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XC6503D331MR-G

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by Ray

Torex Semicon Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-25. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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XC6503D331MR-G

Torex Semicon · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-25

XC6503D331MR-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 VIN power_in Regulator power input. Operating range 1.7V to 6.0V (absolute max Vss-0.3V to Vss+6.5V). Bypass with 0.1uF ceramic capacitor to VSS.
2 VSS power_in Ground reference for the regulator.
3 CE input Chip enable (ON/OFF control). For D-type: L or OPEN = OFF, H = ON. VCEH >= 1.0V (max 6.0V); VCEL <= 0.3V. Avoid leaving open; tie to a defined voltage. Internal pull-down resistor to VSS is present on the D-type.
4 NC unconnected No internal connection. Leave floating or tie to VSS.
5 VOUT power_out Regulated 3.3V output. Delivers up to 500mA (typ current limit 630mA). Cap-less operation supported; optional 0.1uF ceramic C_L improves transient behavior. D-type discharges C_L via internal switch (R_DCHG ~430 ohm typ) when disabled.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • XC6503D331MR-G
  • XC6503D331MR-GGR-G
  • XC6503D331MR-GPR-G

CAD (KiCad official)

  • Symbol: XC6503D331MR-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 8c83f244dbc8e69f, 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