VQB75W-Q48-S15

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DC-DC converters are electrical devices used to convert a direct current (DC) input voltage into a lower or higher DC output voltage in order to power electronic systems and devices from a common power source. The VQB75W-Q48-S15 is a type of DC-DC converter designed to provide an adjustable output voltage in range of 1.5 V to 15 V from a supply voltage up to 48 VDC. This converter has a wide range of applications, including consumer electronics, telecommunication, instrumentation, automotive and aerospace applications.

The VQB75W-Q48-S15 converter utilizes a high frequency non-isolated synchronous buck-converter topology with a voltage-mode control. It utilizes pulse-width-modulation (PWM) control based on switching frequency to achieve excellent accuracy and line and load regulation with minimal ripple. It has an adjustable output voltage range that can be set with a single external resistor. It also features over-voltage, over-current, over-temperature and over-load protections for continuous and reliable operation.

The VQB75W-Q48-S15 converter features an extended operating temperature range from -40 to +85°C, with high efficiency up to 95%. Its typical no-load power draw is less than 0.2 W, making it suitable for low power applications. It also has a low externally forced oscillation frequency range of 75 kHz to 200 kHz, making it suitable for low EMI/EMC applications. A high conversion frequency of 1 MHz offers the ability to reduce converter size and output filter size.

The VQB75W-Q48-S15 converter has an integrated precision current sense achieved with a resistor over the feedback pin which allows for output current sensing up to 1.5A. Its input has reverse polarity protection, so it can be connected in either direction and protected with an external fuse. Its minimalistic design eliminates the need for external components such as inductors, output capacitors and external shutdown.

The VQB75W-Q48-S15 converter has several advantages over other DC-DC converters. Its high-efficiency and low no-load power draw make it suitable for energy constrained applications. Its wide input voltage range and extended operating temperature range make it suitable for applications in harsh environments. Its minimalistic design allows for compact, low-cost applications. Its integrated current sensor enables output current limiting, and its high conversion frequency and precision voltage regulation allow for high accuracy in voltage control and minimal output ripple.

Overall, the VQB75W-Q48-S15 converter is suitable for a wide range of applications, offering excellent accuracy, reliability, and performance. It is designed to offer reliable power solutions for low-power and high-power applications. Its wide input voltage range and extended temperature range make it suitable for use in harsh environments, and its minimalistic design makes it suitable for low-cost, compact applications. Its high efficiency and low no-load power draw make it an excellent choice for energy-constrained applications. Its integrated current sensor and high conversion frequency enable precise current and voltage regulation, making it a great choice for applications requiring high accuracy, reliability, and performance.

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