component
ME431LAXG
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MICRONE Voltage Reference, SOT-23. 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
markdownME431LAXG
MICRONE · Voltage Reference · SOT-23
ME431LAXG from MICRONE, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | REF | input | Reference input pin for programming output voltage via external resistors to 2.5-36 V; maximum input current 10 mA. |
| 2 | A | passive | Anode terminal; maximum voltage to cathode is 36 V; continuous current range ±80 mA. |
| 3 | K | passive | Cathode terminal; regulated output voltage from 2.5 V to 36 V (2.5 V ±0.5% internal reference); continuous current range ±80 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MICRONE |
| Package | SOT-23 |
| 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 |
|---|---|---|---|---|---|---|---|
| Reference voltage (0.5% grade, ME431LAXG) | VREF | 2.488 | 2.5 | 2.512 | V | VKA=VREF, IKA=1mA | 5 |
| Dynamic impedance | KA / Z / | 0.05 | 0.5 | Ω | VKA=VREF, IKA=1 ~ 80mA, f≤1.0KHz | 5 | |
| Minimum cathode working current | IKA (MIN) | 20 | 35 | uA | VKA=VREF | 5 | |
| Ratio of reference input voltage change to cathode-to-anode voltage change (10V to VREF) | ΔVREF/ΔVKA | -0.4 | -2.7 | mV/V | IKA=1mA, ΔVKA=10V~VREF | 5 | |
| Ratio of reference input voltage change to cathode-to-anode voltage change (36V to 10V) | ΔVREF/ΔVKA | -0.2 | -2 | mV/V | IKA=1mA, ΔVKA=36V~10V | 5 | |
| Reference input current | IREF | 0.03 | 0.3 | μA | IKA=1mA, R1=10KΩ, R2=∝ | 5 | |
| Reference input current deviation over temperature | ΔIREF | 0.03 | 0.1 | μA | IKA=1mA, R1=10KΩ, R2=∝, TA=-40 ~150℃ | 5 | |
| Off-state cathode current | IKA (OFF) | 0.05 | 1 | μA | VKA=36V, VREF=0 | 5 | |
| Cathode voltage (recommended) | VKA | 36 | V | 4 | |||
| Cathode current (recommended) | IKA | 0.035 | 80 | mA | 4 | ||
| Operating ambient temperature (recommended) | TA | -40 | 85 | ℃ | 4 | ||
| Cathode voltage (absolute maximum) | VKA | 36 | V | 4 | |||
| Cathode current, continuous (absolute maximum) | IKA | -80 | 80 | mA | Continuous | 4 | |
| Reference input current range (absolute maximum) | IREF | 10 | mA | 4 | |||
| Operating ambient temperature (absolute maximum) | TA | -40 | 85 | ℃ | 4 | ||
| Junction temperature range (absolute maximum) | TJ | -40 | 150 | ℃ | 4 | ||
| Storage temperature range (absolute maximum) | TSTG | -55 | 150 | ℃ | 4 | ||
| Package thermal resistance, junction to ambient | θJA | 328 | ℃/W | SOT23 package | 4 | ||
| Package power dissipation | PD | 0.38 | W | SOT23 package | 4 |
CAD (KiCad official)
- Symbol:
ME431LAXG - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
me431laxg-etched.step/me431laxg-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);me431laxg.step/me431laxg.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MICRONE datasheet (12 pp, sha256
457fc184932523b0, retrieved 2026-09-21, 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 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).