# LP3875EMP-5.0

**Texas Instruments** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-5

LP3875EMP-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 pin that must be pulled high through a 10-kΩ pullup resistor, with SD voltage limited to −0.3 V to 7 V, and pulling it low places the regulator in shutdown with about 10-nA quiescent current. |
| 2 | IN | power_in | Input supply pin for the 2.5 V to 7 V operating range, with an absolute maximum IN-to-GND voltage of −0.3 V to 7.5 V. |
| 3 | OUT | power_out | Regulated output voltage pin, with an absolute maximum OUT-to-GND voltage of −0.3 V to 6 V and a maximum DC output current of 1.5 A. |
| 4 | SENSE | input | Remote voltage sense pin that improves regulation at remote loads on the LP3875, with SENSE-to-GND voltage limited to VOUT. |
| 5 | GND | power_in | Ground reference pin for the regulator, which is the return for the IN and OUT pins. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-223-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |

## 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 tolerance | VOUT | -1.5 | 0 | 1.5 | % | VOUT +1 V ≤ VIN ≤ 7 V, 10 mA ≤ IL ≤ 1.5 A | 5 |
| Output voltage tolerance over temperature | VOUT | -3 |  | 3 | % | VOUT +1 V ≤ VIN ≤ 7 V, 10 mA ≤ IL ≤ 1.5 A, -40°C ≤ TJ ≤ 125°C | 5 |
| Dropout voltage |  |  | 38 | 50 | mV | IL = 150 mA | 5 |
| Dropout voltage over temperature |  |  |  | 60 | mV | IL = 150 mA, -40°C ≤ TJ ≤ 125°C | 5 |
| Dropout voltage |  |  | 380 | 450 | mV | IL = 1.5 A | 5 |
| Dropout voltage over temperature |  |  |  | 550 | mV | IL = 1.5 A, -40°C ≤ TJ ≤ 125°C | 5 |
| Ground pin current in normal operation mode | IGND |  | 5 | 9 | mA | IL = 150 mA | 5 |
| Ground pin current in normal operation mode over temperature | IGND |  |  | 10 | mA | IL = 150 mA, -40°C ≤ TJ ≤ 125°C | 5 |
| Ground pin current in normal operation mode | IGND |  | 6 | 14 | mA | IL = 1.5 A | 5 |
| Ground pin current in normal operation mode over temperature | IGND |  |  | 15 | mA | IL = 1.5 A, -40°C ≤ TJ ≤ 125°C | 5 |
| Ground pin current in shutdown mode | IGND |  | 0.01 | 10 | µA | VSD ≤ 0.3 V | 5 |
| Ground pin current in shutdown mode over temperature | IGND |  |  | 50 | µA | -40°C ≤ TJ ≤ 85°C | 5 |
| Shutdown threshold high | VSDT | 2 |  |  | V | Output = High, -40°C ≤ TJ ≤ 125°C | 5 |
| Shutdown threshold low | VSDT |  |  | 0.3 | V | Output = Low, -40°C ≤ TJ ≤ 125°C | 5 |
| ERROR flag threshold over temperature | VT | 5 |  | 16 | % | See(5), -40°C ≤ TJ ≤ 125°C | 5 |
| ERROR flag threshold hysteresis over temperature | VTH | 2 |  | 8 | % | See(5), -40°C ≤ TJ ≤ 125°C | 5 |
| ERROR flag saturation voltage over temperature | VEF(Sat) |  |  | 0.1 | V | Isink = 100 µA, -40°C ≤ TJ ≤ 125°C | 5 |
| VIN supply voltage | VIN | 2.5 |  | 7 | V |  | 4 |
| Shutdown (SD) voltage | VSD | -0.3 |  | 7 | V |  | 4 |
| Maximum operating current (DC) | IOUT |  |  | 1.5 | A |  | 4 |
| Junction temperature | TJ | -40 |  | 125 | °C |  | 4 |
| Lead temperature (soldering) |  |  |  | 260 | °C | soldering, 5 sec. | 4 |
| IN pin to GND pin voltage | VIN | -0.3 |  | 7.5 | V |  | 4 |
| Shutdown (SD) pin to GND pin voltage | VSD | -0.3 |  | 7.5 | V |  | 4 |
| OUT pin to GND pin voltage | VOUT | -0.3 |  | 6 | V |  | 4 |
| Storage temperature | Tstg | -65 |  | 150 | °C |  | 4 |
| Junction-to-ambient thermal resistance (SOT-223, NDC) | RθJA |  | 65.2 |  | °C/W | 5 pins, SOT-223 NDC package | 4 |
| Junction-to-case (top) thermal resistance (SOT-223, NDC) | RθJC(top) |  | 47.2 |  | °C/W | 5 pins, SOT-223 NDC package | 4 |
| Junction-to-board thermal resistance (SOT-223, NDC) | RθJB |  | 9.9 |  | °C/W | 5 pins, SOT-223 NDC package | 4 |
| Junction-to-top characterization parameter (SOT-223, NDC) | ψJT |  | 3.4 |  | °C/W | 5 pins, SOT-223 NDC package | 4 |
| Junction-to-board characterization parameter (SOT-223, NDC) | ψJB |  | 9.7 |  | °C/W | 5 pins, SOT-223 NDC package | 4 |

## CAD (KiCad official)

- Symbol: `LP3875EMP-5.0`
- Footprint: `Package_TO_SOT_SMD:SOT-223-5`
- 3D model: SOT-223-5 (KiCad packages3D, STEP)
- 3D model files: `lp3875emp-5-0-etched.step` / `lp3875emp-5-0-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lp3875emp-5-0.step` / `lp3875emp-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/lit/ds/symlink/lp3875.pdf) (30 pp, sha256 `6a8b5890967893c1`, retrieved 2026-11-06, tier: manufacturer)
- **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/lp3875emp-5-0-datasheet.pdf)