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Efficient step-down converter that reduces the input voltage from up to 45 V to a regulated output voltage range from 1.4 to 7 V, offering high efficiency and a maximum continuous current of 3.4 A. It has built-in protection against reverse polarity, overload and short circuit, and the spread spectrum function reduces EMI interference. The module is equipped with an additional potentiometer for adjusting the cut-off voltage. Pololu 4872
The D30V30 module is a high-performance buck (step-down) voltage converter that reduces input voltage to a lower value within the range of 1.4 V to 7 V. The device supports input voltages up to 45 V, and thanks to switching (SMPS) technology, it is significantly more efficient than linear voltage regulators, especially with large input-to-output voltage differences. The converter can provide a continuous output current of 1 A to 4.5 A, depending on voltage levels. It also includes multiple protection features, such as reverse polarity protection (up to 40 V), overvoltage protection, overload protection, and short-circuit protection. Additionally, the thermal shutdown function prevents overheating, while the soft-start feature limits inrush current and smoothly increases output voltage during startup.
The device has six pins: power good (PG), enable (EN), input voltage (VIN), output voltage (VOUT), and two ground (GND) terminals. The PG output signals when the output voltage exceeds permissible deviations, while the EN pin allows the module to switch to low-power mode. The EN pin is connected to a potentiometer, allowing you to adjust the circuit's cutoff voltage to your needs.
The converter features high efficiency, ranging from 80% to 95% depending on load conditions and input/output voltages. It operates with a switching frequency of approximately 700 kHz and supports a power-saving mode at low loads. Thanks to the spread spectrum function, it reduces electromagnetic interference (EMI). The module has a compact design and includes a mounting hole compatible with M2 screws. With a standard 2.54 mm pin spacing, it can be easily integrated with breadboards and other prototyping systems.
Data sheet
Manufacturer BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Poland sprzedaz@kamami.pl 22 767 36 20
Responsible person BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Poland sprzedaz@kamami.pl 22 767 36 20
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Efficient step-down converter that reduces the input voltage from up to 45 V to a regulated output voltage range from 1.4 to 7 V, offering high efficiency and a maximum continuous current of 3.4 A. It has built-in protection against reverse polarity, overload and short circuit, and the spread spectrum function reduces EMI interference. The module is equipped with an additional potentiometer for adjusting the cut-off voltage. Pololu 4872