QM48T25050-NDB0

DC-DC converters are electronic devices that provide a convenient way to convert higher voltage DC sources into lower voltage DC sources, and vice versa. The model QM48T25050-NDB0 offers a high-efficiency synchronous buck (step-down) or buck-boost (reverse polarity) DC-DC converter. With a wide input range of 6.5V to 36V and output voltage range of 0.6V to 30V, it extracts maximum power from a given input voltage while maintaining tight load and line regulation. It also features a high efficiency of up to 95% and excellent load transient response.

Application field

The application field of the QM48T25050-NDB0 is quite wide. It can be used in most DC/DC converter applications, such as high density point-of-load (POL) converters for distributed power architectures, single-phase DC/DC converter solutions for core processor voltage regulation, and four-phase DC/DC converter solutions for multi-processor systems. It is also suitable for automotive applications, such as active cascading of automotive battery buses, high-efficiency current sharing of serial-connected batteries, and driving of high-current LED headlamps. This model is also used in communications, industrial, medical, and consumer electronic applications.

Working principle

The working principle of the QM48T25050-NDB0 can be best explained by its design. Its synchronous buck architecture includes a low-resistance N-channel power MOSFET paired with the integrated synchronous buck controller IC, providing for up to high 95% efficiency without the need for any external components. The integrated MOSFET enables the converter to maintain excellent load and line regulation while extracting maximum power from a given input voltage. Furthermore, its constant frequency current-mode PWM controller enables the converter to accurately adjust the output voltage to the desired levels, regardless of the input voltage and the load current. This high degree of load regulation is ideal for applications where fast transient response is required. Additionally, it features a temperature shutdown protection and an optional remote on/off control.

Overall, the QM48T25050-NDB0 is an ideal choice for any applications requiring a high efficiency, wide input voltage range, and excellent load transient response. It also provides a wide array of features such as high efficiency, temperature shutdown protection, and remote on/off control making it a great choice for many DC/DC converters applications.