Loads on click. Unloads only if this page sits in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads on click. Unloads only if this page sits in the background.

PCB Footprint

Open full view ↗
Loads on click. Unloads only if this page sits in the background.
Loads on click. Unloads only if this page sits in the background.
Download PDF
Contents

README

markdown

L78M08ABDT-TR

STMicroelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · DPAK

L78M08ABDT-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 pin, physically the DPAK mounting tab (per Figure 2, 'Pin connections (top view)'); return path for input and quiescent currents (quiescent current Id typ. 6 mA at TJ = 25°C per Table 6, L78M08XX).
2 OUTPUT power_out Regulated +8 V output pin (7.7 V to 8.3 V over IO = 5 to 350 mA and VI = 10.5 to 23 V, per Table 6, L78M08XX); can source up to 0.5 A with internal current limiting, thermal shutdown and short-circuit protection (short-circuit current typ. 250 mA, peak 700 mA at VI = 35 V, TJ = 25°C).
3 INPUT power_in Unregulated DC input supply pin; must be 10.5 V to 23 V for specified 8 V output regulation (Table 6) and is limited to an absolute maximum of 35 V for VO = 5 to 18 V (Table 2); typical dropout voltage 2 V at TJ = 25°C.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package DPAK
Category Power Management (PMIC)
Pins 3

CAD (KiCad official)

  • Symbol: L78M08ABDT-TR
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: DPAK (KiCad packages3D, STEP)
  • 3D model files: l78m08abdt-tr-etched.step / l78m08abdt-tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); l78m08abdt-tr.step / l78m08abdt-tr.glb are 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).

Datasheet PDF