pin.

The actual switching of the S-8351A35MC-J2UT2U is done by the integrated MOSFET (Metal Oxide Semiconductor Field Effect Transistor). When the enable pin is grounded, the MOSFET will be turned off, resulting in no current flow, thereby shutting down the power to the output voltage pin. On the other hand, when the enable pin is driven high, the MOSFET will be turned on and the current will flow, allowing the power to be supplied to the output voltage pin.

The output voltage is regulated by controlling the duty cycle of the power switch. The principle here is to simply switch the power supply on and off at specific intervals, with the switch being on for a longer period of time for higher output voltages, and for a shorter period of time for lower output voltages. Hence, the switching frequency is an important parameter in this technique.

The S-8351A35MC-J2UT2U is suitable for a wide range of applications, such as portable consumer electronics, home appliances, and industrial equipment. With its high performance, low output ripple, and small size, it is an ideal choice for any voltage regulator applications.

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