STMicroelectronics LD1117AS18TR Linear Controllers
Linear Voltage Regulator IC Positive Fixed 1 Output 1A SOT-223
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
LD1117AS18TR
Detailed Description
IC REG LINEAR 1.8V 1A SOT223
Package
TO-261-4, TO-261AA
Key Features
Package / Case: TO-261-4, TO-261AA; Mounting Type: Surface Mount
Lifecycle Status
Active
RoHS State
RoHS Compliant
Datasheet
LD1117AS18TR Datasheet
Quick Jump:
Technical Specifications
STMicroelectronics LD1117AS18TR Linear Controllers 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
Alternate Parts Comparison (LD1117AS18TR vs LD1117S12CTR vs LD1117STR vs LD1117S18CTR)
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 | 0°C ~ 125°C | -40°C ~ 125°C | 0°C ~ 125°C | -40°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 | Adjustable | Fixed |
| Output Voltage | 1.8V | 1.2V | 1.25V | 1.8V |
| Protection Features | Over Current, Over Temperature | Over Current, Over Temperature | Over Current, Over Temperature | Over Current, Over Temperature |
| PSRR | 80dB (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
NCP1117ST18T3GonsemiDirectonsemi
Pin YesPkg YesElec Yes
1.8V LDO Regulator, 1A, SOT-223, 1% Accuracy
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