QM48T50025-PAA0

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DC-DC converters are widely used in modern technological applications to convert power from a DC source, such as a battery, into a different DC voltage level. They are found in a range of electronic devices, from cars and phones, to computers and medical equipment.

The QM48T50025-PAA0 is a switching DC-DC converter from Delta Electronics suited for automotive and industrial applications. This high efficiency, wide input voltage range DC-DC converter provides 500 W of output power at 25 V with up to 94% efficiency. The QM48T50025-PAA0 comes in a 3.3 x 3.3 inch industry-standard package and has a wide temperature operating range of -40°C to +85°C.

The QM48T50025-PAA0 is a non-isolated buck converter with voltage stabilizing and current limiting functions that can be adjusted to create an ideal environment for various applications. It allows for easy system design and flexibility with two adjustable potentiometers, one to determine output voltage and the other to determine current limit. It also has a status pin that indicates when the load current has exceeded the set current limit.

The working principle of the QM48T50025-PAA0 converter is based on a high-side power switch with an internal current limited switch driver and a low side power switch with a current feedback loop. When a voltage is applied from the outside, the high-side power switch is energized and the low-side power switch is off. At the same time, the voltage drop across the inductor is measured and the output voltage is adjusted using the voltage setting potentiometer.

The QM48T50025-PAA0 is typically used in applications that have a wide input voltage range but only require a specific output voltage. It is suitable for automotive, industrial, telecom and power supply applications. It is also ideal for converting an unregulated 12 V or 24 V input voltage into a precisely regulated 25 V output.

In conclusion, DC-DC converters such as the QM48T50025-PAA0 are versatile tools which allow us to convert power from a DC source into a different DC voltage level. This device is designed primarily for use in automotive and industrial applications where a wide input voltage range is needed and a precise output voltage is required. With its adjustable current limiting and voltage stabilizing functions, its status pin indicator and its high efficiency and power output features, the QM48T50025-PAA0 converter is an excellent choice for applications that require high-performance DC-DC conversion.

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