component
LMR14030SQDPRRQ1
Public Made by Adomby adom
Texas Instruments DC-DC Converters, WSON-10-EP(4x4). 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
markdownLMR14030SQDPRRQ1
Texas Instruments · DC-DC Converters · WSON-10-EP(4x4)
LMR14030SQDPRRQ1 from Texas Instruments, in a WSON-10-EP(4x4). 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 | BOOT | power_in | Bootstrap capacitor connection for high-side MOSFET driver; connect 0.1μF capacitor between BOOT and SW pins. |
| 2 | VIN | power_in | Power supply input, 4V to 40V; connect to high-frequency bypass capacitor CIN with shortest possible PCB trace from VIN pin to GND. |
| 3 | VIN | power_in | Power supply input, 4V to 40V; second VIN pin requiring high-frequency bypass capacitor CIN connection. |
| 4 | EN | input | Enable input with internal pull-up current source; device disabled when EN < 1.2V, enabled when EN > 1.2V (typical), floating or connected to VIN enables device. |
| 5 | RT/SYNC | input | Resistor timing or external clock input (250kHz to 2.3MHz); maintains fixed voltage when using external ground resistor for frequency programming or presents high-impedance clock input when synchronizing to external clock. |
| 6 | SS | input | Soft-start control input; connect capacitor to set soft-start time from 0V to VREF, maximum 4.7nF for WSON package. |
| 7 | FB | input | Feedback input for output voltage regulation; connect to output voltage divider to set VOUT, do not short to ground during device operation. |
| 8 | PGOOD | output | Power good open-drain output; pulls low when output voltage deviates beyond ±8% (typical) from nominal, requires 10kΩ to 100kΩ pull-up resistor to voltage not exceeding 7V. |
| 9 | GND | power_in | System ground reference pin; primary connection point for all ground signals. |
| 10 | SW | output | Switching output node internally connected to low-side power MOSFET; connect to output inductor L for buck converter operation. |
| 11 | Thermal Pad | power_in | Primary thermal dissipation path for die; must be connected to PCB ground plane via thermal vias for proper heat transfer. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | WSON-10-EP(4x4) |
| Category | Power Supply Chip |
| Pins | 11 |
CAD (KiCad official)
- Symbol:
LMR14030SQDPRRQ1 - Footprint:
Package_SON:WSON-10-1EP_4x4mm_P0.8mm_EP2.6x3mm - 3D model: WSON-10-EP(4x4) (KiCad packages3D, STEP)
- 3D model files:
lmr14030sqdprrq1-etched.step/lmr14030sqdprrq1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lmr14030sqdprrq1.step/lmr14030sqdprrq1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (37 pp, sha256
1f91b09fa6ebdebe, retrieved 2026-10-03, 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 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-5-5(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).