component
78m12-ms
Public Made by Adomby adom
MSKSEMI Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Contents
README
markdown78M12-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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);78m12-ms.step/78m12-ms.glbare 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).
Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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