This switched-mode power supply board can be used to supply the I2C modules or other devices with power.
The maximum input voltage range of the built-in switching regulator LM 2576 is 40V and delivers up to 3 A.
In the control cabinet you can thus generate further voltages from the most existing 24V DC.
Size of the circuit board 42 mm x 63 mm
Data Sheet Shematic Diagram data sheet LM2576
| 1 | circuit board I2HN3_LP lead-free tinned with solder resist |
| 1 | Resistors according to table in the data sheet |
| 1 | LED green 3mm 2 mA |
| 1 | Rectifier diode 1N4007 |
| 1 | Schottky Diode SB360 |
| 1 | Elko 100 yF / 63V |
| 1 | Elko 1000 yF / 25V |
| 1 | LM 2576 3,3 5 12 15 oder ADJ |
| 1 | heatsink + screw M3x16 Spacing roller Ø 3 x 8 mm |
| 1 | inductance 100 yH / 3,2 A |
| 1 | fuse holder + fuse 2,5 A medium time-lag |
| 2 | terminal 2 pol. |
| Uout | IC1 | R1 (1%) | R2 (1%) | R3 = Rv LED (5%) |
| 3,3V | LM 2576 T3,3 | -- | -- | 1,5 kΩ |
| 5V | LM 2576 T5 | -- | -- | 1,5 kΩ |
| 9V | LM2576 T-ADJ | 560 Ω | 3,6 kΩ | 3,6 kΩ |
| 10V | LM2576 T-ADJ | 590 Ω | 4,3 kΩ0 | 3,6 kΩ |
| 12 | LM 2576 T12 | -- | -- | 3,6 kΩ |
| 15V | LM 2576 T15 | -- | -- | 3,6 kΩ |
| 24V | LM2576 T-ADJ | 270 Ω | 4,99 kΩ | 11 kΩ |
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