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Contents

README

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LM2734XQMKX

Texas Instruments · DC-DC Converters · TSOT-23-6

LM2734XQMKX from Texas Instruments, in a TSOT-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 BOOST input Boost voltage that drives the internal NMOS control switch; absolute maximum rating 30 V, minimum 1.6 V above SW pin for proper operation.
2 GND power_in Signal and power ground pin; place the bottom resistor of the feedback network as close as possible to this pin for accurate regulation.
3 FB input Feedback pin for external resistor divider to set output voltage; absolute maximum rating 3 V; internal reference voltage 0.8 V nominal.
4 EN input Enable control input; logic high enables operation; absolute maximum rating VIN + 0.3 V; do not allow pin to float.
5 VIN power_in Input supply voltage; recommended operating range 3 V to 20 V; connect a bypass capacitor to this pin.
6 SW output Output switch connects to the inductor, catch diode, and bootstrap capacitor; absolute maximum rating 24 V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TSOT-23-6
Category Power Management (PMIC)
Pins 6

CAD (KiCad official)

  • Symbol: LM2734XQMKX
  • Footprint: Package_TO_SOT_SMD:TSOT-23-6
  • 3D model: TSOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: lm2734xqmkx-etched.step / lm2734xqmkx-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm2734xqmkx.step / lm2734xqmkx.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (39 pp, sha256 7cee5ef0e3f9c756, retrieved 2026-09-27, tier: lcsc)
  • 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 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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