component
LHR3050AFMA
Public Made by Adomby adom
Legendsemi Voltage Reference, MSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownLHR3050AFMA
Legendsemi · Voltage Reference · MSOP-8
LHR3050AFMA from Legendsemi, in a MSOP-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; leave this pin unconnected. |
| 2 | VIN | power_in | Supply voltage input, VOUT + 0.2V minimum (2.7V minimum for VOUT above 2.5V per datasheet note) to 18V maximum, with a 1µF to 10µF bypass capacitor recommended close to the pin. |
| 3 | TEMP | output | Temperature monitor pin giving a voltage of 692mV typical at 25°C with 2.08mV/°C sensitivity; high output impedance, so buffer it, and it does not affect VOUT accuracy. |
| 4 | GND | power_in | Ground. |
| 5 | NC | unconnected | No internal connection. |
| 6 | VOUT | power_out | Reference voltage output of 5.0V for LHR3050, sources and sinks up to ±10mA, and needs a 1µF to 50µF output capacitor to GND. |
| 7 | DNC | unconnected | Do not connect; leave this pin unconnected. |
| 8 | DNC | unconnected | Do not connect; leave this pin unconnected. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Legendsemi |
| Package | MSOP-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 |
|---|---|---|---|---|---|---|---|
| Output voltage | VOUT | 5 | V | LHR3050, 2.7V<VIN<18V | 5 | ||
| Initial accuracy, high grade | -0.05 | 0.05 | % | High grade, all voltage options | 5 | ||
| Output voltage temperature drift, high grade MSOP-8 | δVOUT/dT | 1 | 5 | ppm/°C | High grade (MSOP-8) | 5 | |
| Line regulation | δVO(δVI) | 0.7 | 1 | ppm/V | VIN = (VOUT + 0.2) to 18V | 5 | |
| Line regulation over temperature | δVO(δVI) | 1 | ppm/V | VIN = VOUT + 0.2V, TA = -40°C to 125°C | 5 | ||
| Load regulation | δVO(δIL) | 20 | 30 | ppm/mA | -10mA < ILOAD < 10mA, VIN = VOUT + 0.75V | 5 | |
| Load regulation over temperature | δVO(δIL) | 50 | ppm/mA | -10mA < ILOAD < 10mA, VIN = VOUT + 0.75V, TA = -40°C to 125°C | 5 | ||
| Quiescent current | 0.8 | 1 | mA | 6 | |||
| Quiescent current over temperature | 1.2 | mA | TA = -40°C to 125°C | 6 | |||
| Supply voltage | Vs | 18 | V | Min VOUT + 0.2 | 6 | ||
| Specified temperature range | -40 | 125 | °C | 6 | |||
| Operating temperature range | -55 | 125 | °C | 6 | |||
| Input voltage (absolute maximum) | -0.2 | 18 | V | 4 | |||
| Output short circuit to ground (absolute maximum) | 0 | 70 | mA | 4 | |||
| Operating temperature (absolute maximum) | -55 | 125 | °C | 4 | |||
| Junction temperature | TJ max | 150 | °C | 4 | |||
| Storage temperature | Tstg | -65 | 150 | °C | 4 | ||
| ESD HBM | V(ESD) | -3000 | 3000 | V | ANSI/ESDA/JEDEC JS-001 | 4 | |
| ESD CDM | V(ESD) | -1000 | 1000 | V | JEDEC JESD22-C101 | 4 | |
| Input voltage (recommended) | VIN | 18 | V | Min VOUT + 0.2V | 5 | ||
| Output current (recommended) | IOUT | -10 | 10 | mA | 5 | ||
| Junction-to-ambient thermal resistance, MSOP | RθJA | 115 | °C/W | 8-pin MSOP | 5 | ||
| Junction-to-case (top) thermal resistance, MSOP | RθJC(top) | 63.4 | °C/W | 8-pin MSOP | 5 | ||
| Junction-to-board thermal resistance, MSOP | RθJB | 57.1 | °C/W | 8-pin MSOP | 5 | ||
| Junction-to-top characterization parameter, MSOP | ψJT | 15.4 | °C/W | 8-pin MSOP | 5 | ||
| Junction-to-board characterization parameter, MSOP | ψJB | 56.2 | °C/W | 8-pin MSOP | 5 | ||
| Output voltage noise | 1.5 | µVPP/V | F=0.1Hz to 10Hz | 5 | |||
| Short-circuit current | ISC | 60 | mA | VOUT = 0 | 5 | ||
| Thermal hysteresis, high grade MSOP-8, cycle 1 | 90 | ppm | High grade MSOP-8 cycle 1 | 5 | |||
| Thermal hysteresis, high grade MSOP-8, cycle 2 | 60 | ppm | High grade MSOP-8 cycle 2 | 6 | |||
| Long-term stability, MSOP-8, 0 to 1000 h | 50 | ppm/1000 h | MSOP-8 0 到 1000 小时 | 6 | |||
| Long-term stability, MSOP-8, 1000 to 2000 h | 25 | ppm/1000 h | MSOP-8 1000 到 2000 小时 | 6 | |||
| TEMP pin output voltage | 692 | mV | TA=25°C | 6 | |||
| TEMP pin temperature sensitivity | 2.08 | mV/°C | TA = -40°C to 125°C | 6 |
CAD (KiCad official)
- Symbol:
LHR3050AFMA - Footprint:
Package_SO:MSOP-8_3x3mm_P0.65mm - 3D model: MSOP-8 (KiCad packages3D, STEP)
- 3D model files:
lhr3050afma-etched.step/lhr3050afma-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lhr3050afma.step/lhr3050afma.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Legendsemi datasheet (14 pp, sha256
ff3d9553c635cfa9, retrieved 2026-10-23, 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-sonnet-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).