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UA78M05CDCYR

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by Ray

Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Datasheet

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Contents

README

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UA78M05CDCYR

Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223

UA78M05CDCYR from Texas Instruments, in a SOT-223. 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 INPUT power_in Unregulated positive supply input. Recommended input voltage range 7 V to 25 V for the 5 V version (uA78M05); absolute maximum 35 V. A 0.33 uF ceramic bypass capacitor to COMMON is recommended close to the pin.
2 COMMON power_in Common/ground reference for the regulator. On the DCY (SOT-223) package this pin is also thermally/electrically tied to the tab and provides the primary heat-sinking path.
3 OUTPUT power_out Regulated 5 V output, up to 500 mA. A 0.1 uF ceramic bypass capacitor to COMMON is recommended close to the pin for stability and transient response.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-223
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • UA78M05CDCYR
  • UA78M05CDCYRKC
  • UA78M05CDCYRKCS
  • UA78M05CDCYRKVU
  • UA78M05CDCYRKTP

CAD (KiCad official)

  • Symbol: UA78M05CDCYR
  • Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
  • 3D model: SOT-223 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Texas Instruments datasheet (30 pp, sha256 5b532832c6c871c9, 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