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LM2940MDT-5.0

Public Made by Adom

by adom

HGSEMI Operational Amplifier, TO-252-2. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LM2940MDT-5.0

HGSEMI · Operational Amplifier · TO-252-2

LM2940MDT-5.0 from HGSEMI, in a TO-252-2. 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 IN power_in Input supply voltage, recommended operating range 6-26 V (absolute maximum 45 V).
2 GND power_in Ground pin; the package tab is also connected to GND.
3 OUT power_out LDO regulated output of 5.0 V (4.85-5.15 V) at 5 mA to 1 A load current.

Key specifications

Parameter Value
Manufacturer HGSEMI
Package TO-252-2
Category Operational Amplifier/Comparator
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 (LM2940-5) VOUT 4.85 5 5.15 V 5 mA≤Io≤1A 5
Quiescent current Icc 10 20 mA VO+2V≤VIN≤26V,Io=5mA 5
Quiescent current Icc 50 80 mA VIN=VO+5V,Io=1A 5
Line regulation VRLINE 5 50 mV VO+2V≤VIN≤26V,Io=5mA 5
Load regulation VRLOAD 25 50 mV 50 mA≤IO≤1A 5
Dropout voltage VDrop 0.5 1 V Io =1A 5
Dropout voltage VDrop 130 200 mV Io=100mA 5
Short-circuit current Ishort 1.5 1.9 A VinMax=26V 5
Maximum operating voltage VinMax 26 31 V 5
Input voltage VIN 6 26 V 4
Operating junction temperature (LM2940_) TJ -40 85 °C LM2940_ 4
Input supply voltage VIN 45 V 4
Lead temperature TLEAD 260 °C soldering 10 s, SOT-223/TO-252/DFN 4
Operating junction temperature TJ 150 °C 4
Storage temperature Tstg -65 150 °C 4
ESD (human body model) ESD 2000 V 4
ESD (machine model) ESD 300 V 4
RMS noise Noise 0.003 % 10Hz-100KHz, Io=5mA 5

CAD (KiCad official)

  • Symbol: LM2940MDT-5.0
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252-2 (KiCad packages3D, STEP)
  • 3D model files: lm2940mdt-5-0-etched.step / lm2940mdt-5-0-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm2940mdt-5-0.step / lm2940mdt-5-0.glb are the bare package body.

Provenance

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

  • Datasheet: HGSEMI datasheet (11 pp, sha256 06df9640720139f8, retrieved 2026-10-22, 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-sonnet-5-5 (text+vision), consensus claude-opus-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