LM3880QMFE-1AF

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

LM3880QMFE-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; the datasheet specifies VCC to GND of 2.7 V to 5.5 V and recommends placing the supply connection as close as possible to the device, with a 0.1 µF ceramic bypass capacitor where noise is present.
2	GND	power_in	Ground reference pin for the sequencer.
3	EN	input	Precision enable input with a 1.0 V to 1.4 V threshold (1.25 V typical) and a 7 µA internal pull-up; the datasheet recommends not tying EN directly to VCC and keeping it below threshold until VCC reaches its minimum operating voltage.
4	FLAG3	output	Open-drain output flag 3, released last in the power-up sequence and asserted first in power-down; it must be pulled up, typically with 100 kΩ, and FLAG pins are limited to -0.3 V to 6 V with 50 mA maximum output current.
5	FLAG2	output	Open-drain output flag 2, sequenced between FLAG1 and FLAG3; it must be pulled up, typically with 100 kΩ, and FLAG pins are limited to -0.3 V to 6 V with 50 mA maximum output current.
6	FLAG1	output	Open-drain output flag 1, released first in the power-up sequence; it must be pulled up, typically with 100 kΩ, and FLAG pins are limited to -0.3 V to 6 V with 50 mA maximum output current.

Key specifications

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

CAD (KiCad official)

Symbol: LM3880QMFE-1AF
Footprint: Package_TO_SOT_SMD:SOT-23-6
3D model: SOT-23-6 (KiCad packages3D, STEP)
3D model files: lm3880qmfe-1af-etched.step / lm3880qmfe-1af-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm3880qmfe-1af.step / lm3880qmfe-1af.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: Texas Instruments datasheet (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

# LM3880QMFE-1AF

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

LM3880QMFE-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; the datasheet specifies VCC to GND of 2.7 V to 5.5 V and recommends placing the supply connection as close as possible to the device, with a 0.1 µF ceramic bypass capacitor where noise is present. |
| 2 | GND | power_in | Ground reference pin for the sequencer. |
| 3 | EN | input | Precision enable input with a 1.0 V to 1.4 V threshold (1.25 V typical) and a 7 µA internal pull-up; the datasheet recommends not tying EN directly to VCC and keeping it below threshold until VCC reaches its minimum operating voltage. |
| 4 | FLAG3 | output | Open-drain output flag 3, released last in the power-up sequence and asserted first in power-down; it must be pulled up, typically with 100 kΩ, and FLAG pins are limited to -0.3 V to 6 V with 50 mA maximum output current. |
| 5 | FLAG2 | output | Open-drain output flag 2, sequenced between FLAG1 and FLAG3; it must be pulled up, typically with 100 kΩ, and FLAG pins are limited to -0.3 V to 6 V with 50 mA maximum output current. |
| 6 | FLAG1 | output | Open-drain output flag 1, released first in the power-up sequence; it must be pulled up, typically with 100 kΩ, and FLAG pins are limited to -0.3 V to 6 V with 50 mA maximum output current. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `LM3880QMFE-1AF`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `lm3880qmfe-1af-etched.step` / `lm3880qmfe-1af-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm3880qmfe-1af.step` / `lm3880qmfe-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/lm3880qmfe-1af-datasheet.pdf)