component
L78M09ABDT-TR
Public Made by Adomby adom
STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, DPAK. Pinout reviewed by a person 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
markdownL78M09ABDT-TR
STMicroelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · DPAK
L78M09ABDT-TR from STMicroelectronics, in a 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 | GND | power_in | Ground/common reference terminal; also forms the exposed tab used for heatsinking (RthJC = 8 °C/W, RthJA = 100 °C/W for DPAK). |
| 2 | OUTPUT | power_out | Regulated positive output; for the 9 V version, VO = 8.82 to 9.18 V at TJ=25°C and 8.64 to 9.36 V over IO = 5 to 350 mA, VI = 11.5 to 24 V, with output current up to 0.5 A and short-circuit/thermal-shutdown protection. |
| 3 | INPUT | power_in | Unregulated DC input supply; must stay within VI = 11.5 to 24 V for specified regulation on the 9 V part, with an absolute maximum DC input voltage of 35 V (for VO = 5 to 18 V devices). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | DPAK |
| Category | Power Management (PMIC) |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
L78M09ABDT-TR - Footprint:
Package_TO_SOT_SMD:TO-252-2 - 3D model: DPAK (KiCad packages3D, STEP)
- 3D model files:
l78m09abdt-tr-etched.step/l78m09abdt-tr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);l78m09abdt-tr.step/l78m09abdt-tr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (29 pp, sha256
06d79d9f1c19140c, retrieved 2026-09-29, 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).