Product description: D36V28F3 - step-down converter - 3.3 V 3.6 A - Polyol 3781.
A step-down (buck) typeinverterwith an output voltage of 3.3 V and a currentcapacity of3.2 A to 4.5 A (typical3.6 A).The supported input voltage is4.5 V to 50 V. Module dimensions are 20 x 18 mm.
D36V28F3 inverter outputs
| Pin | Description |
|---|---|
| VIN | Input voltage. |
| GND | Mass potential. |
| VOUT | Output voltage. |
| ENABLE | If a low-voltage state below 1 volt is given), the system will go into a low energy consumption state (approx. 10 μA). The pin is pulled to the supply voltage through a 270 kΩ resistor, which makes the system switched on by default. |
| PG | Pin "Power Good" open-drain. It goes into a low state when the output voltage drops below 85 % of its nominal value. If this pin is used, a pull-up resistor, e.g. 10 kΩ, must be connected. |
The connectors are described accordingly on the board. The output roaster is 2.54 mm. The device can be plugged directly into thecontactboard,connected with wiresor soldered intoa dedicated PCB.
D36V28F3 converter.
Inverter system efficiency
Efficiency is defined as the ratio of output power to input power (Power out)/(Power in). This is an important parameter in the case of operation with portable power sources, where time is counted per charge cycle. The efficiency of this system is about 80% - 90%.
The efficiency graph of the system.
Specification of the D36V28F3 step-down converter
- Input voltage: 4.5 V to 50 V
- Output voltage: 3,3 V
- Accuracy of output voltage: 4%
- Continuous output current: 3,6 A
- Efficiency of 80% - 90%
- Protection against inverse polarity and against too high a current, voltage and temperature
- Switching frequency: approx. 500 kHz
- Soft-start function
- Two 2.2 mm (M2) mounting holes
- Dimensions: 20 x 18 mm
- Weight: 3,3 g
The set includes an inverter and connectors for self-soldering.
Useful links |
