component
LHR3045AFAA
Public Made by Adomby adom
Legendsemi Voltage Reference, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
| Name | Last updated |
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| docs | 22d ago |
| viewers | 22d ago |
| lhr3045afaa-etched.glb | 22d ago |
| lhr3045afaa-etched.step | 22d ago |
| lhr3045afaa-hero.glb | 22d ago |
| lhr3045afaa-hero.overlay.json | 22d ago |
| lhr3045afaa.glb | 22d ago |
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LHR3045AFAA
Legendsemi · Voltage Reference · SOP-8
LHR3045AFAA from Legendsemi, in a SOP-8. 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 | DNC | unconnected | Do not connect; the datasheet specifies this pin must be left unconnected. |
| 2 | VIN | power_in | Supply voltage input, which must be at least VOUT + 0.2 V and no more than 18 V (VIN minimum is 2.7 V for VOUT ≤ 2.5 V, and the absolute maximum input range is -0.2 V to 18 V). |
| 3 | TEMP | output | Temperature monitor output giving 668 mV + 1.91 mV/°C × T (about ±15 °C accuracy) at high output impedance, so low-impedance loads need a buffer amplifier. |
| 4 | GND | power_in | Ground reference; the 1 µF to 50 µF output capacitor must be connected from VOUT to GND. |
| 5 | NC | unconnected | No internal connection on this pin. |
| 6 | VOUT | power_out | Reference voltage output that sources and sinks up to ±10 mA (IOUT -10 to 10 mA), requires a 1 µF to 50 µF capacitor to GND, and must not be shorted to the supply when VIN is above 5.5 V. |
| 7 | DNC | unconnected | Do not connect; the datasheet specifies this pin must be left unconnected. |
| 8 | DNC | unconnected | Do not connect; the datasheet specifies this pin must be left unconnected. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Legendsemi |
| Package | SOP-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Initial accuracy, high grade (A) | -0.05 | 0.05 | % | 所有电压选项（1） | 5 | ||
| Output voltage temperature drift, high grade | δVOUT/dT | 1 | 3 | ppm/°C | 5 | ||
| Line regulation | δVO(δVI) | 0.1 | 1 | ppm/V | VIN = (VOUT + 0.2) 至 18V | 5 | |
| Line regulation over temperature | δVO(δVI) | 0.2 | 1 | ppm/V | VIN = VOUT + 0.2V, TA = -40°C 至 125°C | 5 | |
| Load regulation | 20 | 30 | ppm/mA | -10mA < ILOAD < 10mA, VIN = VOUT + 0.75V | 5 | ||
| Quiescent current | IQ | 0.8 | 1 | mA | 5 | ||
| Quiescent current over temperature | IQ | 1.2 | mA | TA = -40°C 至 125°C | 5 | ||
| Input supply voltage (recommended) | VIN | 18 | V | 5 | |||
| Output current (recommended) | IOUT | -10 | 10 | mA | 5 | ||
| Input voltage (absolute maximum) | -0.2 | 18 | V | 4 | |||
| Output short to GND | 0 | 30 | mA | 4 | |||
| Output voltage range (absolute maximum) | -0.2 | 5.5 | V | 4 | |||
| Operating temperature (absolute maximum) | -55 | 125 | °C | 4 | |||
| Junction temperature (maximum) | TJ | 150 | °C | 4 | |||
| Storage temperature | Tstg | -65 | 150 | °C | 4 | ||
| ESD human body model (HBM) | V(ESD) | -3000 | 3000 | V | ANSI/ESDA/JEDEC JS-001 | 5 | |
| ESD charged device model (CDM) | V(ESD) | -1000 | 1000 | V | JEDEC JESD22-C101 | 5 | |
| Supply voltage Vs | Vs | 18 | V | 6 | |||
| Specified temperature range | -40 | 125 | °C | 6 | |||
| Operating temperature range (working range) | -55 | 125 | °C | 6 | |||
| Output voltage (LHR3045) | VOUT | 4.5 | V | 5 | |||
| Output voltage noise | 1.5 | µVPP/V | F=0.1Hz 至 10Hz | 5 | |||
| Load regulation over temperature | δVO(δIL) | 50 | ppm/mA | -10mA < ILOAD < 10mA, VIN = VOUT + 0.75V, TA = -40°C 至 125°C | 6 | ||
| Short-circuit current | ISC | 25 | mA | VOUT = 0 | 6 | ||
| Thermal hysteresis, high grade SOP-8, cycle 1 | 70 | ppm | 高等级 SOP-8 周期 1 | 6 | |||
| Thermal hysteresis, high grade SOP-8, cycle 2 | 50 | ppm | 高等级 SOP-8 周期 2 | 6 | |||
| Long-term stability, SOP-8, 0 to 1000 hours | 100 | ppm/1000 hours | SOP-8 0 到 1000 小时 | 6 | |||
| Long-term stability, SOP-8, 1000 to 2000 hours | 50 | ppm/1000 hours | SOP-8 1000 到 2000 小时 | 6 | |||
| TEMP pin voltage output | 668 | mV | TA = 25°C | 6 | |||
| TEMP pin temperature sensitivity | 1.91 | mV/°C | TA = -40°C 至 125°C | 6 | |||
| Junction-to-ambient thermal resistance (SOP) | RθJA | 160.9 | °C/W | 5 | |||
| Junction-to-case (top) thermal resistance (SOP) | RθJC(top) | 53.9 | °C/W | 5 | |||
| Junction-to-board thermal resistance (SOP) | RθJB | 82.3 | °C/W | 5 | |||
| Junction-to-top characterization parameter (SOP) | ψJT | 5.1 | °C/W | 5 | |||
| Junction-to-board characterization parameter (SOP) | ψJB | 80.7 | °C/W | 5 |
CAD (KiCad official)
- Symbol:
LHR3045AFAA - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
lhr3045afaa-etched.step/lhr3045afaa-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lhr3045afaa.step/lhr3045afaa.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Legendsemi datasheet (14 pp, sha256
a5ef983cd4f79fdb, 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).