component
LM4140CCMX-1.2
Public Made by Adomby adom
Texas Instruments Voltage Reference, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLM4140CCMX-1.2
Texas Instruments · Voltage Reference · SOIC-8
LM4140CCMX-1.2 from Texas Instruments, in a SOIC-8. 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 | power_in | Negative supply or ground connection that must be connected to ground (one of four ground pins, 1, 4, 7 and 8). |
| 2 | VIN | power_in | Positive supply input; the datasheet's absolute maximum for any input pin is -0.3 V to 5.6 V and low-voltage operation is specified down to 1.8 V. |
| 3 | Enable | input | Pulled to input for normal operation; forcing this pin to ground turns off the output. |
| 4 | GND | power_in | Negative supply or ground connection that must be connected to ground (one of four ground pins, 1, 4, 7 and 8). |
| 5 | NC | unconnected | This pin must be left open. |
| 6 | VREF | power_in | Reference output capable of sourcing up to 8 mA. |
| 7 | GND | power_in | Negative supply or ground connection that must be connected to ground (one of four ground pins, 1, 4, 7 and 8). |
| 8 | GND | power_in | Negative supply or ground connection that must be connected to ground (one of four ground pins, 1, 4, 7 and 8). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
LM4140CCMX-1.2 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
lm4140ccmx-1-2-etched.step/lm4140ccmx-1-2-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm4140ccmx-1-2.step/lm4140ccmx-1-2.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (33 pp, sha256
18565fb048b1515d, retrieved 2026-10-08, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).