STMicroelectronics LD1117AS33TR Microcontrollers
3.3V LDO Regulator, 1.2A, SOT-223, Pos, Fixed Output
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
LD1117AS33TR
Detailed Description
3.3V LDO Regulator, 1.2A, SOT-223, Pos, Fixed Output
Package
TO-261-4, TO-261AA
Lifecycle Status
Active
Datasheet
LD1117AS33TR Datasheet
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Technical Specifications
STMicroelectronics LD1117AS33TR Microcontrollers technical specifications.
General
RoHS
Yes
Package / Case
TO-261-4, TO-261AA
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 125°C
Lifecycle Status
Active
Output Type
Fixed
Max Input Voltage
15V
Output Current
1A
Quiescent Current
10 mA
Output Configuration
Positive
Related Parts Comparison (LD1117AS33TR vs LD1117S50CTR vs LD1117S33CTR vs LD1117S50TR)
Side-by-side specifications of related catalog parts.
Engineering verification required. Related parts may have different electrical ratings, pinouts, footprints, and operating limits. Verify suitability for your circuit before substitution.
| This Part | Related Part | Related Part | Related Part | |
|---|---|---|---|---|
| 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 | 0°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C | 0°C ~ 125°C |
| Lifecycle Status | Active | Active | Active | Active |
| Max Input Voltage | 15V | 15V | 15V | 15V |
| Number of Regulators | 1 | 1 | 1 | 1 |
| Output Configuration | Positive | Positive | Positive | Positive |
| Output Current | 1A | 800mA | 800mA | 800mA |
| Output Type | Fixed | Fixed | Fixed | Fixed |
| Output Voltage | 3.3V | 5V | 3.3V | 5V |
| Protection Features | Over Current, Over Temperature | Over Current, Over Temperature | Over Current, Over Temperature | Over Current, Over Temperature |
| PSRR | 75dB (120Hz) | 75dB (120Hz) | 75dB (120Hz) | 75dB (120Hz) |
| 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
NCP1117ST33T3GonsemiDirectonsemi
Pin YesPkg YesElec Yes
3.3V LDO Regulator, 1A, SOT-223, 1% Accuracy
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