component
LP3879MRX-1.0
Public Made by Adomby adom
Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOIC-8-EP. 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
markdownLP3879MRX-1.0
Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOIC-8-EP
LP3879MRX-1.0 from Texas Instruments, in a SOIC-8-EP. 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 | BYPASS | passive | The capacitor connected between BYPASS and GROUND lowers output noise voltage and is required for loop stability. |
| 2 | N/C | unconnected | DO NOT CONNECT; this pin is used for post package test and must be left floating. |
| 3 | GROUND | power_in | Device ground. |
| 4 | INPUT | power_in | Input source voltage. |
| 5 | OUTPUT | power_out | Regulated output voltage. |
| 6 | SENSE | input | Remote sense; tie directly to output or remotely at point of load for best regulation. |
| 7 | N/C | unconnected | No internal connection. |
| 8 | SHUTDOWN | input | Output is enabled above the turn-on threshold voltage; pull down to turn off the regulator output. |
| 9 | SUBSTRATE | power_in | The exposed die attach pad should be connected to a thermal pad at ground potential. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8-EP |
| Category | Power Management (PMIC) |
| Pins | 9 |
CAD (KiCad official)
- Symbol:
LP3879MRX-1.0 - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm - 3D model: SOIC-8-EP (KiCad packages3D, STEP)
- 3D model files:
lp3879mrx-1-0-etched.step/lp3879mrx-1-0-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lp3879mrx-1-0.step/lp3879mrx-1-0.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (23 pp, sha256
b437c2e749f1337e, retrieved 2026-10-10, 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).