# LM3880QMF-1AE

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

LM3880QMF-1AE 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, operating range 2.7 V to 5.5 V, to be placed as close to the input supply as possible with a 0.1 µF ceramic bypass recommended 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) that must stay below threshold until VCC reaches its minimum operating voltage, and it should not be tied to VCC. |
| 4 | FLAG3 | output | Open-drain output flag 3 that requires a pull-up, typically 100 kΩ, with VOL of 0.4 V maximum at 1.2 mA and a maximum voltage of 6 V. |
| 5 | FLAG2 | output | Open-drain output flag 2 that requires a pull-up, typically 100 kΩ, with VOL of 0.4 V maximum at 1.2 mA and a maximum voltage of 6 V. |
| 6 | FLAG1 | output | Open-drain output flag 1 that requires a pull-up, typically 100 kΩ, with VOL of 0.4 V maximum at 1.2 mA and a maximum voltage of 6 V. |

## Key specifications

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

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| 静态工作电流 | IQ |  | 25 | 80 | µA |  | 5 |
| FLAGx 低电平输出 | VOL |  |  | 0.4 | V | IFLAGx = 1.2mA | 5 |
| FLAGx 漏电流 | IFLAG |  | 1 | 20 | nA | VFLAGx = 3.3V | 5 |
| 计时器延迟 1 精度 | td1 | -20 |  | 20 | % | 2ms 时序选项 | 5 |
| 计时器延迟 2 精度 | td2 | -20 |  | 20 | % | 2ms 时序选项 | 5 |
| 计时器延迟 3 精度 | td3 | -20 |  | 20 | % | 2ms 时序选项 | 5 |
| 计时器延迟 4 精度 | td4 | -20 |  | 20 | % | 2ms 时序选项 | 5 |
| 计时器延迟 5 精度 | td5 | -20 |  | 20 | % | 2ms 时序选项 | 5 |
| 计时器延迟 6 精度 | td6 | -20 |  | 20 | % | 2ms 时序选项 | 5 |
| 时序延迟率 |  | 90 |  | 110 | % | 对于 x = 1 或 4，2ms 选项 | 5 |
| EN 引脚阈值 | VEN | 1 | 1.25 | 1.4 | V |  | 5 |
| EN 引脚上拉电流 | IEN |  | 7 |  | µA | VEN = 0V | 5 |
| VCC 至 GND 工作电压 | VCC | 2.7 |  | 5.5 | V | VCC 至 GND | 4 |
| EN、FLAG1、FLAG2、FLAG3 输入电压 |  | -0.3 |  |  | V | EN, FLAG1, FLAG2, FLAG3; upper limit VCC+0.3 V | 4 |
| 结温 | TJ | -40 |  | 125 | °C |  | 4 |
| VCC 绝对最大电压 | VCC | -0.3 |  | 6 | V |  | 4 |
| EN、FLAG1、FLAG2、FLAG3 绝对最大电压 |  | -0.3 |  | 6 | V | EN, FLAG1, FLAG2, FLAG3 | 4 |
| FLAG 开启最大输出电流 |  |  |  | 50 | mA | FLAG on | 4 |
| 最大结温 | TJ |  |  | 150 | °C |  | 4 |
| 引线温度（焊接时，5s） |  |  |  | 260 | °C | 焊接时，5s | 4 |
| 贮存温度 | Tstg | -65 |  | 150 | °C |  | 4 |
| 结至环境热阻 | RθJA |  | 187.6 |  | °C/W | DBV (SOT-23) 6 引脚 | 4 |
| 结至外壳（顶部）热阻 | RθJC(top) |  | 127.4 |  | °C/W | DBV (SOT-23) 6 引脚 | 4 |
| 结至电路板热阻 | RθJB |  | 31.5 |  | °C/W | DBV (SOT-23) 6 引脚 | 4 |
| 结至顶部特征参数 | ψJT |  | 23.3 |  | °C/W | DBV (SOT-23) 6 引脚 | 4 |
| 结至电路板特征参数 | ψJB |  | 31 |  | °C/W | DBV (SOT-23) 6 引脚 | 4 |

## CAD (KiCad official)

- Symbol: `LM3880QMF-1AE`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `lm3880qmf-1ae-etched.step` / `lm3880qmf-1ae-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm3880qmf-1ae.step` / `lm3880qmf-1ae.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 2026-11-05, tier: manufacturer)
- **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/lm3880qmf-1ae-datasheet.pdf)