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Contents

README

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MC33269DTRKG

onsemi · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · DPAK

MC33269DTRKG from onsemi, in a DPAK. 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 GND/Adj input Ground pin for fixed-output versions, or Adjust feedback pin for the adjustable version. On the adjustable variant, the regulator servos this pin to be 1.25 V (VRef) below Vout via an external resistor divider; adjust-pin bias current IAdj is typically <120 µA.
2 Vout power_out Regulated output. Requires an external output capacitor ≥10 µF (ESR 0.2-10 Ω) for stability. Delivers >800 mA with typical 1.0 V dropout; internally current-limited (~800 mA) and thermally protected (~170 °C shutdown).
3 Vin power_in Unregulated positive supply input, absolute max 20 V. Recommended input bypass capacitor (0.33 µF tantalum/ceramic or larger) is advised for transient response and when long supply leads are used.
4 Vout (Tab) power_out Exposed heatsink tab on the DPAK package, internally bonded to Pin 2 (Vout). Solder to a copper heatspreader for thermal dissipation; θJC = 6.0 °C/W, θJA down to ~50 °C/W with adequate copper.

Key specifications

Parameter Value
Manufacturer onsemi
Package DPAK
Category PMIC
Pins 4

Ordering variants

Same part, different packaging or reel option.

  • MC33269DTRKG
  • MC33269DTRKGDT-3.3
  • MC33269DTRK-3.3
  • MC33269DTRKGDT-5.0
  • MC33269DTRK-5.0
  • MC33269DTRKGDT-012
  • MC33269DTRK-012
  • MC33269DTRKGD
  • MC33269DTRKGD-3.3
  • MC33269DTRKGD-5.0
  • MC33269DTRKGD-012
  • MC33269DTRKGST
  • MC33269DTRKGST-3.3
  • MC33269DTRKGT
  • MC33269DTRKGT-3.3
  • MC33269DTRKGT-3.5
  • MC33269DTRKGT-5.0
  • MC33269DTRKGT-012

CAD (KiCad official)

  • Symbol: MC33269DTRKG
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: DPAK (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: onsemi datasheet (12 pp, sha256 7da97e1b6ac366c1, retrieved 2026-08-17, tier: manufacturer)
  • 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