Texas Instruments REG1117A-2.5 LDO Voltage Regulators
IC REG LINEAR 2.5V 1A SOT223-4
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
REG1117A-2.5
Base Model
Detailed Description
1A positive fixed output linear voltage regulator with a 2.5V nominal output voltage and 1% accuracy. Features a 1.2V dropout voltage, 15V maximum input voltage, and operates from 3.8V to 15V supply. This SOT-223 package component offers a 1A maximum output current and a wide operating temperature range of -40°C to +125°C. Includes 62dB PSRR and 4mA quiescent current.
Package
SOT-223
Lifecycle Status
Active
RoHS State
RoHS Compliant
Datasheet
REG1117A-2.5 Datasheet
Quick Jump:
Technical Specifications
Texas Instruments REG1117A-2.5 LDO Voltage Regulators technical specifications.
General
Series
REG1117A
RoHS
No
Number of Channels
1
Package / Case
TO-261-4, TO-261AA
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 125°C
Supply Voltage
3.8V ~ 15V
Lifecycle Status
Active
Accuracy
1%
Package
SOT-223
Alternate Parts Comparison (REG1117A-2.5 vs REG1117A vs REG1117A/2K5 vs REG1117A-1.8/2K5)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Series | REG1117A | REG1117A | REG1117A | REG1117A-18 |
| 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 | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C |
| RoHS | No | Yes | Yes | Yes |
| Lifecycle Status | Active | Active | Active | Active |
| Line Regulation | 7 mV / V | 0.4 % / V | 0.4 % / V | 7 mV / V |
| Load Regulation | 10 mV | 0.4 % | 0.4 % | 10 mV |
| Max Input Voltage | 15V | 15V | 15V | 15V |
| Number of Outputs | 1 | 1 | 1 | 1 |
| Number of Regulators | 1 | 1 | 1 | 1 |
| Output Configuration | Positive | Positive | Positive | Positive |
| Action |
Texas Instruments REG1117A-2.5 LDO Voltage Regulators Overview
1A positive fixed output linear voltage regulator with a 2.5V nominal output voltage and 1% accuracy. Features a 1.2V dropout voltage, 15V maximum input voltage, and operates from 3.8V to 15V supply. This SOT-223 package component offers a 1A maximum output current and a wide operating temperature range of -40°C to +125°C.
Includes 62dB PSRR and 4mA quiescent current.
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
NCV1117ST25T3GonsemiDirectonsemi
Pin YesPkg YesElec Yes
Linear Voltage Regulator IC Positive Fixed 1 Output 1A SOT-223
NCP1117ST25T3GonsemiSimilaronsemi
Pin YesPkg YesElec Mixed
2.5V LDO Regulator, 1A, SOT-223, Surface Mount
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Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.
