The Pololu 4.2-15V, 3.3A Fine-Adjust Step-Down Voltage Regulator W/ Adjustable Low-Voltage Cutoff D30V33MASCMA is a versatile voltage regulator designed for precise voltage control in various applications. It features an adjustable output voltage range from 4.2 V to 15 V, facilitated by a precision 11-turn potentiometer, which also allows for setting a customizable low-voltage cutoff threshold. This regulator is capable of delivering a continuous output current ranging from 1.3 A to 4.3 A, contingent upon input voltage, output voltage, and load conditions.
The device operates with a high efficiency of 80% to 95% and maintains a switching frequency of approximately 700 kHz under heavy loads. It is equipped with multiple protection features, including reverse-voltage protection up to 40 V, over-current and short-circuit protection, under-voltage lockout, and over-temperature shutoff. Additionally, the regulator incorporates a soft-start feature to manage inrush current and gradually increase the output voltage.
Compact in design, the regulator measures 0.9 1.2 0.3 and includes mounting holes and through-holes for headers and terminal blocks, making it suitable for projects requiring efficient voltage regulation. The inclusion of a “power good” output provides an indication of the output voltage status, ensuring reliable operation in various conditions.
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