component
LM285M3-2.5
Public Made by Adomby adom
HGSEMI Voltage Reference, SOT-23-3. 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
markdownLM285M3-2.5
HGSEMI · Voltage Reference · SOT-23-3
LM285M3-2.5 from HGSEMI, in a SOT-23-3. 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 | CATHODE | passive | Cathode of the LM285 reference diode (阴极); the datasheet gives no pin-specific limits, only the device absolute ratings of 30 mA reverse current and 10 mA forward current. |
| 2 | ANODE | passive | Anode of the LM285 reference diode (阳极); the datasheet gives no pin-specific limits, only the device absolute ratings of 30 mA reverse current and 10 mA forward current. |
| 3 | NC | unconnected | Internally not connected (内部无连接) on the SOT-23 package. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI |
| Package | SOT-23-3 |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse breakdown voltage | 2.425 | 2.5 | 2.575 | V | Ta=25℃, 100µA≤IR≤20mA | 4 | |
| Minimum operating current | 100 | 130 | µA | 4 | |||
| Reverse breakdown voltage change with current | 1.5 | 2.5 | mV | 100µA ≤ IR≤1mA | 4 | ||
| Reverse breakdown voltage change with current | 20 | 25 | mV | 1mA≤IR≤20mA | 4 | ||
| Reverse current | 30 | mA | 3 | ||||
| Forward current | 10 | mA | 3 | ||||
| Operating temperature range | -40 | 85 | ℃ | 3 | |||
| Storage temperature | -55 | 150 | ℃ | 3 | |||
| Soldering temperature | 260 | ℃ | 点焊，10 秒 | 3 | |||
| Average temperature coefficient | 80 | 150 | ppm/℃ | IR = 100 µA | 4 | ||
| Reverse dynamic impedance | 1 | Ω | IR=100µA, f=20Hz | 4 | |||
| Wideband noise (rms) | 120 | µV | IR=100µA, 10Hz≤f≤10kHz | 4 | |||
| Long-term stability | 20 | ppm | IR=100µA, T=1000Hr, TA=25°C±0.1°C | 4 |
CAD (KiCad official)
- Symbol:
LM285M3-2.5 - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files:
lm285m3-2-5-etched.step/lm285m3-2-5-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm285m3-2-5.step/lm285m3-2-5.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HGSEMI datasheet (13 pp, sha256
669d45f8440f41b2, retrieved 2026-10-17, 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).