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LM2611AMFX

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by Ray

Texas Instruments DC-DC Converters, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Datasheet

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Contents

README

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LM2611AMFX

Texas Instruments · DC-DC Converters · SOT-23-5

LM2611AMFX from Texas Instruments, in a SOT-23-5. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 SW output Drain of internal DMOS power switch. Connect at the node of the input inductor and Cuk capacitor. Absolute max SW voltage: -0.4 V to 36 V.
2 GND power_in Analog and power ground reference for the device.
3 NFB input Negative feedback pin. Connect to output via an external resistor divider to set the output voltage. Reference is -1.23 V (typ); NFB bias current ~-4.7 µA at VNFB = -1.23 V.
4 SHDN input Active-low shutdown control input. VIN = device on; ground = device in shutdown. Enable threshold 1.5 V (max), disable 0.5 V (min). Absolute max -0.4 V to 14.5 V.
5 VIN power_in Analog and power input, 2.7 V to 14 V operating (14.5 V abs max). Filter high-frequency noise with a 0.1-µF ceramic capacitor placed close to the pin.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-23-5
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • LM2611AMFX

CAD (KiCad official)

  • Symbol: LM2611AMFX
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Texas Instruments datasheet (29 pp, sha256 89a671d61e18376d, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF