component
78L12K
Public Made by Adomby adom
Shikues Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89. Pinout cross-checked by two models 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
markdown78L12K
Shikues · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89
78L12K from Shikues, 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 output terminal of the 78L12K, which delivers 12 V nominal at a maximum output current of 0.1 A. |
| 2 | GND | power_in | Common ground reference terminal for the regulator. |
| 3 | IN | power_in | Unregulated input terminal; the 78L09K~78L15K series has an absolute maximum input voltage (VI) of 35 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shikues |
| 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 | 11.5 | 12 | 12.5 | V | Tj = 25℃ | 4 |
| Output Voltage | VO | 11.4 | 12.6 | V | 14.5V ≤ VI ≤ 27V, 1 mA ≤ IO ≤ 40 mA | 4 | |
| Line Regulation | Regline | 250 | mV | 14.5V ≤ VI ≤ 27V, Tj = 25℃ | 4 | ||
| Line Regulation | Regline | 200 | mV | 16 V ≤ VI ≤ 27 V, Tj = 25℃ | 4 | ||
| Load Regulation | Regload | 100 | mV | 1 mA ≤ IO ≤ 100 mA, Tj = 25℃ | 4 | ||
| Load Regulation | Regload | 50 | mV | 1 mA ≤ IO ≤ 40 mA, Tj = 25℃ | 4 | ||
| Quiescent Current | IQ | 6 | mA | Tj = 25℃ | 4 | ||
| Quiescent Current Change | ΔIQ | 1.5 | mA | 16 V ≤ VI ≤ 27 V | 4 | ||
| Quiescent Current Change | ΔIQ | 0.1 | mA | 1 mA ≤ IO ≤ 40 mA | 4 | ||
| Ripple Rejection | RR | 37 | dB | f = 120 Hz, 15 V ≤ VI ≤ 25 V, Tj = 25℃ | 4 | ||
| Input Voltage | VI | 35 | V | 78L09K~78L15K | 1 | ||
| Power Dissipation | Ptot | 500 | mW | Ta ≤ 25℃, 15 mm X 25 mm X 0.7 mm alumina ceramic board | 1 | ||
| Operating Temperature | Topr | -20 | 120 | ℃ | 1 | ||
| Storage Temperature Range | Tstg | -55 | 150 | ℃ | 1 | ||
| Output Noise Voltage | VN | 80 | μV | 10 Hz ≤ f ≤ 100 KHz, Tj = 25℃ | 4 | ||
| Dropout Voltage | VDrop | 1.7 | V | Tj = 25℃ | 4 |
CAD (KiCad official)
- Symbol:
78L12K - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files:
78l12k-etched.step/78l12k-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);78l12k.step/78l12k.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shikues datasheet (7 pp, sha256
92707ded5757a94b, retrieved 2026-10-27, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusoff(skipped (clean text read)), 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).