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LM29300T-3.3

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HTC Korea TAEJIN Tech Linear Voltage Regulators (LDO), TO-220-3L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LM29300T-3.3

HTC Korea TAEJIN Tech · Linear Voltage Regulators (LDO) · TO-220-3L

LM29300T-3.3 from HTC Korea TAEJIN Tech, in a TO-220-3L. 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 VIN power_in Input supply pin; recommended operating input voltage is up to 26V, with absolute maximum ratings of -20V to 60V (60V only for less than 100ms at 1% duty cycle).
2 GND power_in Ground pin; a 0.1μF capacitor between input and GND is recommended when the source has high AC impedance.
3 OUT power_out Regulated output voltage pin, rated for 3.0A full load; the regulator requires a minimum 10μF output capacitor to be stable at full load.

Key specifications

Parameter Value
Manufacturer HTC Korea TAEJIN Tech
Package TO-220-3L
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
Input Supply Voltage VIN -20 60 V Note 1: max 60V limited to <100msec, duty cycle <=1%; continuous max 26V 1
Lead Temperature (Soldering, 5 sec) TSOL 260 °C 5 sec soldering 1
Storage Temperature Range TSTG -65 150 °C 1
Operating Input Voltage VIN 26 V 2
Operating Junction Temperature TJ -40 125 °C 2
Output Voltage VOUT -1 1 % IO = 10mA 6
Output Voltage VOUT -2 2 % 10mA≤IO≤IFULLLOAD (Note 2), (VOUT+1V)≤VIN≤26V 6
Line Regulation ΔVLINE 0.06 0.5 % IO = 10mA, (VOUT+1V)≤VIN≤26V 6
Load Regulation ΔVLOAD 0.2 1 % VIN=VOUT+5V, 10mA≤IOUT≤IFULLLOAD (Note 2,6) 6
Output Voltage Temp. Coefficient ΔVo/ΔT 20 100 ppm/°C Output Voltage (Note 6), Temp. Coefficient 6
Dropout Voltage VDROP 80 175 mV ΔVOUT = -1%, (Note 3), IO = 100mA 6
Dropout Voltage VDROP 250 600 mV ΔVOUT = -1%, (Note 3), IO = 1.5A 6
Dropout Voltage VDROP 370 mV ΔVOUT = -1%, (Note 3), IO = 3.0A 6
Ground Current IGND 10 35 mA IO = 1.5A, VIN = VOUT+1V 6
Ground Current IGND 37 mA IO = 3.0A, VIN = VOUT+1V 6
Ground Pin Current at Dropout IGND_DO 1.7 mA VIN = 0.5V less than specified VOUT, IOUT = 10mA 6
Current Limit ILIMIT 4.5 5 A VOUT = 0V (Note 4) 6
Output Noise Voltage (10Hz to 100kHz) en 400 μVRMS IL = 100mA, CL = 10μF 6
Output Noise Voltage (10Hz to 100kHz) en 260 μVRMS IL = 100mA, CL = 33μF 6

CAD (KiCad official)

  • Symbol: LM29300T-3.3
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220-3L (KiCad packages3D, STEP)
  • 3D model files: lm29300t-3-3-etched.step / lm29300t-3-3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm29300t-3-3.step / lm29300t-3-3.glb are the bare package body.

Provenance

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

  • Datasheet: HTC Korea TAEJIN Tech datasheet (12 pp, sha256 1739b5954b8bff04, retrieved 2026-10-27, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus off (skipped (clean text read)), 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