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SGM2019-3.0YN5G

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SGMICRO Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SGM2019-3.0YN5G

SGMICRO · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5

SGM2019-3.0YN5G from SGMICRO, in a SOT-23-5. 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 Regulator input; supply voltage can range from 2.5V to 5.5V, and it should be bypassed with a 1μF capacitor to GND.
2 GND power_in Ground pin.
3 EN input Shutdown input; a logic low reduces the supply current to 10nA, and it should be connected to IN for normal operation.
4 BP passive Reference-noise bypass for the fixed-voltage version only; bypass with a low-leakage 0.01μF ceramic capacitor for reduced output noise.
5 OUT power_out Regulator output.

Key specifications

Parameter Value
Manufacturer SGMICRO
Package SOT-23-5
Category Power Management (PMIC)
Pins 5

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 Accuracy -2.5 2.5 % IOUT = 0.1mA, +25℃ 3
Maximum Output Current (SOT-23-5) 300 mA SOT-23-5 3
Current Limit ILIM 310 500 mA +25℃ 3
Ground Pin Current IQ 100 200 µA No load, EN = 2V, +25℃ 3
Dropout Voltage 270 400 mV IOUT = 300mA, +25℃ 3
Dropout Voltage 0.9 mV IOUT = 1mA 3
Line Regulation ΔVLNR 0.02 0.05 %/V VIN = 2.5V or (VOUT + 0.5V) to 5.5V, IOUT = 1mA, +25℃ 3
Load Regulation (VOUT > 2V) ΔVLDR 0.002 0.005 %/mA IOUT = 0.1mA to 300mA, COUT = 1µF, VOUT > 2V 3
EN Input Threshold High VIH 1.5 V VIN = 2.5V to 5.5V, VEN = -0.3V to VIN, Full (-40℃ to +85℃) 3
EN Input Threshold Low VIL 0.3 V VIN = 2.5V to 5.5V, VEN = -0.3V to VIN, Full (-40℃ to +85℃) 3
EN Input Bias Current IB(SHDN) 0.01 1 µA EN = 0V or EN = 5.5V, +25℃ 3
Input Voltage VIN 2.5 5.5 V +25℃ 3
Operating Temperature Range -40 85 ℃ 2
IN to GND -0.3 6 V IN to GND 2
EN to GND EN -0.3 V EN to GND; upper limit printed as VIN 2
OUT, BP/FB to GND -0.3 V OUT, BP/FB to GND; upper limit printed as (VIN + 0.3V) 2
Power Dissipation (SOT-23-5) PD 0.4 W TA = 25℃, SOT-23-5 2
Junction Temperature 150 ℃ 2
Storage Temperature Range -65 150 ℃ 2

CAD (KiCad official)

  • Symbol: SGM2019-3.0YN5G
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: sgm2019-3-0yn5g-etched.step / sgm2019-3-0yn5g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sgm2019-3-0yn5g.step / sgm2019-3-0yn5g.glb are the bare package body.

Provenance

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

  • Datasheet: SGMICRO datasheet (16 pp, sha256 3ce81b5d18d55e0e, 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