component
LMR14030QDPRRQ1
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
markdownLMR14030QDPRRQ1
Texas Instruments · DC-DC Converters · WSON-10-EP(4x4)
LMR14030QDPRRQ1 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 point for high-side MOSFET gate driver; connect high-quality 0.1μF capacitor between BOOT and SW pins. |
| 2 | VIN | power_in | Power supply input, operating voltage range 4V to 40V; connection to supply and bypass capacitor with shortest possible path to ground. |
| 3 | VIN | power_in | Power supply input, operating voltage range 4V to 40V; dual connection point to minimize supply path inductance. |
| 4 | EN | input | Enable control input with internal 1μA pull-up current source; pull below 1.2V threshold to disable device, above 1.2V to enable; under-voltage lockout can be adjusted with external resistor divider. |
| 5 | RT/SYNC | input | Frequency programming resistor to ground or external clock input; programs switching frequency 200kHz to 2.5MHz with resistor, or 250kHz to 2.3MHz with external clock; clock levels high ≥1.7V, low ≤0.5V, minimum pulse width ≥30ns. |
| 6 | SS | input | Soft-start capacitor connection point; charges at 3μA internal current to program soft-start time; maximum capacitor value 4.7nF for WSON package. |
| 7 | FB | input | Feedback voltage input from output divider to set VOUT; internal reference voltage 0.75V; do not allow short to ground during operation. |
| 8 | PGOOD | tri_state | Open-drain power good output flag indicating output voltage within regulation range (94-109% of VREF tolerance); requires 10kΩ to 100kΩ external pull-up resistor; maximum pin voltage 7V. |
| 9 | GND | power_in | System ground reference and return path for all circuits. |
| 10 | SW | output | Switching output node connected to internal low-side MOSFET and output power inductor; output voltage swings between ground and approximately VIN. |
| 11 | Thermal Pad | power_in | Primary thermal dissipation path for the die; must be connected to PCB ground plane to minimize junction-to-board thermal impedance. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | WSON-10-EP(4x4) |
| Category | Power Management (PMIC) |
| Pins | 11 |
CAD (KiCad official)
- Symbol:
LMR14030QDPRRQ1 - Footprint:
Package_SON:WSON-10-1EP_4x4mm_P0.8mm_EP2.6x3mm - 3D model: WSON-10-EP(4x4) (KiCad packages3D, STEP)
- 3D model files:
lmr14030qdprrq1-etched.step/lmr14030qdprrq1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lmr14030qdprrq1.step/lmr14030qdprrq1.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).