component
LM78L08
Public Made by Adomby adom
KEXIN Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 17d ago |
| viewers | 17d ago |
| lm78l08-etched.glb | 17d ago |
| lm78l08-etched.step | 17d ago |
| lm78l08-hero.glb | 17d ago |
| lm78l08-hero.overlay.json | 17d ago |
| lm78l08.glb | 17d ago |
| lm78l08.kicad_mod | 17d ago |
| lm78l08.kicad_sym | 17d ago |
| lm78l08.lbr | 17d ago |
| lm78l08.step | 17d ago |
| package.json | 17d ago |
| page.json | 17d ago |
| README.md | 17d ago |
LM78L08
KEXIN · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89
LM78L08 from KEXIN, in a SOT-89. 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 | OUT | power_out | Regulated 8 V output; the maximum output current is stated as 0.1 A, and a 0.1 µF output bypass capacitor is recommended close to the regulator. |
| 2 | GND | power_in | Common ground reference pin for the regulator. |
| 3 | IN | power_in | Unregulated input; the absolute maximum input voltage is 30 V, and electrical characteristics are specified for 11 V ≤ VI ≤ 23 V, with a 0.33 µF input bypass capacitor recommended. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | KEXIN |
| Package | SOT-89 |
| 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 | 7.7 | 8 | 8.3 | V | TJ = 25 | 1 |
| Output Voltage | VO | 7.6 | 8 | 8.4 | V | TJ = 0 to 125, 10.5V ≤ VI ≤ 23V, IO = 1mA to 40mA | 1 |
| Load Regulation | VO | 18 | 80 | mV | TJ = 25, IO = 1mA to 100mA | 1 | |
| Load Regulation | VO | 10 | 40 | mV | TJ = 25, IO = 1mA to 40mA | 1 | |
| Line Regulation | VO | 42 | 175 | mV | TJ = 25, 10.5V ≤ VI ≤ 23V | 1 | |
| Line Regulation | VO | 36 | 125 | mV | TJ = 25, 11V ≤ VI ≤ 23V | 1 | |
| Quiescent Current | IQ | 4 | 6 | mA | TJ = 25 | 1 | |
| Quiescent Current Change | IQ | 1.5 | mA | TJ = 0 to 125, 11V ≤ VI ≤ 23V | 1 | ||
| Quiescent Current Change | IQ | 0.1 | mA | TJ = 0 to 125, 1mA ≤ IO ≤ 40mA | 1 | ||
| Output Noise Voltage | VN | 54 | V | TJ = 25, 10Hz ≤ f ≤ 100KHz | 1 | ||
| Ripple Rejection | RR | 37 | 46 | dB | TJ = 0 to 125, 13V ≤ VI ≤ 23V, f = 120Hz | 1 | |
| Dropout Voltage | VD | 1.7 | V | TJ = 25 | 1 | ||
| Input Voltage | VI | 30 | V | 1 | |||
| Operating Junction Temperature Range | TOPR | -55 | 125 | 1 | |||
| Storage Temperature Range | TSTG | -55 | 150 | 1 | |||
| Continuous Total Dissipation | PD | 0.5 | W | Ta = 25 | 1 | ||
| Maximum Output Current | IO | 0.1 | A | 1 |
CAD (KiCad official)
- Symbol:
LM78L08 - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files:
lm78l08-etched.step/lm78l08-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm78l08.step/lm78l08.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: KEXIN datasheet (2 pp, sha256
148ca0f1a891d65a, retrieved 2026-10-18, 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).