component

78m12-ms

Public Made by Adom

by adom

MSKSEMI Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentpmic78m12-ms
Overview Files Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
78m12-ms / README.md
History Download
Ray 78m12-ms: specified limits as data (metadata.characteristics, 19 rows from the datasheet) 8d209c2 20d ago

78M12-MS

MSKSEMI · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252

78M12-MS from MSKSEMI, in a TO-252. 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 IN power_in Unregulated positive input supply. Accepts up to 35V absolute maximum; recommended operating range approximately 14.5V to 30V for a 12V output. Bypass to GND with a 0.33μF capacitor close to the pin.
2 GND power_in Common ground reference for input and output. Internally connected to the tab/heat slug of the TO-252 package, providing the primary thermal path to the PCB.
3 OUT power_out Regulated +12V output. Nominal 12V ±0.5V at Io=5-350mA, up to 500mA maximum (IOM 0.5A). Bypass to GND with a 0.1μF capacitor close to the pin for stability.

Key specifications

Parameter Value
Manufacturer MSKSEMI
Package TO-252
Category PMIC
Pins 3

Ordering variants

  • 78M12-MS

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Output voltage 11.5 12 12.5 V 2
Output voltage Vo 11.4 12 12.6 V Io=5 to 350mA, Vi=14.5 to 27V 2
Line regulation Vo 240 mV Vi=14.5 to 30V, Io=200mA 2
Line regulation Vo 120 mV Vi=16 to 30V, Io=200mA 2
Load regulation Vo 240 mV Io=5 to 500mA, Tj=25C 2
Load regulation Vo 120 mV Io=5 to 200mA, Tj=25C 2
Quiescent current IQ 6 mA 2
Quiescent current change IQ 0.5 mA Io=5 to 350mA 2
Quiescent current change IQ 0.8 mA Vi=14.5V to 30V, Io=200mA 2
Output voltage drift Vo/T 1 mV/C Io=5mA, Tj=0 to 125C 2
Supply voltage rejection SVR 55 dB Vi=15 to 25V, f=120Hz, Io=300mA 2
Output noise voltage VN 75 V f=10Hz to 100kHz 2
Dropout voltage Vo 2 V 2
Short circuit current Isc 50 mA Vi=35V 2
Operating junction temperature range TOPR 0 125 ℃ 2
Input voltage Vi 335 V 2
Storage temperature range TSTG -65 150 ℃ 2
Maximum output current IOM 0.5 A 2
Continuous total dissipation PD 1.25 W 2

CAD (KiCad official)

  • Symbol: 78M12-MS
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252 (KiCad packages3D, STEP)
  • 3D model files: 78m12-ms-etched.step / 78m12-ms-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 78m12-ms.step / 78m12-ms.glb are the bare package body.

Provenance

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

  • Datasheet: MSKSEMI datasheet (None pp, sha256 1b6f97415c0f51d6, retrieved 2026-08-17, tier: lcsc)
  • 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