LES20B48-3V3RAJ

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DC-DC converters are used to convert a voltage from one DC voltage level to another. The LES20B48-3V3RAJ is a DC-DC converter designed with two independent, isolated DC outputs. It operates in a buck topology, using high-frequency on-off switching to convert a higher input voltage to the two lower output voltages.

The LES20B48-3V3RAJ is a four-terminal device, consisting of an input terminal, two isolated output terminals, and a common ground terminal. The input voltage can range from 6.5 to 32 volts DC, while the two outputs can provide regulated voltages from 0.6 to 6 volts DC. The device is capable of a peak output current of 3 amps and an output power of 18 watts.

For the LES20B48-3V3RAJ to operate, several components are necessary. First, a power transformer with two isolated secondary windings is needed. These two windings have different voltage turns ratios, which when combined with the switch allows for the two isolated outputs. Second, a switching MOSFET is needed in order to alternately turn the input power on and off in order to achieve the desired output voltage at the secondary windings of the power transformer. Third, a control IC that contains the necessary logic and circuitry to drive the switch MOSFET and to provide the necessary feedback loops for regulation of the two output voltages. Finally, a set of capacitors are needed to filter the output voltages for noise and ripple.

When the device is operating, it is in a state of continuous switching. The control IC monitors the load on the outputs and adjusts the duty cycle of the switch accordingly. This in turn allows the isolated outputs to be held at a very precise level, no matter what the load does or what changes occur at the input. If the load current increases, then the duty cycle of the switch is increased, thereby increasing the output current. Conversely, if the load current decreases, the duty cycle of the switch is decreased so as to provide the correct output voltage.

The application field of the LES20B48-3V3RAJ is quite wide, due to its ability to provide dual, isolated output voltages. It can be ideal for distributed power systems, LED strip lights, power supplies for FPGA cards, automotive, industrial, telecommunication, and medical applications, among others. It is also capable of providing high levels of efficiency, as much as 95%, which is desirable for many applications.

Overall, the LES20B48-3V3RAJ is an excellent choice for any application that requires regulated, isolated power supplies. Its wide input range, high efficiency, and two isolated output channels make it suitable for many power conversion applications. With its advanced control circuitry, it can provide reliable, precise power conversion for a variety of applications.

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