component
NCV4274ADT50RKG
Public Unreviewedby Ray
onsemi 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
markdownNCV4274ADT50RKG
onsemi · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252-2(DPAK)
NCV4274ADT50RKG from onsemi, 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 | I | power_in | Unregulated input to the regulator. Operating input voltage 4.5-40 V (5.0 V version min 5.5 V; 8.5 V version min 9.0 V); absolute max DC -42 V to +45 V and +60 V transient. Bypass directly at the IC with a ceramic capacitor (e.g. 100 nF) to GND. |
| 2 | GND | power_in | Device ground / reference return. Also serves as the exposed tab / thermal pad on DPAK; tie pins 2 and 4 together to the system ground plane. Ground current limited to 100 mA absolute max. |
| 3 | Q | power_out | Regulated output. Fixed 2.5 / 3.3 / 5.0 / 8.5 V (per suffix), 400 mA capability, dropout ≤0.5 V at 250 mA (5 V/8.5 V versions). Bypass to GND with output capacitor (10 μF for VQ ≤ 3.3 V, 22 μF for VQ ≥ 5 V). Absolute max VQ range -1.0 V to +40 V. |
| 4 | GND | power_in | Ground tab of the DPAK package (electrically identical to pin 2). Provides the primary thermal path to the PCB; solder to a copper pour tied to system ground for heat dissipation (Rθja ≈ 70 °C/W soldered on FR4). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | TO-252-2(DPAK) |
| Category | PMIC |
| Pins | 4 |
Ordering variants
Same part, different packaging or reel option.
NCV4274ADT50RKGNCV4274ADT50RKGDSNCV4274ADT50RKGST
CAD (KiCad official)
- Symbol:
NCV4274ADT50RKG - 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: onsemi datasheet (18 pp, sha256
6fafa5df077535d7, 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).