component

LM2733YMFX

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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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3D Model

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Datasheet

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Contents

README

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LM2733YMFX

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

LM2733YMFX 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 the internal 40-V, 1-A DMOS FET switch. Connect to the boost inductor and Schottky rectifier; absolute maximum SW voltage is 40 V.
2 GND power_in Analog and power ground. Common return for input capacitor, feedback divider, and the internal FET switch.
3 FB input Feedback input connected to the external resistive divider that sets the output voltage. Regulates to VFB = 1.230 V (typ); max FB pin voltage 6 V, IFB = 60 nA typ.
4 SHDN input Active-low shutdown control input. Drive low (< 0.5 V) to disable the converter and reduce quiescent current below 1 uA; tie to VIN if the shutdown function is not used. Absolute max SHDN voltage is VIN + 0.3 V.
5 VIN power_in Analog and power input supply. Recommended operating range 2.7 V to 14 V (absolute max 14.5 V). Bypass with a low-ESR ceramic capacitor to GND.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • LM2733YMFX

CAD (KiCad official)

  • Symbol: LM2733YMFX
  • 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 (27 pp, sha256 1ef1db6725a99873, retrieved 2026-08-17, tier: manufacturer)
  • 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