component
KIA78L08F-RTF
Public Made by Adomby adom
KEC Semicon 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
markdownKIA78L08F-RTF
KEC Semicon · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89
KIA78L08F-RTF from KEC Semicon, 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 | OUTPUT | power_out | Regulated 8V (typ.) output, 7.7V to 8.3V at Tj=25°C, up to 150mA maximum output current, with a 0.1μF output capacitor in the test circuit. |
| 2 | GND | power_in | Ground pin, also the case/tab (GND (CASE)), return for the input and output capacitors. |
| 3 | INPUT | power_in | Unregulated input, rated 35V maximum for KIA78L05~15, with a 0.33μF input capacitor in the test circuit. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | KEC Semicon |
| 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 | VOUT | 7.7 | 8 | 8.3 | V | Tj=25 | 4 |
| Input Regulation | Reg line | 20 | 175 | mV | Tj=25, 10.5V VIN 23V | 4 | |
| Input Regulation | Reg line | 12 | 125 | mV | Tj=25, 11V VIN 23V | 4 | |
| Load Regulation | Reg load | 15 | 80 | mV | Tj=25, 1.0mA IOUT 100mA | 4 | |
| Load Regulation | Reg load | 7 | 40 | mV | Tj=25, 1.0mA IOUT 40mA | 4 | |
| Output Voltage | VOUT | 7.6 | 8.4 | V | 10.5V VIN 23V, 1.0mA IOUT 40mA | 4 | |
| Quiescent Current | IB | 3.1 | 6.5 | mA | Tj=25 | 4 | |
| Quiescent Current | IB | 6 | mA | Tj=125 | 4 | ||
| Quiescent Current Change | IB | 1.5 | mA | 11V VIN 23V | 4 | ||
| Quiescent Current Change | IB | 0.1 | mA | 1.0mA IOUT 40mA | 4 | ||
| Ripple Rejection Ratio | RR | 37 | 45 | dB | f=120Hz, 12V VIN 23V, Tj=25 | 4 | |
| Output Noise Voltage | VNO | 60 | μVrms | Ta=25, 10Hz f 100kHz | 4 | ||
| Long Term Stability | VOUT/t | 20 | mV/ | 1.0kHrs | 4 | ||
| Dropout Voltage | /VIN-VOUT/ | 1.7 | V | Tj=25 | 4 | ||
| Average Temperature Coefficient of Output Voltage | TCVO | -0.8 | mV/ | IOUT=5mA | 4 | ||
| Input Voltage | VIN | 35 | V | KIA78L05~15 | 1 | ||
| Power Dissipation (SOT-89, F) | PD | 500 | mW | Package F (SOT-89) | 1 | ||
| Operating Junction Temperature | Tj | -30 | 150 | °C | 1 | ||
| Operating Temperature | Topr | -40 | 85 | °C | 1 | ||
| Storage Temperature | Tstg | -55 | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
KIA78L08F-RTF - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files:
kia78l08f-rtf-etched.step/kia78l08f-rtf-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);kia78l08f-rtf.step/kia78l08f-rtf.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: KEC Semicon datasheet (15 pp, sha256
b3817aa781ca7c1e, retrieved 2026-10-19, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).