component
LR1117DS12X
Public Made by Adomby adom
LRC Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223. 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
markdownLR1117DS12X
LRC · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223
LR1117DS12X from LRC, in a SOT-223. 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 | Gnd | power_in | Ground pin of the fixed-version regulator, the reference for the output voltage. |
| 2 | Vout | power_out | Regulated output; the datasheet recommends a 10uF tantalum or MLCC output capacitor for stability with ESR between 3mΩ and 22Ω. |
| 3 | Vin | power_in | Input supply; the recommended working input voltage is at most 15V and a 10uF input capacitor is recommended. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LRC |
| Package | SOT-223 |
| Category | Power Management (PMIC) |
| Pins | 3 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Output Voltage | Vout | 1.176 | 1.2 | 1.224 | V | 0≤Iout≤1A, Vin=3.2V | 3 |
| Load Regulation | ΔVout | 28 | mV | Vin =2.7V, 10mA≤Iout≤1A | 3 | ||
| Dropout Voltage | Vdrop | 1.15 | 1.3 | V | Iout=100mA | 4 | |
| Dropout Voltage | Vdrop | 1.3 | 1.5 | V | Iout=1A | 4 | |
| Quiescent Current | Iq | 2 | 5 | mA | Vin =10V | 4 | |
| Temperature Coefficient | ΔV/ΔT | -100 | 100 | ppm | 4 | ||
| Operating Junction Temperature | Tj | -20 | 125 | °C | 2 | ||
| Max Input Voltage | Vin | 18 | V | 2 | |||
| Max Operating Junction Temperature | Tj | 150 | °C | 2 | |||
| Ambient Operating Temperature | Ta | -40 | 85 | °C | 2 | ||
| Storage Temperature | Ts | -40 | 150 | °C | 2 | ||
| Lead Temperature | 260 | °C | 10S | 2 | |||
| Supply Voltage Rejection | SVR | 60 | dB | f = 120Hz, VIN - VOUT = 3V + 1VPP Ripple | 4 | ||
| Thermal Resistance Junction-to-Case | TJC | 20 | °C/W | SOT-223 | 4 | ||
| Thermal Resistance Junction-to-Ambient | TJA | 136 | °C/W | SOT-223 (No heat sink) | 4 |
CAD (KiCad official)
- Symbol:
LR1117DS12X - Footprint:
Package_TO_SOT_SMD:SOT-223-3_TabPin2 - 3D model: SOT-223 (KiCad packages3D, STEP)
- 3D model files:
lr1117ds12x-etched.step/lr1117ds12x-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lr1117ds12x.step/lr1117ds12x.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LRC datasheet (9 pp, sha256
67c0164382c5206c, retrieved 2026-10-28, tier: lcsc) - 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).