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LM2940MDT-5.0
Public Made by Adomby 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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm2940mdt-5-0.step/lm2940mdt-5-0.glbare 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, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).
# 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](docs/lm2940mdt-5-0-datasheet.pdf) (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](docs/lm2940mdt-5-0-datasheet.pdf)