# LM4041CEM3-ADJ

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

LM4041CEM3-ADJ from Texas Instruments, in a SOT-23. 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 | FB | input | Feedback pin for the adjustable output voltage, which the datasheet states can be set from 1.24 V to 10 V by an external resistor divider (VO = VREF[(R2/R1)+1]); the pin can also be driven from an external voltage in open-loop comparator mode. |
| 2 | - | bidirectional | Negative terminal (cathode) that shunts current and sets the output voltage; the recommended reverse current is 60 µA to 12 mA, with an absolute maximum reverse current of 20 mA and an absolute maximum output voltage of 15 V. |
| 3 | + | power_in | Positive terminal (anode), normally grounded, with an absolute maximum forward current of 10 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23 |
| Category | Power Management (PMIC) |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `LM4041CEM3-ADJ`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `lm4041cem3-adj-etched.step` / `lm4041cem3-adj-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm4041cem3-adj.step` / `lm4041cem3-adj.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/lm4041-n) (54 pp, sha256 `cd8ea9cf52a32021`, retrieved 2026-10-07, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/lm4041cem3-adj-datasheet.pdf)