# UZ1084G-3.3V-TN3-R

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

UZ1084G-3.3V-TN3-R from UTC Unisonic Tech, in a TO-252-2(DPAK). 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 | GND | power_in | Ground reference pin for the fixed-voltage regulator, designated G in the ordering note (A/G: ADJ for adjustable, GND for fixed). |
| 2 | VOUT | power_out | Regulated output pin (designated O in the ordering note); for the UZ1084-33 3.3 V fixed version the output is 3.267 V to 3.333 V at 1% tolerance (3.234 V to 3.366 V at 2%) with IOUT=10mA, and the part is rated for up to 5 A output current. |
| 3 | VIN | power_in | Input supply pin (designated I in the ordering note); the absolute maximum DC input voltage is 15 V and the regulator requires 1.5 V ≤ (VIN−VOUT) ≤ 5.75 V for specified operation. |

## Key specifications

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

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Output Voltage, 1% grade (UZ1084-33) | VOUT | 3.267 | 3.3 | 3.333 | V | UZ1084-33 lOUT=10mA | 3 |
| Output Voltage, 2% grade (UZ1084-33) | VOUT | 3.234 | 3.3 | 3.366 | V |  | 3 |
| Line Regulation | VOUT |  | 0.5 | 2 | % | IOUT=10mA | 3 |
| Load Regulation | VOUT |  | 0.5 | 2.5 | % | 10mA≤lOUT≤5A | 3 |
| Dropout Voltage | VD |  |  | 1.5 | V | △VREF%=2%, lOUT=5A | 3 |
| Current Limit | ILIMIT | 5.5 |  | 6.5 | A | (VIN-VOUT)=2V | 3 |
| Minimum Load Current | ∆IADJ |  | 5 | 10 | mA | 1.5V≤ (VIN-VOUT) ≤5.75V | 3 |
| Quiescent Current | IQ |  | 10 | 13 | mA | VIN=12V | 3 |
| Thermal Shutdown |  |  | 150 |  | C |  | 3 |
| DC Input Voltage | VIN |  |  | 15 | V |  | 3 |
| Operating Temperature | TOPR | 0 |  | 125 | °C |  | 3 |
| Storage Temperature | TSTG | -65 |  | 150 | °C |  | 3 |
| Input-to-Output Voltage Differential (fixed voltage operating range) | VIN-VOUT | 1.5 |  | 5.75 | V |  | 3 |
| Junction to Ambient Thermal Resistance, TO-252 | θJA |  | 112 |  | °C/W |  | 3 |
| Junction to Case Thermal Resistance, TO-252 | θJC |  | 12 |  | °C/W |  | 3 |

## CAD (KiCad official)

- Symbol: `UZ1084G-3.3V-TN3-R`
- Footprint: `Package_TO_SOT_SMD:TO-252-2`
- 3D model: TO-252-2(DPAK) (KiCad packages3D, STEP)
- 3D model files: `uz1084g-3-3v-tn3-r-etched.step` / `uz1084g-3-3v-tn3-r-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `uz1084g-3-3v-tn3-r.step` / `uz1084g-3-3v-tn3-r.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [UTC Unisonic Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586177751258292224) (6 pp, sha256 `31c4027cfd190c48`, retrieved 2026-10-19, 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](docs/uz1084g-3-3v-tn3-r-datasheet.pdf)