# LP3982IMM-2.5

**Texas Instruments** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · VSSOP-8-0.65mm

LP3982IMM-2.5 from Texas Instruments, in a VSSOP-8-0.65mm. 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 | OUT | power_out | Regulated output voltage of the LDO. |
| 2 | IN | power_in | Input supply voltage to the regulator, specified from 2.5 V to 6 V with absolute maximum of 6.5 V relative to GND. |
| 3 | GND | power_in | Ground reference; all voltages in the datasheet are referenced to this pin. |
| 4 | OUT | power_out | Regulated output voltage of the LDO (second OUT pin, electrically tied to pin 1). |
| 5 | SET | unconnected | In the adjustable version a resistor divider on this pin sets the output voltage; the pin is internally disconnected for the fixed versions, including the 2.5 V part. |
| 6 | CC | passive | Connect a capacitor between CC and ground to reduce output noise; the optimum value is 33 nF. |
| 7 | SHDN | input | Pulling SHDN high turns the part on and pulling it low turns it off. |
| 8 | FAULT | output | Active-low open-drain output that goes low during current limit, thermal shutdown, or approaching dropout, requires a pullup resistor, and has a 20 mA maximum fault sink current. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VSSOP-8-0.65mm |
| Category | Power Management (PMIC) |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `LP3982IMM-2.5`
- Footprint: `Package_SO:VSSOP-8_2.3x2mm_P0.5mm`
- 3D model: VSSOP-8-0.65mm (KiCad packages3D, STEP)
- 3D model files: `lp3982imm-2-5-etched.step` / `lp3982imm-2-5-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lp3982imm-2-5.step` / `lp3982imm-2-5.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/lp3982) (30 pp, sha256 `f8dc0ff43bb7195c`, 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/lp3982imm-2-5-datasheet.pdf)