component
78M05AS
Public Made by Adomby adom
YFW Linear Voltage Regulators (LDO), TO-263. 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
markdown78M05AS
YFW · Linear Voltage Regulators (LDO) · TO-263
78M05AS from YFW, in a TO-263. 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 | IN | power_in | Unregulated positive input voltage, absolute maximum 25 V and specified over 7 to 25 V in the electrical characteristics. |
| 2 | GND | power_in | Ground reference for input and output, also connected to the metal tab of the TO-263 package. |
| 3 | OUT | power_out | Regulated fixed 5 V output (4.75 to 5.25 V) delivering up to 1.0 A with thermal overload and short circuit protection. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | YFW |
| Package | TO-263 |
| Category | Power Management |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
78M05AS - Footprint:
Package_TO_SOT_SMD:TO-263-2 - 3D model: TO-263 (KiCad packages3D, STEP)
- 3D model files:
78m05as-etched.step/78m05as-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);78m05as.step/78m05as.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: YFW datasheet (5 pp, sha256
159118edd62d951f, retrieved 2026-10-27, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).