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78R05G-TN3-R

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by Ray

UTC Unisonic Tech Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2(DPAK). Datasheet-verified pinout, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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78R05G-TN3-R

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

78R05G-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 input voltage pin. Accepts up to 35V absolute max; typical operating input for the 5V version is 7V with dropout of ~0.6V. Bypass with CI > 0.33uF electrolytic near the pin if far from the supply filter.
3 VOUT power_out Regulated 5V (typ, +/-2.4%) output pin, rated for up to 1A load current. Requires CO > 47uF electrolytic to ground for stability and transient response.
2 GND power_in Ground reference. In TO-252 this is the tab/pin 2. Also serves as the thermal path to PCB copper.

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.

  • 78R05G-TN3-R
  • 78R05G-TN3-RL-TN3-R
  • 78R05G-TN3-RTN5-R
  • 78R05G-TN3-RL-TN5-R
  • 78R05G-TN5-R
  • 78R05G-TN3-RTB5-T
  • 78R05G-TN3-RL-TB5-T
  • 78R05G-TN3-RG-TB5-T
  • 78R05G-TN3-RTF4-T
  • 78R05G-TN3-RL-TF4-T
  • 78R05G-TN3-RG-TF4-T

CAD (KiCad official)

  • Symbol: 78R05G-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 6478f9c74b2eab0a, 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