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LHR3050AFAA

Public Made by Adom

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

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LHR3050AFAA

Legendsemi · Voltage Reference · SOP-8

LHR3050AFAA 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 this pin (DNC).
2 VIN power_in Supply voltage input; VIN must be at least VOUT + 0.2V and no more than 18V, with a 2.7V minimum for VOUT of 2.5V or less.
3 TEMP output Temperature monitor output with high output impedance, giving VTEMP = 668mV + 1.91mV/°C × T (accuracy about ±15°C), so low-impedance loads must be buffered.
4 GND power_in Ground reference pin; the output capacitor (1μF to 50μF) must be connected from VOUT to GND.
5 NC unconnected No internal connection (NC).
6 VOUT output Voltage reference output, rated for ±10mA source and sink current, requiring a 1μF to 50μF output capacitor to GND.
7 DNC unconnected Do not connect this pin (DNC).
8 DNC unconnected Do not connect this pin (DNC).

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
初始精度：高等级 -0.05 0.05 % 所有电压选项（1） 5
输出电压温漂 高等级 δVOUT/dT 1 3 ppm/°C 高等级 5
线性调整率 δVO(δVI) 0.1 1 ppm/V VIN = (VOUT + 0.2) 至 18V（2） 5
线性调整率 TA=-40°C 至 125°C δVO(δVI) 0.2 1 ppm/V VIN = VOUT + 0.2V， TA = -40°C 至 125°C（2） 5
负载调整率 δVO(δIL) 20 30 ppm/mA -10mA < ILOAD < 10mA， VIN = VOUT + 0.75V（3） 5
负载调整率 TA=-40°C 至 125°C δVO(δIL) 50 ppm/mA -10mA < ILOAD < 10mA， VIN = VOUT + 0.75V TA = -40°C 至 125°C（3） 6
热迟滞 高等级 SOP-8 周期 1 VHYST 70 ppm 高等级 SOP-8 周期 1 6
热迟滞 高等级 SOP-8 周期 2 VHYST 50 ppm 高等级 SOP-8 周期 2 6
长期稳定性 SOP-8 0 到 1000 小时 LTD 100 ppm/1000 小时 SOP-8 0 到 1000 小时 6
长期稳定性 SOP-8 1000 到 2000 小时 LTD 50 ppm/1000 小时 SOP-8 1000 到 2000 小时 6
电源电压 Vs 18 V 请参阅注释 6
静态电流 IQ 0.8 1 mA 6
静态电流 TA=-40°C 至 125°C IQ 1.2 mA TA = -40°C 至 125°C 6
输入电压 VIN -0.2 18 V 4
输出对地短路 0 30 mA 4
输出电压范围 -0.2 5.5 V 4
工作温度 -55 125 °C 4
结温（TJ 最大值） TJ 150 °C 4
贮存温度 Tstg -65 150 °C 4
输入电压（推荐） VIN 18 V 5
输出电流（推荐） IOUT -10 10 mA 5
短路电流 ISC 25 mA VOUT = 0 6
输出电压 VOUT 5 V 2.7V<VIN<18V 5
输出电压噪声 1.5 µVPP/V F=0.1Hz 至 10Hz 5
TEMP 引脚电压输出 668 mV 在 TA=25°C 时 6
TEMP 引脚温度敏感性 1.91 mV/°C TA = -40°C 至 125°C 6
结至环境热阻 RθJA (SOP) RθJA 160.9 °C/W DGK (SOP) 8 引脚 5
结至外壳（顶部）热阻 RθJC(top) (SOP) RθJC(top) 53.9 °C/W DGK (SOP) 8 引脚 5
结至电路板热阻 RθJB (SOP) RθJB 82.3 °C/W DGK (SOP) 8 引脚 5
结至顶部特征参数 ψJT (SOP) ψJT 5.1 °C/W DGK (SOP) 8 引脚 5
结至电路板特征参数 ψJB (SOP) ψJB 80.7 °C/W DGK (SOP) 8 引脚 5

CAD (KiCad official)

  • Symbol: LHR3050AFAA
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: lhr3050afaa-etched.step / lhr3050afaa-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lhr3050afaa.step / lhr3050afaa.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Legendsemi datasheet (14 pp, sha256 a5ef983cd4f79fdb, retrieved 2026-10-27, 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-haiku-5-5 (text), consensus off (skipped (clean text read)), 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