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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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); kia79l12bp-at.step / kia79l12bp-at.glb are 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, primary claude-sonnet-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