component
78D05G-TN3-R
Public Unreviewedby Ray
UTC Unisonic Tech Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2(DPAK). Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdown78D05G-TN3-R
UTC Unisonic Tech · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252-2(DPAK)
78D05G-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 | VIN | power_in | Unregulated positive input voltage. Absolute maximum 35V; nominal 10V for 5V output. A 0.33μF ceramic bypass capacitor to GND is recommended close to the pin for stability. |
| 2 | GND | power_in | Ground reference and thermal path. On the TO-252 (DPAK) package this pin is electrically connected to the exposed tab used as the primary heatsink. |
| 3 | VOUT | power_out | Regulated +5V output, capable of sourcing up to 0.5A (peak 1.2A) with typical short-circuit current limit of 250mA. A 0.1μF output bypass capacitor is recommended close to the pin for optimum transient response. |
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.
78D05G-TN3-R78D05G-TN3-RAA3-R78D05G-TN3-RTM3-T78D05G-TN3-RTNA-R
CAD (KiCad official)
- Symbol:
78D05G-TN3-R - Footprint:
Package_TO_SOT_SMD:TO-252-2 - 3D model: TO-252-2(DPAK) (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UTC Unisonic Tech datasheet (9 pp, sha256
d4475e10472bbb50, 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).