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LM2735XMFX

Public Made by Adom

by adom

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

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Contents

README

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LM2735XMFX

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

LM2735XMFX 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 Output switch node. Drain of the internal 170-mΩ NMOS power switch (2.1-A rating, absolute-max SW voltage -0.5 V to 26.5 V). Connect to the boost inductor and the anode of the output Schottky diode.
2 GND power_in Signal and power ground pin (SOT-23 combines AGND and PGND). Place the bottom resistor of the feedback network as close as possible to this pin and route with a low-impedance return to the input/output capacitor grounds.
3 FB input Feedback input to the internal error amplifier. Connect to an external resistor divider from the output to set VOUT via VFB = 1.23 V (±2 %). Absolute-max FB voltage -0.5 V to 3 V.
4 EN input Active-high shutdown/enable control input. Logic high enables normal operation; logic low places the device into ~80-nA standby. Do not float; do not drive above VIN + 0.3 V (absolute max -0.5 V to 7 V).
5 VIN power_in Supply voltage for the power stage and internal control circuitry. Operating range 2.7 V to 5.5 V (absolute max 7 V). Bypass locally with a low-ESR ceramic capacitor referenced 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.

  • LM2735XMFX
  • LM2735XMFXXSD
  • LM2735XMFXXSDX
  • LM2735XMFXXMY

CAD (KiCad official)

  • Symbol: LM2735XMFX
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: lm2735xmfx-etched.step / lm2735xmfx-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm2735xmfx.step / lm2735xmfx.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (None pp, sha256 32efa6e88b2375a9, 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