# 78L08S

**Shikues** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23

78L08S from Shikues, in a SOT-23. 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 of the three-terminal regulator, rated for a maximum output current IO of 0.1 A. |
| 2 | IN | power_in | Unregulated input supply, with an absolute maximum input voltage VI of 30 V and a recommended input bypass capacitor Ci of 0.33 µF. |
| 3 | GND | power_in | Ground reference pin for the regulator. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Shikues |
| Package | SOT-23 |
| 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°C, Vi=10V, Io=40mA (table default conditions) | 1 |
| Output voltage | Vo | 7.6 | 8 | 8.4 | V | Tj=0-125°C, 10.5V≤Vl≤23V, Io=1mA~40mA | 1 |
| Load regulation | ΔVo |  | 18 | 80 | mV | Tj=25°C, Io=1mA~100mA | 1 |
| Load regulation | ΔVo |  | 10 | 40 | mV | Tj=25°C, Io=1mA~40mA | 1 |
| Line regulation | ΔVo |  | 42 | 175 | mV | Tj=25°C, 10.5V≤Vl≤23V | 1 |
| Line regulation | ΔVo |  | 36 | 125 | mV | Tj=25°C, 11V≤Vl≤23V | 1 |
| Quiescent current | Iq |  | 4 | 6 | mA | Tj=25°C | 1 |
| Quiescent current change | ΔIq |  |  | 1.5 | mA | Tj=0-125°C, 11V≤Vl≤23V | 1 |
| Quiescent current change | ΔIq |  |  | 0.1 | mA | Tj=0-125°C, 1mA≤Io≤40mA | 1 |
| Ripple rejection | RR | 37 | 46 |  | dB | Tj=0-125°C, 13V≤Vl≤23V, f=120Hz | 1 |
| Output noise voltage | VN |  | 54 |  | uV | Tj=25°C, 10Hz≤f≤100KHz | 1 |
| Dropout voltage | Vd |  | 1.7 |  | V | Tj=25°C | 1 |
| Input voltage | VI |  |  | 30 | V |  | 1 |
| Operating junction temperature range | TOPR | 0 |  | 125 | °C |  | 1 |
| Storage temperature range | TSTG | -65 |  | 150 | °C |  | 1 |
| Continuous total dissipation | PD |  |  | 0.35 | W | Ta=25°C | 1 |
| Maximum output current | IO |  |  | 0.1 | A |  | 1 |

## CAD (KiCad official)

- Symbol: `78L08S`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `78l08s-etched.step` / `78l08s-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `78l08s.step` / `78l08s.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Shikues datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590165972834418688) (3 pp, sha256 `5515b7b05ce8065a`, retrieved 2026-10-19, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).

[Datasheet PDF](docs/78l08s-datasheet.pdf)