component
LM1117DT-ADJ
Public Made by Adomby adom
Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLM1117DT-ADJ
Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252
LM1117DT-ADJ from Texas Instruments, in a TO-252. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | ADJ | passive | Adjust pin of the adjustable version that sets the output voltage through the external resistor divider from a 1.25 V reference, with ADJ current typically 60 µA and able to withstand ±25 V transients relative to VOUT without damage. |
| 2 | VOUT | output | Regulator output pin (also connected to the TAB); a tantalum output capacitor of at least 10 µF with ESR between 0.3 Ω and 22 Ω is required for stability, and 22 µF is needed when a CADJ bypass capacitor is used. |
| 3 | VIN | power_in | Regulator input pin, with an absolute maximum VIN-to-GND of 20 V and a recommended input voltage of up to 15 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TO-252 |
| Category | Power Management (PMIC) |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
LM1117DT-ADJ - Footprint:
Package_TO_SOT_SMD:TO-252-2 - 3D model: TO-252 (KiCad packages3D, STEP)
- 3D model files:
lm1117dt-adj-etched.step/lm1117dt-adj-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm1117dt-adj.step/lm1117dt-adj.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (47 pp, sha256
7fd0304d2893365e, retrieved 2026-10-08, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).