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UR133AG-33-AB3-B-R

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UTC Unisonic Tech Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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UR133AG-33-AB3-B-R

UTC Unisonic Tech · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89

UR133AG-33-AB3-B-R from UTC Unisonic Tech, in a SOT-89. 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 VOUT power_out Regulated output voltage; a 10μF (or larger) capacitor between VOUT and GND is recommended for stability, and the part may oscillate without it.
2 GND power_in Ground reference pin (labelled Ground/Adjustable in the datasheet); the datasheet gives no separate electrical limit for this pin.
3 VIN power_in Positive power input with an absolute maximum rating of -0.3 V to +12 V, and a 1μF (or larger) capacitor is recommended between VIN and GND.

Key specifications

Parameter Value
Manufacturer UTC Unisonic Tech
Package SOT-89
Category Power Management (PMIC)
Pins 3

CAD (KiCad official)

  • Symbol: UR133AG-33-AB3-B-R
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89 (KiCad packages3D, STEP)
  • 3D model files: ur133ag-33-ab3-b-r-etched.step / ur133ag-33-ab3-b-r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ur133ag-33-ab3-b-r.step / ur133ag-33-ab3-b-r.glb are the bare package body.

Provenance

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

  • Datasheet: UTC Unisonic Tech datasheet (8 pp, sha256 e2b32e3c477e62f3, retrieved 2026-10-09, 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