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LM79L24

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

LM79L24 from HTC Korea TAEJIN Tech, in a TO-92. 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 pin of the regulator, listed first in the datasheet pin description; the datasheet gives no further electrical limits for this pin.
2 VIN power_in Input voltage pin; for the LM79L24 the recommended input range is -27V to -38V and the absolute maximum input voltage is -40V.
3 VOUT power_out Regulated negative output pin; for the LM79L24 the output is -24V nominal (-22.8V to -25.2V over temperature at 1mA ≤ Io ≤ 70mA) with output current up to 100mA.

Key specifications

Parameter Value
Manufacturer HTC Korea TAEJIN Tech
Package TO-92
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 (LM79L24) VIN -40 V LM79L24 1
Maximum Power Dissipation / TO-92 PDMax 0.77 W TA = 25°C 1
Thermal Resistance Junction-To-Ambient / TO-92 θJA 162 °C/W TO-92 1
Lead Temperature (Soldering) TSOL 260 °C 10 sec 1
Storage Temperature Range TSTG -65 150 °C 1
Operating Junction Temperature Range TJOPR -40 125 °C 1
Input Voltage (LM79L24) VIN -27 -38 V LM79L24 2
Output Current Io 100 mA 2
Operating Junction Temperature TJ -40 125 °C 2
Output Voltage VOUT -23 -24 -25 V 25°C; 1mA ≤ Io ≤ 40mA; -27V ≤ VIN ≤ -38V 8
Output Voltage VOUT -22.8 -24 -25.2 V -30°C ~ 125°C; 1mA ≤ Io ≤ 40mA; -27V ≤ VIN ≤ -38V 8
Line Regulation ΔVLINE 95 480 mV 25°C; -27V ≤ VIN ≤ -38V 8
Line Regulation ΔVLINE 78 400 mV -28V ≤ VIN ≤ -38V 8
Load Regulation ΔVLOAD 41 240 mV 25°C; 1mA ≤ Io ≤ 100mA 8
Load Regulation ΔVLOAD 28 120 mV 25°C; 1mA ≤ Io ≤ 40mA 8
Bias Current IB 4.8 6.5 mA 25°C 8
Bias Current IB 6 mA 125°C 8
Bias Current Change ΔIB 1.5 mA -28V ≤ VIN ≤ -38V; -30°C ~ 125°C 8
Bias Current Change ΔIB 0.1 mA 1mA ≤ Io ≤ 40mA 8
Output Noise Voltage VN 82 uV 10Hz ≤ f ≤ 100kHz; 25°C 8
Ripple Rejection RR 30 33 dB -29V ≤ VIN ≤ -35V; f=120Hz; 25°C 8
Dropout Voltage VD 1.7 V 25°C 8

CAD (KiCad official)

  • Symbol: LM79L24
  • Footprint: Package_TO_SOT_THT:TO-92_Inline
  • 3D model: TO-92 (KiCad packages3D, STEP)
  • 3D model files: lm79l24-etched.step / lm79l24-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm79l24.step / lm79l24.glb are the bare package body.

Provenance

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

  • Datasheet: HTC Korea TAEJIN Tech datasheet (11 pp, sha256 cff4de77fbab861c, retrieved 2026-11-05, 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