component
L78M12ABDT
Public Made by Adomby adom
Tokmas Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2(DPAK). 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
markdownL78M12ABDT
Tokmas · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252-2(DPAK)
L78M12ABDT from Tokmas, in a TO-252-2(DPAK). 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 voltage; absolute maximum is 35 V for Vo = 5 V to 18 V and 40 V for Vo = 24 V. |
| 2 | GND | power_in | Ground reference; the heatsink surface is internally connected to this pin. |
| 3 | OUTPUT | power_out | Regulated 12 V output with output current up to 1.5 A, protected by thermal overload, short-circuit and output transistor SOA protection. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Tokmas |
| Package | TO-252-2(DPAK) |
| Category | Power Management (PMIC) |
| Pins | 3 |
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 | Vo | 11.5 | 12 | 12.5 | V | Tj=25℃ | 5 |
| Output voltage | Vo | 11.4 | 12 | 12.6 | V | 5.0mA<Io<1.0A, PD <15W; Vi=14.5V to 27V | 5 |
| Line regulation | Vo | 10 | 240 | mV | Tj=25℃, Vi=14.5V to 30V | 5 | |
| Line regulation | Vo | 3 | 120 | mV | Tj=25℃, Vi=16V to 22V | 5 | |
| Load regulation | Vo | 12 | 240 | mV | Tj=25℃, Io=5.0mA to 1.5A | 5 | |
| Load regulation | Vo | 5 | 120 | mV | Tj=25℃, Io=250mA to 750mA | 5 | |
| Quiescent current | IQ | 5.1 | 8 | mA | Tj=25℃ | 5 | |
| Quiescent current change | IQ | 0.5 | mA | Io=5mA to 1.0A | 5 | ||
| Quiescent current change | IQ | 0.8 | mA | Vi=15V to 30V | 5 | ||
| Ripple rejection | RR | 53 | 64 | dB | f=120Hz, Vi=15V to 25V | 5 | |
| Input voltage (for Vo=5V to 18V) | Vi | 35 | V | for Vo=5V to 18V (applies to 12V variant) | 2 | ||
| Operating temperature | Topr | -40 | 125 | ℃ | 2 | ||
| Storage temperature | Tstg | -65 | 150 | ℃ | 2 |
CAD (KiCad official)
- Symbol:
L78M12ABDT - Footprint:
Package_TO_SOT_SMD:TO-252-2 - 3D model: TO-252-2(DPAK) (KiCad packages3D, STEP)
- 3D model files:
l78m12abdt-etched.step/l78m12abdt-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);l78m12abdt.step/l78m12abdt.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Tokmas datasheet (9 pp, sha256
e61ea90b8763d6ec, retrieved 2026-10-19, tier: lcsc) - 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).