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Contents

README

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SGM6603-5.0YN6G

SGMICRO · DC-DC Converters · SOT-23-6

SGM6603-5.0YN6G from SGMICRO, in a SOT-23-6. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 SW passive Boost and rectifying switch input. Connects to the external boost inductor (typ. 4.7 µH) between VCC/input source and this pin; internal boost + synchronous rectifier MOSFETs switch this node at ~1.2 MHz with up to 1.1A switch current limit.
2 GND power_in Device ground reference. Connect to the system ground plane with a short, low-impedance return for the input and output capacitors.
3 EN input Enable input. Drive to VCC (logic high) to enable the converter or to GND (logic low) to shut it down; input thresholds scale with VCC (e.g. VIH ≥ 2.6V for 4.2V < VCC ≤ 5.0V, VIL ≤ 0.6V). EN input current is <1 µA when clamped to GND or VCC.
4 NC unconnected No Connect on the SGM6603-5.0 fixed-output variant. Leave floating; output voltage is set internally to 5.0V. (On the SGM6603-ADJ variant this pin is FB, the feedback input.)
5 VOUT power_out Boost converter output. Regulated to 5.0V (fixed) with typical output accuracy ±3.8%; connect a 10 µF ceramic output capacitor to GND. Load disconnect during shutdown allows VOUT to fall to 0V without drawing input current.
6 VCC power_in Boost converter supply voltage / input. Operating input range 0.9V to 5.5V (min start-up ~1.1-1.3V depending on load); bypass to GND with a 10 µF ceramic input capacitor. Absolute maximum is 6V.

Key specifications

Parameter Value
Manufacturer SGMICRO
Package SOT-23-6
Category PMIC
Pins 6

Ordering variants

Same part, different packaging or reel option.

  • SGM6603-5.0YN6G/TR
  • SGM6603-5.0YN6G3.3YN6G/TR
  • SGM6603-5.0YN6GADJYN6G/TR

CAD (KiCad official)

  • Symbol: SGM6603-5.0YN6G
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: sgm6603-5-0yn6g-etched.step / sgm6603-5-0yn6g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sgm6603-5-0yn6g.step / sgm6603-5-0yn6g.glb are the bare package body.

Provenance

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

  • Datasheet: SGMICRO datasheet (17 pp, sha256 9792aef0370ec40f, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF