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LM79L12

Public Made by Adom

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HTC Korea TAEJIN Tech Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-92-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)lm79l12factory-2.0.0extractor-text
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Contents

README

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LM79L12

HTC Korea TAEJIN Tech · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-92-3

LM79L12 from HTC Korea TAEJIN Tech, 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 GND power_in Ground (common) reference pin for the negative regulator, per the datasheet pin description table.
2 VIN power_in Negative input voltage pin; for the LM79L12 the recommended input range is -14.5 V to -27 V and the absolute maximum input voltage is -35 V.
3 VOUT power_out Regulated negative output voltage pin (nominal -12 V for LM79L12), with output current up to 100 mA.

Key specifications

Parameter Value
Manufacturer HTC Korea TAEJIN Tech
Package TO-92-3
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
Input Voltage (absolute maximum), LM79L12 to LM79L18 VIN -35 V LM79L12 ~ LM79L18 1
Maximum Power Dissipation PDMax 0.77 W TA = 25°C, TO-92 1
Lead Temperature (Soldering, 10 sec) TSOL 260 ℃ 10 sec soldering 1
Storage Temperature Range TSTG -65 150 ℃ 1
Operating Junction Temperature Range TJOPR 0 150 ℃ 1
Thermal Resistance Junction-To-Ambient θJA 162 ℃/W TO-92 1
Input Voltage (recommended) VIN -14.5 -27 V LM79L12 2
Output Current Io 100 mA 2
Operating Virtual Junction Temperature TJ 0 125 ℃ 2
Output Voltage VOUT -11.5 -12 -12.5 V 25℃, 1mA ≤ Io ≤ 40mA, -14.5V ≤ VIN ≤ -27V 7
Output Voltage VOUT -11.4 -12 -12.6 V 0℃ ~ 125℃, 1mA ≤ Io ≤ 70mA 7
Line Regulation ΔVLINE 50 250 mV -14.5V ≤ VIN ≤ -27V, 25℃ 7
Line Regulation ΔVLINE 40 200 mV -16V ≤ VIN ≤ -27V, 25℃ 7
Load Regulation ΔVLOAD 24 100 mV 1mA ≤ Io ≤ 100mA 7
Load Regulation ΔVLOAD 15 50 mV 1mA ≤ Io ≤ 40mA, 25℃ 7
Bias Current IB 6.5 mA 25℃ 7
Bias Current IB 6 mA 125℃ 7
Bias Current Change ΔIB 1.5 mA -16V ≤ VIN ≤ -27V 7
Bias Current Change ΔIB 0.1 mA 1mA ≤ Io ≤ 40mA, 0℃ ~ 125℃ 7
Ripple Rejection RR 37 42 dB -15V ≤ VIN ≤ -25V, f=120Hz, 25℃ 7
Output Noise Voltage VN 70 uV 10Hz ≤ f ≤ 100kHz, 25℃ 7
Dropout Voltage VD 1.7 V 25℃ 7

CAD (KiCad official)

  • Symbol: LM79L12
  • Footprint: Package_TO_SOT_THT:TO-92_Inline
  • 3D model: TO-92-3 (KiCad packages3D, STEP)
  • 3D model files: lm79l12-etched.step / lm79l12-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm79l12.step / lm79l12.glb are the bare package body.

Provenance

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

  • Datasheet: HTC Korea TAEJIN Tech datasheet (10 pp, sha256 26e775a1971f58c3, retrieved 2026-10-09, 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