component
LMR14203XMK
Public Made by Adomby adom
Texas Instruments DC-DC Converters, SOT-23-6. 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
markdownLMR14203XMK
Texas Instruments · DC-DC Converters · SOT-23-6
LMR14203XMK from Texas Instruments, in a SOT-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 | CB | output | SW FET gate bias voltage for bootstrap capacitor connection between CB and SW; maximum 7V above SW voltage. |
| 2 | GND | power_in | Ground connection. |
| 3 | FB | input | Feedback pin with 0.765V reference voltage; resistor divider range 100-10kΩ; input bias current 0.1-1.0µA; maximum voltage 5V. |
| 4 | SHDN | input | Logic level shutdown input; voltage range -0.3V to (VIN+0.3V) <45V; pull to GND to disable, pull high to enable. |
| 5 | VIN | power_in | Power input voltage pin; operating range 4.5V to 42V. |
| 6 | SW | output | Power FET output; voltage range -0.3V to +45V; connect to inductor, diode, and bootstrap capacitor. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-6 |
| Category | Power Management (PMIC) |
| Pins | 6 |
CAD (KiCad official)
- Symbol:
LMR14203XMK - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
lmr14203xmk-etched.step/lmr14203xmk-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lmr14203xmk.step/lmr14203xmk.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (19 pp, sha256
22ad23ec1e4b45d6, retrieved 2026-09-27, 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).