component
LMR14020QDPRTQ1
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.
main
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{
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"description": "Texas Instruments DC-DC Converters, WSON-10-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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"power supply chip",
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"component": {
"mpn": "LMR14020QDPRTQ1",
"manufacturer": "Texas Instruments",
"package": "WSON-10-EP(4x4)",
"pin_count": 11,
"category": "Power Supply Chip",
"subcategory": "DC-DC Converters",
"datasheet": "https://www.ti.com/cn/lit/gpn/lmr14020-q1",
"parts": {
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"lbr": "lmr14020qdprtq1.lbr"
},
"distributor_links": {
"lcsc": "C2071772",
"digikey": "296-44760-2-ND",
"mouser": "595-LMR14020QDPRTQ1"
},
"distributor_check": {
"checked_at": "2026-10-08T15:31:09Z",
"source": "Component Ocean /api/assign-pns",
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"pn": "296-44760-2-ND",
"status": "found"
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"pn": "595-LMR14020QDPRTQ1",
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},
"pins": [
{
"number": "1",
"name": "BOOT",
"type": "power_out",
"description": "Bootstrap capacitor connection for the high-side MOSFET gate driver; connect a quality 0.1 µF X7R or X5R capacitor rated 16 V or higher between BOOT and SW."
},
{
"number": "2",
"name": "VIN",
"type": "power_in",
"description": "Supply input for the regulator, operating from 4 V to 40 V; the path from VIN to the high-frequency bypass capacitor CIN and GND must be kept as short as possible."
},
{
"number": "3",
"name": "VIN",
"type": "power_in",
"description": "Supply input for the regulator (second VIN pin, same connection as pin 2), operating from 4 V to 40 V; keep the path to CIN and GND as short as possible."
},
{
"number": "4",
"name": "EN",
"type": "input",
"description": "Enable input with an internal pull-up current source; pulling it below 1.2 V disables the device, while leaving it floating or tying it to VIN enables it, and two resistors can set the input UVLO. EN absolute maximum is 44 V and recommended range is 0 V to 40 V."
},
{
"number": "5",
"name": "RT/SYNC",
"type": "input",
"description": "Timing resistor connection or external clock input that sets the switching frequency (200 kHz to 2.5 MHz in RT mode, 250 kHz to 2.3 MHz when synchronized); it must not be left floating or shorted to ground, and a clock with high level ≥1.7 V, low level ≤0.5 V and pulse width >30 ns is required for sync."
},
{
"number": "6",
"name": "SS",
"type": "input",
"description": "Soft-start control pin; a capacitor from SS to GND sets the soft-start time using the internal ~3 µA charge current, and for the WSON package the maximum CSS is 4.7 nF."
},
{
"number": "7",
"name": "FB",
"type": "input",
"description": "Feedback input connected to the output divider that sets VOUT (VREF typically 0.75 V); connect directly to VOUT for a fixed output, and do not short this pin to ground during operation. The recommended FB range is 0 V to 5 V."
},
{
"number": "8",
"name": "PGOOD",
"type": "output",
"description": "Open-drain power-good flag that needs a pull-up of 10 kΩ to 100 kΩ to a logic rail or DC voltage, and the voltage on this pin must never exceed 7 V."
},
{
"number": "9",
"name": "GND",
"type": "power_in",
"description": "System ground pin for the regulator, to be connected to the system ground plane."
},
{
"number": "10",
"name": "SW",
"type": "output",
"description": "Regulator switching output, internally connected to the low-side power MOSFET, which connects to the power inductor; SW is rated from -3 V to 44 V."
},
{
"number": "11",
"name": "Thermal Pad",
"type": "power_in",
"description": "Exposed thermal pad that is the main heat-dissipation path from the die; it must be connected to a ground layer on the PCB."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-haiku-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: Package size check: the requested hint is WSON-10-EP (4x4). The datasheet's ordering table gives the; Pin 1 is BOOT for the WSON-10 package. Table 4-1 and Figure 4-2 agree on the pin numbers (FB=7, SS=6; Pin types were mapped from the datasheet's P/A/G codes to KiCad ERC classes: BOOT as power_out, SW a"
],
"pages_sent": 27,
"cost_usd": 0.1436,
"at": "2026-10-08T15:30:50"
},
"datasheet": {
"url": "https://www.ti.com/cn/lit/gpn/lmr14020-q1",
"pages": 37,
"sha256": "6e24800c10410b48",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 11,
"described": 11,
"cites_pages": true,
"refuses_to_fabricate": true
}
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"checked": "2026-10-08",
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