NMH1212SC

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DC-DC converters are a vital part of the modern energy grid, playing an essential role in the delivery of reliable power. The NMH1212SC is a switchmode DC-DC converter developed by ON Semiconductor for use in industrial, consumer, medical, and military applications. It is designed to convert a 24V DC input to 12V DC, with efficiency ratings of up to 93%. The NMH1212SC delivers 1.2A output current and features overvoltage, overload, and over temperature protection, making it a safe and reliable solution for DC-DC conversion.

The NMH1212SC is a synchronous rectification buck converter, utilizing a switching transistor to connect and disconnect the input voltage to the output at a preset frequency determined by the duty cycle of the control pulse applied to the transistor. Pressure from the incoming voltage is released when the input voltage is connected to a capacitive load, thus providing a clean output voltage. When the input voltage is disconnected, the stored energy in the capacitors is slowly released, providing the output voltage free of voltage spikes. This type of DC-DC converter is ideal for any application needing a consistent output voltage, making it a perfect fit for a wide variety of applications.

The NMH1212SC features low output ripple (50mV typical) due to its low output capacitance of 0.0047μF and synchronous rectification. The output voltage is adjustable over a wide range (6.5-13.2V) due to its on chip adjustable slope compensation, making it easy to adjust and fine tune the output voltage for specific applications. Its low differential input voltage (7V) and high efficiency (up to 93%) also make it ideal for applications where low power consumption is critical.

The NMH1212SC features a wide temperature range (-40°C to +85°C) and comes in a thermally enhanced 5-pin SOT-23 package. Its automatic soft-start feature helps reduce inrush current during start-up, while its in-rush current limit protects the power source from damaging overloads during turn on. The device also has an enable pin, allowing the user to increase or reduce the power on the system at will. The NMH1212SC also provides overvoltage, overload, and over temperature protection, making it a safe and reliable solution for DC-DC conversion.

The NMH1212SC is ideal for use in industrial, consumer, medical, and military applications. It is widely used for powering HVAC equipment, lighting, battery charging, and electronic test and measurement equipment, and has been approved by several international safety agencies, such as UL, CSA, and VDE.

The NMH1212SC is an efficient and reliable DC-DC converter and a great choice for any application where a constant output voltage and high efficiency are critical. Its low output ripple, wide input voltage range, adjustable output voltage, and protection features make it an ideal solution for a range of applications. The adjustable slope compensation, automatic soft-start, and enable pin allow for easy and reliable operation, making it one of the most popular DC-DC converter solutions available today.

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