component
LMR62421XMFE
Public Made by Adomby adom
Texas Instruments DC-DC Converters, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLMR62421XMFE
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lmr62421xmfe.step/lmr62421xmfe.glbare 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, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).