component

XC9221C09AMR-G

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by Ray

Torex Semicon DC-DC Converters, SOT-25. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Datasheet

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Contents

README

markdown

XC9221C09AMR-G

Torex Semicon · DC-DC Converters · SOT-25

XC9221C09AMR-G from Torex Semicon, in a SOT-25. 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 CE/CSS input Chip Enable / Soft-Start input. Drive HIGH (VCEH >= 1.2V) to enable operation, LOW (VCEL <= 0.3V) to disable. Below 2.3V UVLO threshold the external P-ch MOSFET is forced OFF.
2 VSS power_in Ground reference for the controller.
3 FB input Output voltage feedback sense. Connect a resistor divider from VOUT such that VFB = 0.9V (typ) at the desired output voltage: VOUT = 0.9 x (RFB1 + RFB2) / RFB2. Absolute max -0.3 to +18.0 V.
4 EXT/ output External P-channel MOSFET gate drive output (active-low, indicated by the trailing slash). REXTBH ~10 Ohm (high), REXTBL ~12 Ohm (low). Absolute max current +/-100 mA; voltage -0.3 to VIN+0.3.
5 VIN power_in Main power supply input. Operating range 2.8V to 16.0V; absolute max -0.3 to +18.0V. UVLO forces the external P-ch driver OFF when VIN falls below ~2.3V (typ).

Key specifications

Parameter Value
Manufacturer Torex Semicon
Package SOT-25
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • XC9221C09AMR-G
  • XC9221C09AMR-GER
  • XC9221C09AMR-GER-G

CAD (KiCad official)

  • Symbol: XC9221C09AMR-G
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-25 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Torex Semicon datasheet (22 pp, sha256 f65223dadc34bf3e, 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