component
LR8342A-T33
Public Made by Adomby adom
LR Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-3L. 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
markdownLR8342A-T33
LR · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-3L
LR8342A-T33 from LR, in a SOT-23-3L. 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 in the datasheet are referenced to GND. |
| 2 | VOUT | power_out | Regulated output voltage pin, 3.3 V for the LR8342A-T33 with ±2% output tolerance and up to 250 mA maximum output current. |
| 3 | VIN | power_in | Input voltage pin; maximum input supply voltage is 45 V absolute maximum, with the datasheet stating a 40 V maximum operating voltage. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LR |
| Package | SOT-23-3L |
| 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 | 45 | V | 5 | |||
| Maximum output current | IOUT | 250 | mA | 5 | |||
| Power dissipation, SOT23-3L | PD | 250 | mW | SOT23-3L | 5 | ||
| Operating temperature | TOPR | -40 | 105 | ℃ | 5 | ||
| Storage temperature | TSTG | -40 | 150 | ℃ | 5 | ||
| Nominal output voltage (ordering table, T33 = 3.3V) | VOUT | 3.3 | V | 2 | |||
| Output voltage tolerance | VOUT | -2 | 2 | % | VIN=12V, IOUT=1mA, CIN=COUT=1uF, TJ=25℃ (table header) | 5 | |
| Line regulation | ΔVLINE | 2 | 12 | mV | VIN=VOUT + 1V to 40V | 5 | |
| Load regulation | ΔVLOAD | 20 | 30 | mV | IOUT= 1mA to 100mA | 5 | |
| Load regulation | ΔVLOAD | 50 | 80 | mV | IOUT= 1mA to 250mA | 5 | |
| Dropout voltage | VDROP | 400 | mV | IOUT=100mA | 5 | ||
| Dropout voltage | VDROP | 1200 | mV | IOUT=250mA | 5 | ||
| Quiescent current | IQ | 1.5 | 4 | uA | TJ= 25℃ | 5 | |
| Current limit | ICL | 270 | 340 | mA | VIN=12V, IOUT=1mA, CIN=COUT=1uF, TJ=25℃ (table header) | 5 | |
| Thermal shutdown | TSD | 140 | ℃ | 5 | |||
| Thermal shutdown hysteresis | THY | 20 | ℃ | 5 | |||
| Input/output capacitor recommended range | CIN, COUT | 1 | 10 | uF | Layout recommendation | 8 | |
| Input series resistor (recommended) | 10 | Ω | Recommended about 10Ω in series at LDO input to absorb input spikes | 8 |
CAD (KiCad official)
- Symbol:
LR8342A-T33 - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3L (KiCad packages3D, STEP)
- 3D model files:
lr8342a-t33-etched.step/lr8342a-t33-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lr8342a-t33.step/lr8342a-t33.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LR datasheet (10 pp, sha256
63c3feea885d4d62, 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-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).