LT1501CS8-3.3

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The LT1501CS8-3.3 is a high efficiency, low noise, positive fixed output, step-down DC-DC converter with integrated internal high side and low side MOSFETs. It is packaged in a thermally enhanced 8-Lead TSSOP package, with an output current capability up to 1.8A. It is ideal for point-of-load applications where low cost and high efficiency are most important.

The LT1501CS8-3.3 DC-DC switching regulators are equipped with an internally compensated, peak current mode control loop. This ensures excellent line and load regulation, as well as fast transient response. The LT1501CS8-3.3 features an adjustable minimum off time, which enables the output voltage to be precisely regulated during light or no load conditions.

It is designed to automatically maintain the output voltage during large or in-rush transient currents by temporarily increasing the switching frequency above the set point. Moreover, an integrated power good output signal reports when the output voltage is within ±10% of the programmed voltage.

The LT1501CS8-3.3 has many applications in any system that requires 3.3V power supply with high efficiency and low noise, such as telecom supplies, industrial server, copper SFF and portable applications. Moreover, the adjustable switching frequency of the LT1501CS8-3.3 is ideal for noise sensitive applications.

The working principle of LT1501CS8-3.3 DC-DC switching regulators is based on the fact that when an inductor is connected to strong current poles, the magnetic field created by the current is stored within the inductor. When the switch is opened, the current within the inductor is forced through the free winding, which creates a regenerative reaction within the circuit. The regenerative current and the magnetic field exchange energy back and forth, each charging one another and decreasing the current. As the switch is closed again, the same process is repeated.

The switching frequency of the LT1501CS8-3.3 DC-DC switching regulators is controlled via an external compensation network, so the inductor current is forced to follow the output voltage. This ensures that the output voltage is always kept at the programmed value and that the system operates with near-perfect efficiency.

In summary, the LT1501CS8-3.3 DC-DC switching regulators is an ideal solution for applications requiring a 3.3V, high efficiency, and low noise power supply. It is designed to provide precision output voltage regulation, a fast transient response and a long life cycle. Moreover, this device features the ability to adjust the switching frequency to minimize noise in sensitive applications.

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