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Contents

README

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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 (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