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Contents

README

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LM1084IT-3.3G

HANSCHIP semiconductor · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-220-3L

LM1084IT-3.3G from HANSCHIP semiconductor, 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 GND/ADJ power_in Ground/adjust pin (地/ADJ); for the fixed LM1084-3.3 variant it is the ground reference, and the datasheet's recommended operating junction range is 0 to +125 °C.
2 VOUT power_out Regulated output pin giving 3.3 V nominal, with an output of 3.234 V to 3.366 V over 10 mA to 5 A load and 4.8 V to 8 V input (LM1084-3.3 test conditions); the datasheet requires at least 22 µF tantalum output capacitance for stability.
3 VIN power_in Input supply pin with a recommended input voltage of 12 V and an absolute maximum input voltage of 20 V.

Key specifications

Parameter Value
Manufacturer HANSCHIP semiconductor
Package TO-220-3L
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 (LM1084-3.3) VOUT 3.225 3.3 3.35 V IOUT=10mA, VIN=6.3V 3
Output voltage (LM1084-3.3) VOUT 3.234 3.3 3.366 V 10mA≤IOUT≤5A, 4.8V≤VIN≤8V 3
Line regulation (LM1084-3.3) ΔVOUT 0.5 6 mV IOUT=10mA, 4.8V≤VIN≤10V 3
Load regulation (LM1084-3.3) ΔVOUT 3 20 mV 0mA≤IOUT≤5A, VIN-VOUT=3V 4
Dropout voltage VDROP 1.45 1.5 V IOUT=5A, ΔVREF, ΔVOUT=1% 4
Current limit ILIMIT 5.5 6.5 A VIN-VOUT=3V 4
Quiescent current IQ 5 10 mA VIN=10V (LM1084) 4
Ripple rejection PSRR 60 72 dB fRIPPLE=120Hz, COUT=25µF tantalum, IOUT=5A, VIN-VOUT=3V 4
Input voltage (absolute maximum) VIN 20 V 3
Lead temperature (soldering) TLEAD 245 ℃ Soldering, 10 s 3
Operating junction temperature (absolute maximum) TJ 150 ℃ 3
Storage temperature TS -65 150 V 3
ESD capability ESD 2000 V Minimum ESD capability 3
Operating junction temperature range (recommended) TJ 0 125 °C 3
Input voltage (recommended) VIN 12 V 3
Junction-to-ambient thermal resistance (TO-220-3L) θJA 60 ℃/W TO-220-3L 4

CAD (KiCad official)

  • Symbol: LM1084IT-3.3G
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220-3L (KiCad packages3D, STEP)
  • 3D model files: lm1084it-3-3g-etched.step / lm1084it-3-3g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm1084it-3-3g.step / lm1084it-3-3g.glb are the bare package body.

Provenance

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

  • Datasheet: HANSCHIP semiconductor datasheet (11 pp, sha256 eea5ae8cca4fced7, retrieved 2026-10-19, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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