component

SGM3209YS8G

Public Made by Adom

by adom

SGMICRO DC-DC Converters, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SGM3209YS8G

SGMICRO · DC-DC Converters · SOIC-8

SGM3209YS8G from SGMICRO, in a SOIC-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 NC unconnected No connection.
2 CFLY+ passive Positive terminal of the flying capacitor, which connects to the external CFLY (10µF in the typical application).
3 GND power_in Ground reference for the device.
4 CFLY- passive Negative terminal of the flying capacitor, which connects to the external CFLY (10µF in the typical application).
5 OUT power_out Output pin that delivers the generated negative supply (-3V to -18V for an input of 3V to 18V), rated up to 100mA.
6 EN input Enable control pin: logic high enables the chip and logic low shuts it down; it has an internal 600kΩ pull-low resistor.
7 RP passive Switching frequency setting pin; connect one resistor (RSET) between RP and GND, located very close to the pin, to program the frequency from 120kHz to 1.25MHz.
8 IN power_in Power input pin, with an input voltage range of 3V to 18V (absolute maximum -0.3V to 22V to GND).

Key specifications

Parameter Value
Manufacturer SGMICRO
Package SOIC-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
Input Voltage Range VIN 3 18 V 2
Operating Temperature Range -40 85 ℃ 2
Input Voltage Range VIN 3 18 V Full (-40℃ to +85℃) 4
Maximum Output Current Range at OUT Pin IOUT 100 mA +25℃ 4
Output Voltage Ripple VPP 250 mVP-P IOUT = 100mA, RP Floating, +25℃ 4
Output Voltage Ripple VPP 40 mVP-P IOUT = 100mA, RSET = 82kΩ, +25℃ 4
Output Voltage Ripple VPP 35 mVP-P IOUT = 100mA, RSET = 0Ω, +25℃ 4
Quiescent Current IQ 0.9 1.4 mA RP Floating, IOUT = 0mA, +25℃ 4
Quiescent Current IQ 4.3 5.5 mA RSET = 82kΩ, IOUT = 0mA, +25℃ 4
Quiescent Current IQ 5.3 7 mA RSET = 0Ω, IOUT = 0mA, +25℃ 4
Shutdown Mode Quiescent Current IQ 0.5 1.2 μA Shutdown Mode, VEN = 0V, +25℃ 4
Internal Switching Frequency fOSC 100 120 145 kHz RP Floating, +25℃ 4
Internal Switching Frequency fOSC 850 1000 1160 kHz RSET = 82kΩ, +25℃ 4
Internal Switching Frequency fOSC 1050 1250 1520 kHz RSET = 0Ω, +25℃ 4
Impedance RO 15 19 Ω IOUT = 20mA, RP Floating, +25℃ 4
Impedance RO 23 38 Ω IOUT = 20mA, RSET = 82kΩ, +25℃ 4
Impedance RO 33 57 Ω IOUT = 20mA, RSET = 0Ω, +25℃ 4
EN Logic Level High VIH 1.4 V VIN = 3V to 18V, Full (-40℃ to +85℃) 4
EN Logic Level Low VIL 0.6 V VIN = 3V to 18V, Full (-40℃ to +85℃) 4
EN Internal Pull Low Resistance RPULL-LOW 600 kΩ +25℃ 4
Thermal Shutdown Temperature TSHDN 150 ℃ 4
Thermal Shutdown Hysteresis ΔTSHDN 20 ℃ 4
IN to GND VIN -0.3 22 V 2
OUT to GND VOUT 0.3 V Min printed as -(VIN + 0.3V) 2
EN, RP to GND -0.3 6 V 2
Junction Temperature TJ 150 ℃ 2
Storage Temperature Range TSTG -65 150 ℃ 2
Lead Temperature (Soldering) 260 ℃ 10s 2

CAD (KiCad official)

  • Symbol: SGM3209YS8G
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: sgm3209ys8g-etched.step / sgm3209ys8g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sgm3209ys8g.step / sgm3209ys8g.glb are the bare package body.

Provenance

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

  • Datasheet: SGMICRO datasheet (12 pp, sha256 d1a99397bd000a59, retrieved 2026-10-17, 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