component
LTL431AKLT1G
Public Made by Adomby adom
LRC 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
markdownLTL431AKLT1G
LRC · Voltage Reference · SOT-23
LTL431AKLT1G from LRC, in a SOT-23. 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 | CATHODE | passive | Cathode (K) of the programmable shunt reference; output voltage settable from Vref (approx. 2.5V) to 36V (VKA max 36V), with cathode current of 0.1mA to 100mA. |
| 2 | REF | input | Reference (R) input that sets the regulated cathode voltage via an external resistor divider; typical Vref is 2.5V and reference input current range is -0.05 to +10mA. |
| 3 | ANODE | power_in | Anode (A) of the shunt reference, normally connected to ground, as the return for cathode current. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LRC |
| 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 Input Voltage (1%, Vref 2 class) | Vref | 2.47 | 2.495 | 2.52 | V | VKA=VREF, IKA=10mA | 2 |
| Deviation of reference input voltage over temperature | Vref | 8 | 17 | mV | VKA=VREF, IKA=10mA, TMIN~TMAX | 2 | |
| Ratio of change in reference input voltage to change in cathode voltage | Vref/VKA | -2.7 | mV/V | IKA=10mA, VKA=10V~VREF | 2 | ||
| Ratio of change in reference input voltage to change in cathode voltage | Vref/VKA | -1 | mV/V | IKA=10mA, VKA=36V~10V | 2 | ||
| Dynamic impedance | ZKA | 0.1 | 0.37 | Ω | VKA=VREF, IKA=0.2 to 100mA, f 1.0kHz | 2 | |
| Cathode current (continuous) range | IKA | -100 | 150 | mA | Continuous | 2 | |
| Reference input current range | Iref | -0.05 | 10 | mA | 2 | ||
| Operating junction temperature | Tj | 150 | °C | 2 | |||
| Storage temperature | Tstg | -65 | 150 | °C | 2 | ||
| Cathode current | IKA | 100 | mA | 2 | |||
| Cathode voltage (settable range) | VKA | 36 | V | 1 | |||
| Operating ambient temperature range | Topr | -40 | 125 | °C | 2 | ||
| Thermal resistance, junction to ambient | θJA | 206 | °C/W | 2 | |||
| Excellent temperature coefficient | 25 | ppm/°C | 1 |
CAD (KiCad official)
- Symbol:
LTL431AKLT1G - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
ltl431aklt1g-etched.step/ltl431aklt1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ltl431aklt1g.step/ltl431aklt1g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LRC datasheet (5 pp, sha256
aad953baa92b0920, retrieved 2026-10-17, 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).