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SGM2205-5.0XK3G

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SGMICRO Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SGM2205-5.0XK3G

SGMICRO · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3

SGM2205-5.0XK3G from SGMICRO, in a SOT-89-3. 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 OUT power_out Regulator output pin; the datasheet recommends an output capacitor with effective capacitance of 1μF to 10μF to ensure stability.
2 GND power_in Ground pin.
3 IN power_in Input supply pin with an operating input range of 2.5V to 20V; a 1μF or larger ceramic capacitor from IN to ground is recommended for decoupling.

Key specifications

Parameter Value
Manufacturer SGMICRO
Package SOT-89-3
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
Output Voltage Accuracy (IOUT = 0.1mA, TJ = +25℃) VOUT -1 1 % IOUT = 0.1mA, TJ = +25℃ 7
Output Voltage Accuracy (IOUT = 0.1mA to 800mA) VOUT -2 2 % IOUT = 0.1mA to 800mA 7
Input Voltage Range VIN 2.5 20 V TJ = +25℃ 7
Reference Voltage (TJ = +25℃) VREF 1.188 1.2 1.212 V TJ = +25℃ 7
Reference Voltage VREF 1.176 1.224 V 7
Line Regulation (TJ = +25℃) 0.0003 0.003 %/V VIN = (VOUT(NOM) + 1V) to 20V, TJ = +25℃ 7
Line Regulation 0.005 %/V VIN = (VOUT(NOM) + 1V) to 20V 7
Load Regulation (TJ = +25℃) 0.1 0.3 % IOUT = 0.1mA to 800mA, TJ = +25℃ 7
Load Regulation 0.4 % IOUT = 0.1mA to 800mA 7
Output Current Limit ILIMIT 820 1100 mA VOUT = 93% × VOUT(NOM), TJ = +25℃ 7
Ground Pin Current IQ 80 104 µA VEN ≥ 1.2V, no load, TJ = +25℃ 7
Ground Pin Current IQ 112 µA VEN ≥ 1.2V, no load 7
Ground Pin Current IQ 220 280 µA VEN ≥ 1.2V, IOUT = 50mA, TJ = +25℃ 7
Ground Pin Current IQ 290 µA VEN ≥ 1.2V, IOUT = 50mA 7
Ground Pin Current IQ 1950 2250 µA VEN ≥ 1.2V, IOUT = 800mA, TJ = +25℃ 7
Ground Pin Current IQ 2350 µA VEN ≥ 1.2V, IOUT = 800mA 7
Ground Pin Quiescent Current (shutdown, TJ = +25℃) IQ(GND) 2.7 3.5 µA VEN ≤ 0.4V (shutdown), TJ = +25℃ 7
Ground Pin Quiescent Current (shutdown) IQ(GND) 6.8 µA VEN ≤ 0.4V (shutdown) 7
Enable Input Logic Voltage (logic low) VEN 0.4 V VEN = Logic low (regulator shutdown) 7
Enable Input Logic Voltage (logic high) VEN 1.2 V VEN = Logic high (regulator enabled) 7
Enable Input Current (IENL) IENL 1 µA VEN ≤ 0.4V 7
Enable Input Current (IENH) IENH 1 µA VEN = VIN 7
Input Voltage Range (recommended) VIN 2.5 20 V 4
Output Effective Capacitance COUT 1 10 µF 4
Operating Junction Temperature Range TJ -40 125 ℃ 4
Supply Voltage Range VIN -24 24 V 4
OUT to GND VOUT -0.3 V VIN ≥ 0V; max printed as Min(VIN + 5.5V, +24V) 4
EN to GND VEN -0.3 24 V VIN ≥ 0V 4
Power Dissipation SOT-89-3 PD 1.66 W TJ = +25℃ 4
Junction Temperature TJ 150 ℃ 4
Storage Temperature Range TSTG -65 150 ℃ 4
Lead Temperature (Soldering, 10s) 260 ℃ 10s 4
Short-Circuit Current ISHORT 230 mA VIN = VEN = 3V, VOUT = 0V 7
Output Voltage Temperature Coefficient 40 ppm/℃ 7
Thermal Shutdown Temperature TSHDN 155 ℃ 7
Thermal Shutdown Hysteresis ΔTSHDN 25 ℃ 7

CAD (KiCad official)

  • Symbol: SGM2205-5.0XK3G
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3 (KiCad packages3D, STEP)
  • 3D model files: sgm2205-5-0xk3g-etched.step / sgm2205-5-0xk3g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sgm2205-5-0xk3g.step / sgm2205-5-0xk3g.glb are the bare package body.

Provenance

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

  • Datasheet: SGMICRO datasheet (21 pp, sha256 3f5ad9a41ebaa550, 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