# LM3880QMFE-1AB

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

LM3880QMFE-1AB 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 with a 2.7 V to 5.5 V recommended operating range (absolute maximum 6 V), to be placed as close to the input supply as possible. |
| 2 | GND | power_in | Ground reference pin for the sequencer. |
| 3 | EN | input | Precision enable pin with a 1.0 V to 1.4 V threshold (1.25 V typical) and a 7 µA internal pull-up current at VEN = 0 V, which drives the power-up and power-down sequences. |
| 4 | FLAG3 | output | Open-drain output flag 3 that releases last in the power-up sequence and must be pulled up to a voltage no higher than VCC + 0.3 V; maximum FLAG output sink current is 50 mA. |
| 5 | FLAG2 | output | Open-drain output flag 2 that releases after FLAG1 during power-up and follows the reverse order during power-down; maximum FLAG output sink current is 50 mA. |
| 6 | FLAG1 | output | Open-drain output flag 1 that releases first during power-up and must be pulled up with a resistor (100 kΩ typical); maximum FLAG output sink current is 50 mA. |

## 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 |
|---|---|---|---|---|---|---|---|
| Static operating current | IQ |  | 25 | 80 | µA |  | 5 |
| FLAGx leakage current | IFLAG |  | 1 | 20 | nA | VFLAGx = 3.3V | 5 |
| FLAGx low-level output voltage | VOL |  |  | 0.4 | V | IFLAGx = 1.2mA | 5 |
| Timer delay 1 accuracy | td1 | -15 |  | 15 | % | All timing options other than 2ms | 5 |
| Timer delay 2 accuracy | td2 | -15 |  | 15 | % | All timing options other than 2ms | 5 |
| Timer delay 3 accuracy | td3 | -15 |  | 15 | % | All timing options other than 2ms | 5 |
| Timer delay 4 accuracy | td4 | -15 |  | 15 | % | All timing options other than 2ms | 5 |
| Timer delay 5 accuracy | td5 | -15 |  | 15 | % | All timing options other than 2ms | 5 |
| Timer delay 6 accuracy | td6 | -15 |  | 15 | % | All timing options other than 2ms | 5 |
| Timing delay ratio | (td(x), 400µs)/td(x+1) | 95 |  | 105 | % | For x = 1 or 4 | 5 |
| EN pin threshold | VEN | 1 | 1.25 | 1.4 | V |  | 5 |
| EN pin pull-up current | IEN |  | 7 |  | µA | VEN = 0V | 5 |
| VCC voltage | VCC | -0.3 |  | 6 | V |  | 4 |
| EN, FLAG1, FLAG2, FLAG3 voltage |  | -0.3 |  | 6 | V |  | 4 |
| FLAG maximum output current when on |  |  |  | 50 | mA | FLAG on, maximum output current | 4 |
| Maximum junction temperature |  |  |  | 150 | °C |  | 4 |
| Lead temperature |  |  |  | 260 | °C | Soldering, 5 s | 4 |
| Storage temperature | Tstg | -65 |  | 150 | °C |  | 4 |
| ESD human body model | V(ESD) | -2 |  | 2 | kV | Human body model (HBM), per AEC Q100-002 | 4 |
| VCC supply voltage | VCC | 2.7 |  | 5.5 | V | VCC to GND | 4 |
| EN, FLAG1, FLAG2, FLAG3 voltage |  | -0.3 |  |  | V | Maximum printed as VCC+0.3 V | 4 |
| Operating junction temperature |  | -40 |  | 125 | °C |  | 4 |
| Junction-to-ambient thermal resistance | RθJA |  | 187.6 |  | °C/W | 6-pin DBV (SOT-23) | 4 |
| Junction-to-case (top) thermal resistance | RθJC(top) |  | 127.4 |  | °C/W | 6-pin DBV (SOT-23) | 4 |
| Junction-to-board thermal resistance | RθJB |  | 31.5 |  | °C/W | 6-pin DBV (SOT-23) | 4 |
| Junction-to-top characterization parameter | ψJT |  | 23.3 |  | °C/W | 6-pin DBV (SOT-23) | 4 |
| Junction-to-board characterization parameter | ψJB |  | 31 |  | °C/W | 6-pin DBV (SOT-23) | 4 |

## CAD (KiCad official)

- Symbol: `LM3880QMFE-1AB`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `lm3880qmfe-1ab-etched.step` / `lm3880qmfe-1ab-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm3880qmfe-1ab.step` / `lm3880qmfe-1ab.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 2026-11-06, 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/lm3880qmfe-1ab-datasheet.pdf)