component
UA78M05QDCYRG4Q1
Public Made by Adomby adom
Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-4. Pinout cross-checked by two models against the datasheet, 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
markdownUA78M05QDCYRG4Q1
Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-4
UA78M05QDCYRG4Q1 from Texas Instruments, in a SOT-223-4. 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 | INPUT | power_in | Unregulated input pin; connect the recommended 0.33 µF input capacitor from INPUT to COMMON, placed as close to the device as possible, and keep VIN within 7 V to 25 V for the non-M3 UA78M05 (absolute maximum 35 V). |
| 2 | COMMON | power_in | Ground (common) pin to which all voltages are referenced; tying it to ground sets the fixed output voltage. |
| 3 | OUTPUT | power_out | Regulated 5 V output pin; use the recommended 0.1 µF output capacitor placed as close to OUTPUT and COMMON as possible, with output current up to 500 mA. |
| 4 | COMMON | power_in | Ground (common) pin on the package tab, electrically the same node as pin 2 and to be tied to ground. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-223-4 |
| Category | Power Management (PMIC) |
| Pins | 4 |
CAD (KiCad official)
- Symbol:
UA78M05QDCYRG4Q1 - Footprint:
Package_TO_SOT_SMD:SOT-223 - 3D model: SOT-223-4 (KiCad packages3D, STEP)
- 3D model files:
ua78m05qdcyrg4q1-etched.step/ua78m05qdcyrg4q1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ua78m05qdcyrg4q1.step/ua78m05qdcyrg4q1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (28 pp, sha256
0c4f53a2312550c4, retrieved 2026-10-11, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).