ALO25K48N-L

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DC/DC converters are commonly used in a variety of applications, such as to convert power from one voltage level to another, providing regulated output voltage, isolating power, and utilizing transformation of current or voltage levels. Among these DC/DC converter types, the ALO25K48N-L is a high-efficiency non-isolated step-down DC/DC converter which is available in an ultra-small SIP-7L package, with a maximum switching frequency of 1.2 MHz. It offers a wide input voltage range, with Max. efficiency of 96.5% and a built-in protection circuit to guard against overcurrent, overvoltage, and overtemperature conditions.

The ALO25K48N-L converter is particularly suited for applications that require frequent or rapid voltage switching and where space is particularly limited. The switching frequency of 1.2 MHz means that the converter can switch between voltage levels in a fraction of the time other DC/DC converters are capable of. The ultra-small SIP-7L package makes it ideal for high-density, small form-factor applications, and its efficiency of up to 96.5%, ensures low power dissipation.

The working principle of the ALO25K48N-L is based on the PFM (pulse-frequency modulation) controlled DC/DC converter. It uses a two-level voltage converter, with an input voltage converted to a regulated, lower output voltage. The PFM controller first samples the output voltage, and when the voltage is detected to be out of range, it will turn on the control switch (MOSFET) for a pre-defined period of time. This switching periodically injects pulses of energy into the output and steps down the input voltage to the desired regulated output voltage.

The ALO25K48N-L also offers protections features that are particularly beneficial for space-constrained applications. It is equipped with overcurrent protection, which can quickly detect any currents greater than the rated value and shut down the power switch. Additionally, the converter is equipped with overvoltage protection that will trip the power switch when the output voltage exceeds the maximum rated voltage. Finally, overtemperature protection also guards against any possible thermal damage that can occur on the converter.

The ALO25K48N-L provides a robust and efficient solution for applications that require frequent or rapid voltage switching and need a small form factor. Its wide input voltage range, high efficiency, and built-in protection circuit make this converter well-equipped to handle all kinds of DC/DC conversion needs. The PFM based control circuitry ensures reliable, low-noise operation and helps to maintain a stable output voltage. The ALO25K48N-L is thus an ideal choice for conversion in space-constrained applications.

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