# LM3880QMFX-1AF

**Texas Instruments** · Supervisor And Reset ICs · SOT-23-6

LM3880QMFX-1AF from Texas Instruments, in a SOT-23-6. 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 | VCC | power_in | Input supply pin for the sequencer, recommended 2.7 V to 5.5 V with an absolute maximum of 6 V; place it as close to the input supply as possible. |
| 2 | GND | power_in | Ground reference pin for the device. |
| 3 | EN | input | Precision enable input with a 1.25 V reference threshold (1.0 V to 1.4 V) and a 7 µA internal pull-up; it must not be tied directly to VCC and its recommended range is -0.3 V to VCC + 0.3 V. |
| 4 | FLAG3 | output | Open-drain output flag 3 that must be pulled up (100 kΩ typical) to a supply no higher than VCC + 0.3 V, with an absolute maximum of 6 V and a 50 mA maximum output current when on. |
| 5 | FLAG2 | output | Open-drain output flag 2 that must be pulled up (100 kΩ typical) to a supply no higher than VCC + 0.3 V, with an absolute maximum of 6 V and a 50 mA maximum output current when on. |
| 6 | FLAG1 | output | Open-drain output flag 1 that must be pulled up (100 kΩ typical) to a supply no higher than VCC + 0.3 V, with an absolute maximum of 6 V and a 50 mA maximum output current when on. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-6 |
| Category | Power Management (PMIC) |
| Pins | 6 |

## CAD (KiCad official)

- Symbol: `LM3880QMFX-1AF`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `lm3880qmfx-1af-etched.step` / `lm3880qmfx-1af-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm3880qmfx-1af.step` / `lm3880qmfx-1af.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/lm3880-q1) (27 pp, sha256 `cff19f703872dfd7`, retrieved 2026-10-08, 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/lm3880qmfx-1af-datasheet.pdf)