component
LP3874EMPX-5.0
Public Made by Adomby adom
Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
LP3874EMPX-5.0
Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-5
LP3874EMPX-5.0 from Texas Instruments, in a SOT-223-5. 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 | SD | input | Shutdown input: pulling SD low puts the regulator in shutdown with typically 10-nA quiescent current, and the shutdown input voltage is limited to -0.3 V to 7 V in recommended operation (7.5 V survival). |
| 2 | IN | power_in | Input voltage pin, specified for 2.5 V to 7 V supply (7.5 V survival), with VIN at least VOUT(NOM) + VDROPOUT or 2.5 V, whichever is greater. |
| 3 | OUT | power_out | Regulated output pin, rated for a maximum DC output current of 0.8 A and an output voltage survival range of -0.3 V to 6 V; the internal PMOS body diode from IN to OUT can carry 200 mA DC. |
| 4 | SENSE | input | Remote voltage sense input that improves regulation at remote loads; its maximum voltage is given in the Absolute Maximum Ratings only as a VOUT-referenced value that is not fully legible in the extracted text. |
| 5 | GND | power_in | Ground pin; ground pin current is typically 6 mA at 0.8-A load current. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-223-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |
CAD (KiCad official)
- Symbol:
LP3874EMPX-5.0 - Footprint:
Package_TO_SOT_SMD:SOT-223-5 - 3D model: SOT-223-5, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 1.45 mm nominal SOT height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files:
lp3874empx-5-0-etched.step/lp3874empx-5-0-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lp3874empx-5-0.step/lp3874empx-5-0.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (27 pp, sha256
b85de2cb47e9b1e2, retrieved 2026-10-11, 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).
# LP3874EMPX-5.0
**Texas Instruments** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-5
LP3874EMPX-5.0 from Texas Instruments, in a SOT-223-5. 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 | SD | input | Shutdown input: pulling SD low puts the regulator in shutdown with typically 10-nA quiescent current, and the shutdown input voltage is limited to -0.3 V to 7 V in recommended operation (7.5 V survival). |
| 2 | IN | power_in | Input voltage pin, specified for 2.5 V to 7 V supply (7.5 V survival), with VIN at least VOUT(NOM) + VDROPOUT or 2.5 V, whichever is greater. |
| 3 | OUT | power_out | Regulated output pin, rated for a maximum DC output current of 0.8 A and an output voltage survival range of -0.3 V to 6 V; the internal PMOS body diode from IN to OUT can carry 200 mA DC. |
| 4 | SENSE | input | Remote voltage sense input that improves regulation at remote loads; its maximum voltage is given in the Absolute Maximum Ratings only as a VOUT-referenced value that is not fully legible in the extracted text. |
| 5 | GND | power_in | Ground pin; ground pin current is typically 6 mA at 0.8-A load current. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-223-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |
## CAD (KiCad official)
- Symbol: `LP3874EMPX-5.0`
- Footprint: `Package_TO_SOT_SMD:SOT-223-5`
- 3D model: SOT-223-5, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 1.45 mm nominal SOT height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files: `lp3874empx-5-0-etched.step` / `lp3874empx-5-0-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lp3874empx-5-0.step` / `lp3874empx-5-0.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/lp3874) (27 pp, sha256 `b85de2cb47e9b1e2`, retrieved 2026-10-11, tier: lcsc)
- **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](docs/lp3874empx-5-0-datasheet.pdf)