V24C36C100B

DC DC Converters:

A DC-DC converter is an active electronic component that converts a DC voltage from one level to another. It is commonly used to provide a regulated output voltage from an unregulated DC power source or to provide a higher voltage and/or current than the input voltage. The basic operating principle behind a DC-DC converter is that of switching one or more transistors, such as MOSFETs, on and off at a high frequency to convert a direct current voltage from one level to another. The energy efficiency of the converter is often increased by using Pulse Width Modulation (PWM) to regulate the amplitude and duration of the voltage pulses.

V24C36C100B Application Field and Working Principle

The V24C36C100B is a DC-DC converter used for powering secondary lower voltage circuits, such as USB power supplies and mobile phones, from a higher voltage source. The converter is based on a buck topology and uses N-channel power MOSFETs along with CMOS control logic for its operation. The converter has a wide range of input voltages from 9V to 36V and a fixed adjustable output voltage of 3.3V. The output current can be adjusted using an external resistive divider connected to the converter\'s Adjust pin.

The working principle of the V24C36C100B begins with the primary MOSFET turning on and conducting current from the input voltage source. The primary inductor then stores energy in its magnetic field as the primary MOSFET is switched on and off at a higher frequency. This higher frequency switching is regulated by an internal oscillator which is programmed by the duty cycle of the control logic output signals. The duty cycle is used to regulate the length of time that the MOSFET is turned on and off, which in turn regulates the output voltage of the converter. The output voltage is sensed by an integrated error amplifier and compared to the internal reference voltage. The output voltage is then adjusted until it matches the reference voltage and the converter achieves regulation.

With its wide input voltage range, adjustable output voltage, and high efficiency, the V24C36C100B is a very suitable DC-DC converter for many different applications. It can be used for powering a wide range of devices from USB powered consumer products to industrial DC-DC converters.