Pololu 12V 300mA Step-Down Voltage Regulator D24V3F12

These buck (step-down) voltage regulators generate lower output voltages from input voltages as high as 42 V. They are switching regulators (also called switched-mode power supplies (SMPS) or DC-to-DC converters) and have a typical efficiency between 80% to 90%, which is much more efficient than linear voltage regulators, especially when the difference between the input and output voltage is large. This regulator is available with a fixed 3.3 V, 5 V, 9 V, or 12 V output, and two versions are available for each voltage, one with a 300 mA maximum output current (D24V3Fx) and one with a 600 mA maximum output current (D24V6Fx)

The regulator has short-circuit protection, and thermal shutdown prevents damage from overheating. The board does not have reverse-voltage protection.

If you need more output current, consider our D15V35F5S3 and D15V70F5S3 3.3V/5V step-down voltage regulators, which can typically deliver a continuous 3.5 A and 7 A, respectively.

• Size: 0.4? × 0.5? × 0.1?¹
• Weight: 0.5 g¹

• Minimum operating voltage: 14 V²
• Maximum operating voltage: 42 V
• Maximum output current: 300 mA
• Output voltage: 12 V
• Reverse voltage protection?: N
• Maximum quiescent current: 2 mA³