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LHR3050AFMA

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Legendsemi Voltage Reference, MSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LHR3050AFMA

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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lhr3050afma.step / lhr3050afma.glb are 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, primary claude-sonnet-5-5 (text), consensus claude-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).

Datasheet PDF