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LMR62421XMFE

Public Made by Adom

by adom

Texas Instruments DC-DC Converters, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
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docs lmr62421xmfe: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 2d ago
viewers lmr62421xmfe: viewers · Ray 9d ago
lmr62421xmfe-etched.fit.json lmr62421xmfe: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 2d ago
lmr62421xmfe-etched.glb lmr62421xmfe: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 2d ago
lmr62421xmfe-etched.step lmr62421xmfe: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 2d ago
lmr62421xmfe.glb Publish 0.1.0 · Ray 9d ago
lmr62421xmfe.kicad_mod Publish 0.1.0 · Ray 9d ago
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README.md Initial commit: component/lmr62421xmfe · Ray 9d ago

LMR62421XMFE

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

LMR62421XMFE from Texas Instruments, in a SOT-23-5. 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 SW output Switch node for boost converter; connect to inductor and output diode.
2 GND power_in Signal and power ground reference pin; place feedback network bottom resistor as close as possible to this pin.
3 FB input Feedback input pin for external resistor divider voltage regulation; operates at nominal feedback voltage of 1.255V (min 1.230V, max 1.280V over −40 to +125°C junction temperature range).
4 EN input Shutdown control input requiring logic high (≥1.8V typical) for operation and logic low (≤0.4V typical) for shutdown; voltage must not exceed VIN + 0.3V.
5 VIN power_in Supply voltage input for power stage and switching regulator with operating voltage range 2.7V to 5.5V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-23-5
Category Power Management (PMIC)
Pins 5

CAD (KiCad official)

  • Symbol: LMR62421XMFE
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: lmr62421xmfe-etched.step / lmr62421xmfe-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lmr62421xmfe.step / lmr62421xmfe.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (30 pp, sha256 7e3326c2cd12601a, retrieved 2026-09-26, tier: lcsc)
  • 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