component
LR8341A-M27
Public Made by Adomby adom
LR Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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| lr8341a-m27-etched.glb | 3h ago |
| lr8341a-m27-etched.step | 3h ago |
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| lr8341a-m27.glb | 3h ago |
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| lr8341a-m27.lbr | 3h ago |
| lr8341a-m27.step | 3h ago |
| package.json | 3h ago |
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| README.md | 3h ago |
LR8341A-M27
LR · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3
LR8341A-M27 from LR, in a SOT-89-3. 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; all voltages are referenced to GND. |
| 2 | VIN | power_in | Input supply pin, input voltage up to 40V (absolute max 55V), requires a ceramic bypass capacitor of at least 1uF. |
| 3 | VOUT | power_out | Fixed 2.7V regulated output delivering 100mA, requires an output capacitor of at least 1uF. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LR |
| Package | SOT-89-3 |
| 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 |
|---|---|---|---|---|---|---|---|
| Maximum input supply voltage | VIN | 55 | V | 4 | |||
| Maximum output current | IOUT | 160 | mA | 4 | |||
| Power dissipation (SOT89-3) | PD | 500 | mW | SOT89-3 package | 4 | ||
| Operating temperature | TOPR | -40 | 105 | ℃ | 4 | ||
| Storage temperature | TSTG | -40 | 125 | ℃ | 4 | ||
| ESD HBM POS/NEG | -3000 | 3000 | V | H.B.M | 4 | ||
| Maximum junction temperature (absolute maximum ratings) | TJ(MAX) | 150 | °C | 8 | |||
| Maximum junction temperature (normal operation) | TJ | 125 | °C | recommended for reliable normal operation | 8 | ||
| Input supply voltage | VIN | 40 | V | ISS=5uA | 4 | ||
| Line regulation | ΔVOUT | -30 | 30 | mV | VOUT+2V≤VIN≤40V, IOUT=5mA | 4 | |
| Load regulation | ΔVOUT | -50 | 50 | mV | VIN= VOUT+2V, 1mA≤IOUT≤100mA | 4 | |
| Minimum dropout voltage | VDrop | 320 | 390 | 450 | mV | IOUT=50mA, ΔVOUT=±2%*VOUT | 4 |
| Minimum dropout voltage | VDrop | 600 | 750 | 900 | mV | IOUT=100mA, ΔVOUT=±2%*VOUT | 4 |
| Quiescent current | ISS | 2 | 5 | uA | VIN= VOUT+2V | 5 | |
| Output voltage temperature coefficient | ΔVOUT/(ΔTa*VOUT) | -100 | 100 | ppm/℃ | VIN= VOUT+1V, IOUT=10mA, -40℃≤Ta≤85℃ | 5 | |
| Input capacitor (recommended range) | CIN | 1 | 10 | uF | ceramic; layout guide recommends CIN=COUT between 1uF and 10uF | 10 | |
| Output capacitor (recommended range) | COUT | 1 | 10 | uF | ceramic; layout guide recommends CIN=COUT between 1uF and 10uF | 10 | |
| Thermal resistance junction-to-ambient (SOT89-3) | θJA | 200 | °C/W | SOT89-3 package | 8 |
CAD (KiCad official)
- Symbol:
LR8341A-M27 - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files:
lr8341a-m27-etched.step/lr8341a-m27-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lr8341a-m27.step/lr8341a-m27.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LR datasheet (12 pp, sha256
9debd2ff576f27c4, retrieved 2026-10-18, 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-sonnet-5-5(text+vision), consensusclaude-opus-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).