Pololu 1.4-7V, 3.8A Fine-Adjust Step-Down Voltage Regulator W/ Adjustable Low-Voltage Cutoff D30V33MALCMA

Description

• Pololu 1.4-7V, 3.8A Fine-Adjust Step-Down Voltage Regulator W/ Adjustable Low-Voltage Cutoff D30V33MALCMA
• Converts 3V-45V input to 1.4V-7V output
• Delivers 3A-5A continuous current
• Achieves 80%-95% efficiency
• Includes precision 11-turn potentiometer
• Compact size with mounting holes

The Pololu 1.4-7V, 3.8A Fine-Adjust Step-Down Voltage Regulator W/ Adjustable Low-Voltage Cutoff D30V33MALCMA is a versatile voltage regulator designed to efficiently convert a wide range of input voltages from 3 V to 45 V into a stable output voltage between 1.4 V and 7 V. This regulator is capable of delivering a continuous output current typically ranging from 3 A to 5 A, depending on operating conditions. It is engineered for high efficiency, achieving typical efficiency levels between 80% and 95%, and incorporates several protective features to ensure reliable operation.

The device includes a precision 11-turn potentiometer, allowing for fine adjustments of both the output voltage and the low-voltage cutoff threshold. It is equipped with a soft-start function, under-voltage lockout protection, and integrated reverse-voltage protection up to 40 V. Additionally, the regulator features a power-save mode to enhance efficiency under light loads and a “power good” output to signal when the output voltage is not adequately maintained.

Compact in design, the regulator measures 0.9″ 1.2″ 0.3″ and includes mounting holes for secure installation. It also supports through-hole connections for headers and terminal blocks, facilitating easy integration into various applications. Note: Ensure proper handling to avoid exposure to conditions exceeding the specified voltage and current limits.

View moreWhat’s Included

• 1x Pololu 1.4-7V, 3.8A Fine-Adjust Step-Down Voltage Regulator W/ Adjustable Low-Voltage Cutoff D30V33MALCMA
• 1x 61 Straight male header strip
• 2x 2-pin, 3.5 mm-pitch terminal block

Dimensions

• 22.9 x 30.5 x 7 mm (0.9 x 1.2 x 0.3″)

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• Input voltage range: 3 V to 45 V
• Output voltage range: 1.4 V to 7 V, adjustable with an 11-turn potentiometer
• Maximum continuous output current: 3 A to 5 A
• Adjustable low-voltage cutoff threshold with an 11-turn potentiometer
• Efficiency: 80% to 95%
• Low dropout voltage
• Switching frequency: approximately 700 kHz under heavy loads
• Power-save mode for enhanced efficiency at light loads
• Low quiescent current
• Enable input for low-power shutdown
• “Power good” output indicator
• Frequency spread spectrum operation
• Under-voltage lockout protection
• Soft-start feature
• Integrated reverse-voltage protection up to 40 V
• Over-current and short-circuit protection
• Over-temperature shutoff