component
L78L08ACD13TR
Public Made by Adomby adom
STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SO-8. Datasheet-verified pinout, 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
markdownL78L08ACD13TR
STMicroelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SO-8
L78L08ACD13TR from STMicroelectronics, in a SO-8. 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 | VOUT | power_out | Regulated +8 V output (±4% tolerance). Sources up to 100 mA. Recommended 0.1 µF output capacitor to GND for stability. |
| 2 | GND | power_in | Ground / common return. In this SO-8 variant pins 2, 3, 6 and 7 are internally connected to the die attach flag to improve thermal dissipation; connect to a copper heat-sink area (≈6 cm²) for rated R_thJA of 55 °C/W. |
| 3 | GND | power_in | Ground / common return, internally tied to pins 2, 6, 7 and the die attach flag for enhanced heat-sinking. |
| 4 | NC | unconnected | No internal connection. May be left floating or tied to GND. |
| 5 | NC | unconnected | No internal connection. May be left floating or tied to GND. |
| 6 | GND | power_in | Ground / common return, internally tied to pins 2, 3, 7 and the die attach flag for enhanced heat-sinking. |
| 7 | GND | power_in | Ground / common return, internally tied to pins 2, 3, 6 and the die attach flag for enhanced heat-sinking. |
| 8 | VIN | power_in | Unregulated DC input voltage. Absolute maximum 30 V for a 3.3-9 V output part (this is the 8 V variant, V_I(max)=30 V). Recommended 0.33 µF input capacitor to GND if the regulator is located far from the power supply filter. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SO-8 |
| Category | PMIC |
| Pins | 8 |
Ordering variants
Same part, different packaging or reel option.
L78L08ACD13TRL78L08ACD13TRABD13TRL78L08ACD13TRACZL78L08ACD13TRACZ-APL78L08ACD13TRACZTRL78L08ACD13TRACUTRL78L08ACD13TRABUTR
CAD (KiCad official)
- Symbol:
L78L08ACD13TR - Footprint:
Package_SO:TI_SO-PowerPAD-8 - 3D model: SO-8 (KiCad packages3D, STEP)
- 3D model files:
l78l08acd13tr-etched.step/l78l08acd13tr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);l78l08acd13tr.step/l78l08acd13tr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (45 pp, sha256
5f83b83b3e7f09c1, retrieved 2026-08-17, tier: manufacturer) - 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).