Texas Instruments REG1117-3.3 Microcontrollers
3.3V LDO Regulator, 800mA, 15V In, SOT-223
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
REG1117-3.3
Base Model
Detailed Description
3.3V LDO Regulator, 800mA, 15V In, SOT-223
Package
TO-261-4, TO-261AA
Lifecycle Status
Active
Datasheet
REG1117-3.3 Datasheet
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Technical Specifications
Texas Instruments REG1117-3.3 Microcontrollers technical specifications.
General
Package / Case
TO-261-4, TO-261AA
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 125°C
Lifecycle Status
Active
Output Type
Fixed
Max Input Voltage
15V
Output Current
800mA
Quiescent Current
10 mA
Output Configuration
Positive
Output Voltage
3.3V
Alternate Parts Comparison (REG1117-3.3 vs REG1117 vs REG1117/2K5 vs REG1117F-3.3/500)
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 | SOT-223 | TO-261-4, TO-261AA | TO-263-4, D²Pak |
| Operating Temperature | -40°C ~ 125°C | 0 °C ~ 125 °C | -40°C ~ 125°C | -40°C ~ 125°C |
| Lifecycle Status | Active | Production | Active | Active |
| Max Input Voltage | 15V | 15 V | 15V | 15V |
| Number of Regulators | 1 | 1 | 1 | 1 |
| Output Current | 800mA | 800 mA | 800mA | 800mA |
| Output Type | Fixed | Fixed, Adjustable | Adjustable | Fixed |
| Output Voltage | 3.3V | 13.5 V | 1.25V | 3.3V |
| Quiescent Current | 10 mA | 4 mA | 10 mA | 10 mA |
| Voltage Dropout | 1.2V @ 800mA | 1.1 V | 1.2V @ 800mA | 1.2V @ 800mA |
| Mounting Type | Surface Mount | -- | Surface Mount | Surface Mount |
| Output Configuration | Positive | -- | Positive | Positive |
| Action |
Cross Reference
Manufacturer-stated alternates from official cross-reference tools. These are not a guaranteed pin-compatible drop-in. Qualify package, pinout, and electrical limits against the datasheet before a board change. See cross-reference vs drop-in compatible .
Suggested replacements
NCV1117ST33T3GonsemiDirectonsemi
Pin YesPkg YesElec Yes
3.3V LDO, 1A, 1% Acc, 64dB PSRR, SOT-223
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