Texas Instruments LM3940IMPX-3.3 Linear Controllers
IC REG LINEAR 3.3V 1A SOT223-4
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
LM3940IMPX-3.3
Detailed Description
IC REG LINEAR 3.3V 1A SOT223-4
Package
TO-261-4, TO-261AA
Key Features
Package / Case: TO-261-4, TO-261AA; Mounting Type: Surface Mount
Lifecycle Status
NRND
RoHS State
RoHS Compliant
Datasheet
LM3940IMPX-3.3 Datasheet
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Technical Specifications
Texas Instruments LM3940IMPX-3.3 Linear Controllers technical specifications.
General
Package / Case
TO-261-4, TO-261AA
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 125°C
Output Type
Fixed
Max Input Voltage
7.5V
Output Current
1A
Output Configuration
Positive
Output Voltage
3.3V
Number of Regulators
1
Voltage Dropout
0.2V @ 100mA
Alternate Parts Comparison (LM3940IMPX-3.3 vs LM317DCYRG3 vs LM317MQDCYRG4 vs LM1117IMP-3.3/NOPB)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | TO-261-4, TO-261AA | TO-261-4, TO-261AA | TO-261-4, TO-261AA | TO-261-4, TO-261AA |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 125°C | 0°C ~ 125°C | -40°C ~ 125°C (TJ) | -40°C ~ 125°C |
| Max Input Voltage | 7.5V | 40V | 40V | 15V |
| Number of Regulators | 1 | 1 | 1 | 1 |
| Output Configuration | Positive | Positive | Positive | Positive |
| Output Current | 1A | 1.5A | 500mA | 800mA |
| Output Type | Fixed | Adjustable | Adjustable | Fixed |
| Output Voltage | 3.3V | 1.25V | 1.25V | 3.3V |
| Protection Features | Over Temperature, Short Circuit | Over Current, Over Temperature, Short Circuit | Over Current, Over Temperature, Short Circuit | Over Current, Over Temperature |
| PSRR | -- | 64dB ~ 57dB (120Hz) | 80dB ~ 65dB (120Hz) | 75dB (120Hz) |
| Action |
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