component
LHR3020BFAA
Public Unreviewedby Ray
Legendsemi Voltage Reference, SOP-8. Datasheet-verified pinout, 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
markdownLHR3020BFAA
Legendsemi · Voltage Reference · SOP-8
LHR3020BFAA from Legendsemi, in a SOP-8. 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 | DNC | unconnected | Do Not Connect. Reserved/internal test pin; must be left electrically floating on the PCB. Do not tie to GND, VIN, or any signal. |
| 2 | VIN | power_in | Positive supply input. Operating range VOUT+0.2V to 18V (LHR3020: VIN min = VOUT+0.2V; other variants ≥2.7V). Absolute maximum -0.2V to 18V. Bypass with 1 µF to 10 µF placed close to the pin. |
| 3 | TEMP | output | Temperature-monitor analog output. High-impedance node following VTEMP = 668 mV + 1.91 mV/°C × T; accuracy ≈ ±15°C. Buffer with a low-drift op-amp when driving low-impedance loads to avoid measurement error; loading this pin does not affect VOUT accuracy. |
| 4 | GND | power_in | Device ground / 0 V reference return for VIN, VOUT, and TEMP. |
| 5 | NC | unconnected | No Internal Connection. Pin is not bonded internally; may be left floating or tied to a plane at the designer's discretion. |
| 6 | VOUT | power_out | Precision reference voltage output. Nominal 2.048 V for LHR3020, initial accuracy ±0.1% (B-grade), drift 8 ppm/°C max. Sinks/sources up to ±10 mA. Must be decoupled to GND with a 1 µF to 50 µF output capacitor. |
| 7 | DNC | unconnected | Do Not Connect. Reserved/internal test pin; must be left electrically floating on the PCB. |
| 8 | DNC | unconnected | Do Not Connect. Reserved/internal test pin; must be left electrically floating on the PCB. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Legendsemi |
| Package | SOP-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
Ordering variants
Same part, different packaging or reel option.
LHR3020BFAALHR3020BFAAAFAALHR3020BFAABFMALHR3020BFAAAFMA
CAD (KiCad official)
- Symbol:
LHR3020BFAA - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Legendsemi datasheet (None pp, sha256
a5ef983cd4f79fdb, retrieved 2026-08-17, 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:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).