SUCS10123R3B

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DC-DC converters used widely in many electronic circuits. Many of these converters come with different voltage parameters and are designed to be compatible with various devices. The SUCS10123R3B is an offline Buck-Boost DC-DC converter that can be used with many applications.

The SUCS10123R3B offers extended input voltage range between 9V to 19V, allowing efficient electrical operation of the device even with wide input voltage ranges. This device offers adjustable output voltage range of 3.3V to 19V, with an onboard linear regulator guaranteeing very low output voltage ripple and precise output voltage regulation.

The SUCS10123R3B can deliver up to 5A output current and is capable of more than 90% power conversion efficiency with very low standby power consumption of <100μA. The device supports a range of safety features, such as output over-current protection, over-temperature protection, over-voltage protection and short-circuit protection, which provide protection against unsafe operating conditions. The optional Power Good output signal indicates that the output voltage has been regulated to the set voltage.

The working principle of the SUCS10123R3B is based on the Buck-Boost topology. It automatically adjusts the output current to keep the output voltage constant during input voltage variations. This Buck-Boost converter uses an inductor and two power switches to step the input voltage up or down as needed. At the beginning of each cycle, the inductor is initially charged at the input voltage and then discharged through the power switch, providing the output with a voltage boost. In the second phase of the cycle, the inductor is recharged using the output voltage, providing a voltage buck.

The primary feature of the SUCS10123R3B is its high efficiency and power capability. The device supports high-duty cycle, low-noise operation, without achieving excessive heat generation. This makes it ideal for applications that require prolonged operation at industrialized environments. Applications for the SUCS10123R3B might include powering fixed network systems, industrial control systems, and automotive electronics.

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