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SGM2203-3.3YK3LG

Public Made by Adom

by adom

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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SGM2203-3.3YK3LG

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

SGM2203-3.3YK3LG 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 GND power_in Ground pin; the GND pin must be connected to the ground plane for proper heat dissipation.
2 VIN power_in Regulator input with up to 36V input voltage; at least a 1μF supply bypass capacitor is recommended.
3 VOUT power_out Regulator output; recommended output capacitor range is 1μF to 10μF.

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
Input Voltage VIN 2.7 36 V VOUT = 3.3V to 12V, +25℃ 5
Output Voltage Accuracy 3 % IOUT = 1mA, +25℃ 5
Ground Pin Current 4.5 μA No load 5
Maximum Output Current 150 mA VIN = VOUT + 2V or 4V, whichever is greater, +25℃ 5
Dropout Voltage VDROP 1300 mV IOUT = 150mA, VOUT ≥ 3.3V, +25℃ 5
Operating Temperature Range TA -40 85 ℃ 3
VIN to GND VIN -0.3 44 V 3
VOUT to GND VOUT -0.3 V Upper limit printed as Min(VIN + 0.3V, 15V) 3
Power Dissipation SOT-89-3 PD 0.625 W TA = 25℃ 3
Junction Temperature TJ 150 ℃ 3
Storage Temperature Range TSTG -65 150 ℃ 3
Lead Temperature (Soldering) 260 ℃ Soldering, 10s 3
Line Regulation 0.005 %/V VOUT = 0.8V to 5V, VIN = VOUT + 2V or 4V to 32V, IOUT = 1mA, +25℃ 5
Load Regulation ΔVOUT 10 mV VOUT = 0.8V to 5V, VIN = VOUT + 2V or 4V to 32V, IOUT = 1mA to 150mA, +25℃ 5
Power Supply Rejection Ratio PSRR 65 dB f = 217Hz, VOUT = 3.3V, IOUT = 10mA, +25℃ 5
Power Supply Rejection Ratio PSRR 50 dB f = 1kHz, VOUT = 3.3V, IOUT = 10mA, +25℃ 5
Output Voltage Noise en 220 μVRMS f = 10Hz to 100kHz, VOUT = 3.3V, IOUT = 10mA, +25℃ 5
Thermal Shutdown Temperature TSHDN 150 ℃ 5
Thermal Shutdown Hysteresis ΔTSHDN 20 ℃ 5

CAD (KiCad official)

  • Symbol: SGM2203-3.3YK3LG
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3 (KiCad packages3D, STEP)
  • 3D model files: sgm2203-3-3yk3lg-etched.step / sgm2203-3-3yk3lg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sgm2203-3-3yk3lg.step / sgm2203-3-3yk3lg.glb are the bare package body.

Provenance

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

  • Datasheet: SGMICRO datasheet (12 pp, sha256 c7cbdce912f6c6f4, 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