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Ray Publish 0.1.0 5e67e6d 5h ago

SGM4027-2.5XN3LG

SGMICRO · Voltage Reference · SOT-23

SGM4027-2.5XN3LG from SGMICRO, in a SOT-23. 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 IN power_in Power supply input, which must be operated between (VREF + 0.2V) and 5.5V, with a 0.47μF low-ESR bypass capacitor recommended at this pin for stability.
2 OUT output Reference voltage output, which requires a 2μF to 22μF capacitor and is rated for a maximum load current of 10mA.
3 GND power_in Ground reference pin.

Key specifications

Parameter Value
Manufacturer SGMICRO
Package SOT-23
Category Power Management (PMIC)
Pins 3

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 -0.1 0.1 % 4
Solder Heat Resistance Shift -0.03 0.03 % 4
Output Voltage Noise 8.9 μVPP/V f = 0.1Hz to 10Hz 4
Output Voltage Temperature Drift dVOUT/dT 10 35 ppm/℃ -40℃ ≤ TA ≤ +125℃ 5
Load Regulation ΔVO(ΔIL) 5 15 ppm/mA -10mA < ILOAD < 10mA 5
Dropout Voltage VIN - VOUT 5 200 mV 5
Quiescent Current IQ 245 320 µA 5
Quiescent Current IQ 340 µA -40℃ ≤ TA ≤ +125℃ 5
Power Supply Range VCC 3 5.5 V 5
Output Voltage Noise 29.8 µVRMS f = 10Hz to 10kHz 4
Output Voltage Noise Density 273 nV/√Hz f = 1kHz 4
Line Regulation 4 ppm/V VREF + 0.5V ≤ VIN ≤ 5.5V 4
Long-Term Stability 120 ppm 0h to 1000h, IOUT = 0mA 5
Long-Term Stability 20 ppm 1000h to 2000h, IOUT = 0mA 5
Thermal Hysteresis dT 150 ppm 5
Short-Circuit Current ISC 25 mA 5
Turn-On Settling Time 800 μs To 0.1% with CLOAD = 2.2μF 5
Input Voltage VIN 5.5 V IO = 0mA; minimum printed as MAX(VREF + 0.2V, 3.0V) 2
Load Current ILOAD 10 mA 2
Operating Temperature Range -40 125 ℃ 2
Stable Output Load Capacitance CLOAD 2 22 μF Stable output CLOAD range 1
Junction Temperature 150 ℃ 2
Storage Temperature Range -65 150 ℃ 2
Lead Temperature (Soldering) 260 ℃ 10s 2
Package Thermal Resistance SOT-23 θJA 254 ℃/W SOT-23 2

CAD (KiCad official)

  • Symbol: SGM4027-2.5XN3LG
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: sgm4027-2-5xn3lg-etched.step / sgm4027-2-5xn3lg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sgm4027-2-5xn3lg.step / sgm4027-2-5xn3lg.glb are the bare package body.

Provenance

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

  • Datasheet: SGMICRO datasheet (17 pp, sha256 1c79af7b8fce4ac2, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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