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UZ1085L-33-TN3-R

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UTC Unisonic Tech Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2(DPAK). Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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docs uz1085l-33-tn3-r: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
viewers uz1085l-33-tn3-r: viewers · Ray 1mo ago
package.json Publish 0.1.0 · Ray 1mo ago
page.json Brief states the pinout check that actually ran (was an unconditional "Datasheet-verified pinout") · Ray 10d ago
README.md uz1085l-33-tn3-r: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 14d ago
uz1085l-33-tn3-r-etched.fit.json uz1085l-33-tn3-r: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
uz1085l-33-tn3-r-etched.glb uz1085l-33-tn3-r: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
uz1085l-33-tn3-r-etched.step uz1085l-33-tn3-r: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
uz1085l-33-tn3-r.glb Publish 0.1.0 · Ray 1mo ago
uz1085l-33-tn3-r.kicad_mod Publish 0.1.0 · Ray 1mo ago
uz1085l-33-tn3-r.kicad_sym Publish 0.1.0 · Ray 1mo ago
uz1085l-33-tn3-r.lbr uz1085l-33-tn3-r: factory component page (tier=mfr) · Ray 1mo ago
uz1085l-33-tn3-r.step Publish 0.1.0 · Ray 1mo ago

UZ1085L-33-TN3-R

UTC Unisonic Tech · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252-2(DPAK)

UZ1085L-33-TN3-R from UTC Unisonic Tech, in a TO-252-2(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 power_in Ground / common return for the fixed-voltage regulator. Internal reference and error amplifier are referenced to this pin. Tab of the TO-252 is electrically connected to this pin (GND) for the fixed-output version.
2 VOUT power_out Regulated 3.3V output (typ 3.3V, min 3.234V, max 3.366V) capable of sourcing up to 3A. Requires a 22µF output capacitor for stability. Minimum load current 10mA typical.
3 VIN power_in Unregulated input supply. Operating range for the 3.3V fixed variant is 4.8V ≤ VIN ≤ 10.3V; absolute maximum 18V. Dropout voltage is typically 1.3V at IOUT=3A. A 22µF input capacitor is recommended.

Key specifications

Parameter Value
Manufacturer UTC Unisonic Tech
Package TO-252-2(DPAK)
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • UZ1085L-33-TN3-R
  • UZ1085L-33-TN3-RTA3-T
  • UZ1085L-33-TN3-RTF3-T
  • UZ1085L-33-TN3-RTQ2-T
  • UZ1085L-33-TN3-RTQ2-R
  • UZ1085L-33-TN3-RTQ3-T
  • UZ1085L-33-TN3-RTQ3-R

CAD (KiCad official)

  • Symbol: UZ1085L-33-TN3-R
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252-2(DPAK) (KiCad packages3D, STEP)
  • 3D model files: uz1085l-33-tn3-r-etched.step / uz1085l-33-tn3-r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); uz1085l-33-tn3-r.step / uz1085l-33-tn3-r.glb are the bare package body.

Provenance

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

  • Datasheet: UTC Unisonic Tech datasheet (7 pp, sha256 a0899cf558b465e2, 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