← All parts
Low-Dropout Regulator for 5-V to 3.3-V Conversion
LM3940IT
transistor
The LM3940 is a 1-A low-dropout regulator that converts a 5-V input to a stable 3.3-V output for use in systems with both 5-V and 3.3-V logic.
In stock
Specifications
7- Operating Voltage
- 5 V (input), 3.3 V (output)
- Supply Current
- 1 A
- Resolution
- Not specified
- Range
- 4.5 V to 5.5 V (input)
- Accuracy
- 3.20 V to 3.40 V V
- Temperature Range
- -40°C to 125°C (TJ)
- Package
- TO-220, DDPAK/TO-263, SOT-223
Pinout
3| Pin | Name | Functions | Notes |
|---|---|---|---|
| IN | Input voltage supply | POWER | A 0.47-µF capacitor should be connected at this input. |
| GND | Common ground | GND | - |
| OUT | Output voltage | POWER | A 33-µF low ESR capacitor should be connected to this pin. |
Interactive pinout
Highlight:
LM3940IT
Click a pin to copy its name · tap a tag above to spotlight a bus.