LT8303HS5#TRPBF

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LT8303HS5#TRPBF is an integrated DC/DC switching regulator, belonging to the PMIC Voltage Regulator category. It is specifically designed to produce regulated relatively low-level dc current and voltage, depending on the configuration. With its wide input range, output accuracy, and protection circuitry, LT8303HS5#TRPBF offers an excellent solution for applications that require high power.

In addition to its superior performance, LT8303HS5#TRPBF provides great flexibility. It can be set up for application specific needs and offers various features such as adjustable switching frequency, adjustable output current limit, under-voltage lockout, and over-voltage protection. Furthermore, its low quiescent current operation makes it suitable for applications needing a low system cost.

LT8303HS5#TRPBF features a current-mode step-down switching regulator and built-in protection functions. It can regulate an input voltage ranging from 4.5V to 28V and provides an adjustable output voltage ranging from 0.8V to 24V. The device is internally protected against current limiting, overload protection, thermal overload, and overtemperature conditions.

The power switch of the LT8303HS5#TRPBF is consist of a power transistor and an aux winding. The transistor controlling, together with the feedback loop, provides the ON/OFF signal to the power switch. The power switch, through the aux winding, will supply alternating current (AC) to the output capacitor, which acts as a smoothing filter.

The total output voltage is determined by the internal fixed 7.4V sense voltage and the external setting of the feedback divider. The external setting of the feedback divider, in combination with the internal sense voltage setting, allows for an adjustable voltage output from 0.8V to 24V.

The current-mode control makes the output current regulated, with a gain that is determined by the external resistor and capacitor. The compensation circuit adjusts, in relation to the output current and output voltage, the gain and phase, making the switching regulator stable. In addition, the switching frequency can be adjusted through an external resistor.

Due to its wide range of features, the LT8303HS5#TRPBF DC/DC switching regulator has been applied in various fields. It has been employed in a variety of applications such as automotive, computer peripherals, communications equipment, test and measurement equipment and PoE peripheral device. In these applications, the LT8303HS5#TRPBF offers an unparalleled reliability, performance and efficiency.

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