Click or scroll to zoom
Tap or pinch to zoom
LM3940IT 1A 5V to 3.3V Low Drop Out Conversion Regulator - 10 Pack
$15.95
SKU 61727425
The LM3940 from PMD Way is a 1A low dropout regulator designed to provide 3.3V from a 5V supply. The LM3940 is ideally suited for systems which contain both 5V and 3.3V logic, with prime power provided from a 5V bus.
Because the LM3940 is a true low dropout regulator, it can hold its 3.3V output in regulation with input voltages as low as 4.5V.
The T0-220 package of the LM3940 means that in most applications the full 1A of load current can be delivered without using an additional heatsink.
The T0-220 package of the LM3940 means that in most applications the full 1A of load current can be delivered without using an additional heatsink.
Download datasheet (.pdf)
- Input Voltage MAX: 7.5 V
- Output Voltage: 3.3 V
- Dropout Voltage - Max: 0.8 V at 1A, 0.15 V at 100 mA
- Output Current: 1 A
- Load Regulation: 50 mV
- Number of Outputs: 1 Output
- Output Type: Fixed
- Maximum Operating Temperature: + 125 C
- Mounting Style: Through Hole
- Package / Case: TO-220-3
- Input Bias Current - Max: 10 mA
- Input Voltage MIN: 4.5 V
- Line Regulation: 40 mV
- Minimum Operating Temperature: - 40 C.
Free delivery, worldwide.