Pololu 12V, 2.2A Step-Down Voltage Regulator D24V22F12
The D24V22Fx family of step-down voltage regulators generates lower output voltages from input voltages as high as 36V. They are synchronous switching regulators (also called switched-mode power supplies (SMPS) or DC-to-DC converters) with typical efficiencies of 85% to 95%, which is much more efficient than linear voltage regulators, especially when the difference between the input and output voltage is large. These regulators can typically support continuous output currents between 1.4A and 2.6A, though the actual available output current is a function of the input voltage and efficiency (see theTypical efficiencyandMaximum continuous output currentsections below). In general, the available output current is a little higher for the lower-voltage versions than it is for the higher-voltage versions, and it decreases as the input voltage increases.
These regulators have a typical quiescent (no load) current draw of around 1mA, and an enable pin can be used to put the boards in a low-power state that reduces the quiescent current to approximately 5µA to 10µA per volt on VIN.
The modules have built-in reverse-voltage protection, short-circuit protection, a thermal shutdown feature that helps prevent damage from overheating, and a soft-start feature that reduces inrush current.
The different voltage versions of this regulator all look very similar, so you should consider adding your own distinguishing marks or labels if you will be working simultaneously with multiple versions. This product page applies to all versions of the D24V22Fx family.
The D24V22Fx family is intended to replace our older D24V25Fx family of step-down voltage regulators. The two designs have the same size and similar current capabilities and input voltage ranges, but they do not have the same pinout and are based on different internal circuits, so there are fundamental differences in operation. In particular, these newer D24V22Fx regulators have much lower dropout voltages and provide a “power good” signal, and the newer design allows for higher output voltages (e.g. 12V).
Dimensions
| Size: | 0.7″ × 0.7″ × 0.31″1 |
|---|---|
| Weight: | 2.3 g1 |
General specifications
| Minimum operating voltage: | 12.7 V2 |
|---|---|
| Maximum operating voltage: | 36 V |
| Continuous output current: | 1.9 A3 |
| Output voltage: | 12 V |
| Reverse voltage protection?: | Y |
| Maximum quiescent current: | 4 mA4 |