component
KIA79L12BP-AT
Public Made by Adomby adom
KEC Semicon Linear Voltage Regulators (LDO), TO-92-3. 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
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KIA79L12BP-AT
KEC Semicon · Linear Voltage Regulators (LDO) · TO-92-3
KIA79L12BP-AT from KEC Semicon, in a TO-92-3. 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 | COMMON | power_in | Common (ground) reference pin of the negative regulator. |
| 2 | INPUT | power_in | Negative input voltage, absolute maximum -35V for KIA79L12BP, with the 12V part's specified line range of -14.5V to -27V. |
| 3 | OUTPUT | power_out | Regulated output of -12.0V typical (-12.5V to -11.5V at Tj=25C), with maximum output current of 150mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | KEC Semicon |
| Package | TO-92-3 |
| Category | Power Management ICs |
| 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 | -12.5 | -12 | -11.5 | V | Tj=25, VIN=-19V, IOUT=40mA | 7 |
| Output Voltage | VOUT | -12.6 | -11.4 | V | -27V ≤ VIN ≤ -14.5V, 1.0mA ≤ IOUT ≤ 40mA | 7 | |
| Input Regulation | Reg line | 120 | 250 | mV | Tj=25, -27V ≤ VIN ≤ -14.5V | 7 | |
| Input Regulation | Reg line | 100 | 200 | mV | Tj=25, -27V ≤ VIN ≤ -16V | 7 | |
| Load Regulation | Reg load | 20 | 100 | mV | Tj=25, 1.0mA ≤ IOUT ≤ 100mA | 7 | |
| Load Regulation | Reg load | 10 | 50 | mV | Tj=25, 1.0mA ≤ IOUT ≤ 40mA | 7 | |
| Quiescent Current | IB | 3.2 | 6.5 | mA | Tj=25 | 7 | |
| Quiescent Current | IB | 6 | mA | Tj=125 | 7 | ||
| Quiescent Current Change (input) | ΔIB(I) | 1.5 | mA | -27V ≤ VIN ≤ -16V | 7 | ||
| Quiescent Current Change (output) | ΔIB(O) | 0.1 | mA | 1.0mA ≤ IOUT ≤ 40mA | 7 | ||
| Ripple Rejection Ratio | RR | 37 | 42 | dB | -25V ≤ VIN ≤ -15V, Tj=25, f=120Hz | 7 | |
| Output Noise Voltage | VNO | 80 | µVrms | Ta=25, 10Hz ≤ f ≤ 100kHz | 7 | ||
| Long Term Stability | ΔVOUT/Δt | 24 | mV/1.0kHrs | 7 | |||
| Dropout Voltage | VIN-VOUT | 1.7 | V | Tj=25, IOUT=40mA | 7 | ||
| Average Temperature Coefficient of Output Voltage | TCVO | -1 | mV/°C | IOUT=5mA | 7 | ||
| Input Voltage | VIN | -35 | V | KIA79L05BP~KIA79L15BP | 1 | ||
| Power Dissipation | PD | 800 | mW | Tc=25 | 1 | ||
| Operating Junction Temperature | Tj | -30 | 150 | °C | 1 | ||
| Operating Temperature | Topr | -30 | 75 | °C | 1 | ||
| Storage Temperature | Tstg | -55 | 150 | °C | 1 | ||
| Max Output Current | 150 | mA | Tj=25 | 1 |
CAD (KiCad official)
- Symbol:
KIA79L12BP-AT - Footprint:
Package_TO_SOT_THT:TO-92_Inline - 3D model: TO-92-3 (KiCad packages3D, STEP)
- 3D model files:
kia79l12bp-at-etched.step/kia79l12bp-at-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);kia79l12bp-at.step/kia79l12bp-at.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: KEC Semicon datasheet (13 pp, sha256
0aa1322d0fca3806, retrieved 2026-10-30, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).