QM48T50025-PBAP

Series:	--
Part Status:	Obsolete

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DC DC Converters

DC to DC converters are power conversion devices that convert one type of DC power into another type of DC power. This type of converter is used in many applications that require the input to be converted to the output voltage for device power consumption or to regulate the voltage in the output circuit.The QM48T50025-PBAP is a DC to DC converter with a high power conversion efficiency of up to 96%. It is a four-quadrant synchronous buck converter that utilizes two external N-channel power MOSFETs for higher conversion efficiency and fast transient response. It features a wide input voltage range of 4.5 – 24V and a continuous output current of up to 5A. It also has a programmable current limit, an over-temperature protection, an Under-Voltage Lock-Out condition (UVLO), and a frequency synchronization.The QM48T50025-PBAP application field includes mobile communications, industrial automation, transceivers and other non-consumer electronic products. It is suitable for circuit designs that require high efficiency and lower component count.

Working Principle

The QM48T50025-PBAP works based on the principle of switching power conversion. Two external N-channel power MOSFETs are used to convert incoming DC power to the desired voltage levels. The MOSFETs switch rapidly between conducting and non-conducting modes, thus allowing for efficient power conversion from the input to the output. The QM48T50025-PBAP is equipped with integrated control, current sense, and current limit circuitry to ensure reliability and efficient operation. The integrated control circuitry provides pulse-widening modulation for precise current limit and output voltage regulation; the current sense circuitry monitors the two MOSFETs to ensure safe operation; and the current limit circuit helps to protect the device from short circuit, over-current, and over-temperature conditions.The QM48T50025-PBAP provides various features for improved system control, performance, and safety. It can be programmed for fixed frequency operation (30kHz - 2MHz) over the full supply range, with synchronization capability to an external clock. The fast transient response ensures sensitivity for fast load changes without over-dissipation or over-regulation. The device also includes a programmable current limit feature that allows for safe operation by protecting the device from over-current conditions.The wide input voltage range and the high efficiency make the QM48T50025-PBAP an ideal choice for DC to DC converters in mobile communications, industrial automation, and other applications. It is a reliable and cost-effective solution for converting incoming DC power to the desired voltage levels and providing fast transient response, improved system control, and safety.

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