Texas Instruments LM2991T Linear Controllers
1-A, negative, adjustable low-dropout voltage regulator with enable
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
LM2991T
Detailed Description
1-A, negative, adjustable low-dropout voltage regulator with enable
Package
TO-220-5
Key Features
Package / Case: TO-220-5; Mounting Type: Through Hole
Lifecycle Status
NRND
RoHS State
RoHS Compliant
Datasheet
LM2991T Datasheet
Quick Jump:
Technical Specifications
Texas Instruments LM2991T Linear Controllers technical specifications.
General
Package / Case
TO-220-5
Mounting Type
Through Hole
Operating Temperature
-40°C ~ 125°C
PSRR
60dB (1kHz)
Output Type
Adjustable
Quiescent Current
0.7 mA
Current Supply Max
5 mA
Control Features
Enable
Output Current
1A
Output Configuration
Negative
Alternate Parts Comparison (LM2991T vs LM2941CT/NOPB vs LM2991T/NOPB vs UC285T-2)
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-220-5 | TO-220-5 | TO-220-5 | TO-220-5 |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole |
| Operating Temperature | -40°C ~ 125°C | 0°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 100°C |
| Max Input Voltage | -26V | 26V | -26V | 7.5V |
| Output Configuration | Negative | Positive | Negative | Positive |
| Output Current | 1A | 1A | 1A | 5A |
| Output Type | Adjustable | Adjustable | Adjustable | Fixed |
| Output Voltage | -3V | 5V | -3V | 2.1V |
| Protection Features | Over Temperature, Short Circuit | Over Temperature, Reverse Polarity, Short Circuit | Over Temperature, Short Circuit | Over Temperature, Reverse Polarity, Short Circuit |
| Voltage Dropout | 1V @ 1A | 1V @ 1A | 1V @ 1A | 2.2V @ 5A |
| Control Features | Enable | Enable | Enable | -- |
| Current Supply Max | 5 mA | 15 mA | 5 mA | -- |
| Action |
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