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Contents

README

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LM78L05F

HTC Korea TAEJIN Tech · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89

LM78L05F from HTC Korea TAEJIN Tech, 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 VOUT power_out Regulated output voltage, fixed at 5 V for the LM78L05, supplying up to 100 mA of output current.
2 GND power_in Ground reference pin for the regulator, shared between input and output return.
3 VIN power_in Unregulated input voltage, with absolute maximum ratings of 30 V for LM78L05 to LM78L10, 35 V for LM78L12 to LM78L18, and 40 V for LM78L24.

Key specifications

Parameter Value
Manufacturer HTC Korea TAEJIN Tech
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 tolerance (blank suffix, no A) -4 4 % Tolerance code blank (LM78L05F, no A suffix) = 4% 3
Input Voltage VIN 30 V LM78L05 ~ LM78L10 1
Lead Temperature (Soldering, 10 sec) TSOL 260 ℃ Soldering, 10 sec 1
Storage Temperature Range TSTG -65 150 ℃ 1
Operating Junction Temperature Range TJOPR -40 150 ℃ 1
Input Voltage VIN 7 20 V LM78L05 / A 2
Output Current Io 100 100 mA 2
Operating Virtual Junction Temperature TJ -40 125 ℃ 2
Output Voltage VOUT 4.8 5 5.2 V 25℃, 1mA ≤ Io ≤ 40mA, 7V ≤ VIN ≤ 20V 5
Output Voltage VOUT 4.75 5 5.25 V -30℃ ~ 125℃, 1mA ≤ Io ≤ 70mA, 7V ≤ VIN ≤ 20V 5
Line Regulation ΔVLINE 32 150 mV 7V ≤ VIN ≤ 20V 5
Line Regulation ΔVLINE 26 100 mV 8V ≤ VIN ≤ 20V, 25℃ 5
Load Regulation ΔVLOAD 15 60 mV 1mA ≤ Io ≤ 100mA 5
Load Regulation ΔVLOAD 8 30 mV 1mA ≤ Io ≤ 40mA, 25℃ 5
Bias Current IB 3.8 6 mA 25℃ 5
Bias Current IB 5.5 mA 125℃ 5
Bias Current Change ΔIB 1.5 mA 9V ≤ VIN ≤ 20V 5
Bias Current Change ΔIB 0.1 mA 1mA ≤ Io ≤ 40mA, -30℃ ~ 125℃ 5
Ripple Rejection RR 41 49 dB 8V ≤ VIN ≤ 18V, f=120Hz, 25℃ 5

CAD (KiCad official)

  • Symbol: LM78L05F
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89 (KiCad packages3D, STEP)
  • 3D model files: lm78l05f-etched.step / lm78l05f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm78l05f.step / lm78l05f.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 b5b1ed6d19d1619d, retrieved 2026-10-18, 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