# LM4132DMFX-3.0

**Texas Instruments** · Voltage Reference · SOT-23-5

LM4132DMFX-3.0 from Texas Instruments, in a SOT-23-5. 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 | N/C | unconnected | No connect pin; leave floating. |
| 2 | GND | power_in | Ground reference for the device. |
| 3 | EN | input | Enable pin: tie to VIN for normal operation (enabled at 65% of VIN to VIN) or pull to 0 V to 35% of VIN for shutdown, and do not drive it above VIN because the device does not operate correctly for VEN > VIN. |
| 4 | VIN | power_in | Input supply; must be at least VREF + 400 mV (ILOAD ≤ 10 mA) and no more than 5.5 V recommended maximum, with 6 V the absolute maximum on any input. |
| 5 | VREF | power_out | Precision reference voltage output that sources up to 20 mA and needs no output capacitor (short-circuit current is limited to 75 mA to ground). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |

## CAD (KiCad official)

- Symbol: `LM4132DMFX-3.0`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `lm4132dmfx-3-0-etched.step` / `lm4132dmfx-3-0-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm4132dmfx-3-0.step` / `lm4132dmfx-3-0.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/lm4132) (44 pp, sha256 `4bd8402ff026fdf1`, retrieved 2026-10-08, 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/lm4132dmfx-3-0-datasheet.pdf)