Texas Instruments LM317KTTRG3 Microcontrollers
Adjustable Linear Voltage Regulator, 1.5A, 37V, TO-263
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
LM317KTTRG3
Base Model
Detailed Description
Adjustable Linear Voltage Regulator, 1.5A, 37V, TO-263
Package
TO-263-4, D²Pak (3 Leads + Tab), TO-263AA
Lifecycle Status
Active
Datasheet
LM317KTTRG3 Datasheet
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Technical Specifications
Texas Instruments LM317KTTRG3 Microcontrollers technical specifications.
General
Series
LM317
RoHS
Yes
Package / Case
TO-263-4, D²Pak
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 125°C
Lifecycle Status
Active
Output Type
Adjustable
Max Input Voltage
40V
Output Current
1.5A
Output Configuration
Positive
Alternate Parts Comparison (LM317KTTRG3 vs LM317KTTR vs LM2931ASX-5.0/NOPB vs LM2990SX-15/NOPB)
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-263-4, D²Pak | -- | TO-263-4, D²Pak | TO-263-4, D²Pak |
| Mounting Type | Surface Mount | -- | Surface Mount | Surface Mount |
| Operating Temperature | 0°C ~ 125°C | -- | -40°C ~ 85°C | -40°C ~ 125°C |
| Max Input Voltage | 40V | -- | 26V | -26V |
| Number of Regulators | 1 | -- | 1 | 1 |
| Output Configuration | Positive | -- | Positive | Negative |
| Output Current | 1.5A | -- | 100mA | 1.8A |
| Output Type | Adjustable | -- | Fixed | Fixed |
| Output Voltage | 1.25V | -- | 5V | -15V |
| Protection Features | Over Current, Over Temperature, Short Circuit | -- | Over Temperature, Reverse Polarity, Short Circuit | Over Temperature, Short Circuit |
| PSRR | 80dB ~ 65dB (120Hz) | -- | 80dB (120Hz) | 52dB (1kHz) |
| 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
LM317D2TR4GonsemiDirectonsemi
Pin YesPkg YesElec Yes
Adjustable LDO, 1.5A, 40V In, 37V Out, 80dB PSRR, D2PAK
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