DCM12S0A0S12NFA Power Supplies - Board Mount

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DC/DC converters are electronic devices that convert an unregulated direct current (DC) source to a regulated DC source with different output voltage and current. DCM12S0A0S12NFA is a family of DC-DC converters from Qualcomm which are used for a wide range of industrial and automotive applications, especially for automotive interior/exterior lighting, HVAC systems, electronic systems and communications systems. They have high input voltage range, high output power, high efficiency, low standby current and wide temperature range.

The DCM12S0A0S12NFA DC-DC converter family uses a synchronous buck converter topology to achieve a regulated output voltage. It contains a power MOSFET switch, a low-side Schottky diode, and a high-side current-sense resistor. The switch is driven by an integrated Pulse Width Modulation (PWM) controller.

The power MOSFET switch is connected between the unregulated input voltage source and the output. The switch is driven by the PWM comparator, which controls the duty cycle of the switch to regulate the output voltage. The current-sense resistor senses the load current, which is used by the internal compensation network to regulate the output. The use of synchronous switching provides more efficient conversion of input power into output power than other converter topologies.

The low-side Schottky diode rectifies the reverse voltage created by the power MOSFET switch. This prevents output voltage spikes. The diode is also used to regulate the output voltage by clipping the maximum current that the switch can see. The output voltage can be pre-set and fine-tuned by an external resistor divider network.

The DCM12S0A0S12NFA DC-DC converters have an input voltage range of 6.5V to 50V, adjustable output voltage from 0.6V to 28V, regulated output current of up to 20A, and switching frequency of up to 500kHz. They also have a wide temperature range from -40°C to 125°C and can operate up to an altitude of 2000 meters.

In summary, DCM12S0A0S12NFA is a highly efficient synchronous buck converter topology family of DC-DC converters from Qualcomm used in many industrial and automotive applications. It features a wide input and output voltage range, high output current capability and adjustable output voltage. It also has very low standby current and wide temperature range making it suitable for high temperature and altitude operation.

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