component
LT3045EMSE#TRPBF
Public Made by Adomby adom
Analog Devices Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, MSOP-12-EP. KiCad symbol, footprint and 3D as used on Adom boards; pin functions from the manufacturer datasheet.
main
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{
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"type": "component",
"slug": "lt3045emse-trpbf",
"title": "LT3045EMSE#TRPBF",
"brief": "Analog Devices Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, MSOP-12-EP. KiCad symbol, footprint and 3D as used on Adom boards; pin functions from the manufacturer datasheet.",
"version": "0.1.2",
"license": "CC-BY-SA-4.0",
"tags": [
"component",
"power management (pmic)",
"lt3045emse-trpbf",
"board-derived"
],
"component": {
"mpn": "LT3045EMSE#TRPBF",
"manufacturer": "Analog Devices",
"package": "MSOP-12-EP",
"pin_count": 13,
"category": "Power Management (PMIC)",
"subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
"datasheet": "https://www.analog.com/media/en/technical-documentation/data-sheets/lt3045.pdf",
"parts": {
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"footprint": "lt3045emse-trpbf.kicad_mod",
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"model_3d_plain": "lt3045emse-trpbf-etched.glb",
"model_3d_step": "lt3045emse-trpbf-etched.step",
"model_3d_step_plain": "lt3045emse-trpbf.step",
"lbr": "lt3045emse-trpbf.lbr"
},
"distributor_links": {
"digikey": {
"part": "505-LT3045EMSE#TRPBFTR-ND",
"url": "https://www.digikey.com/en/products/detail/analog-devices-inc/LT3045EMSE-TRPBF/6235366"
},
"mouser": {
"part": "584-LT3045EMSE#TRPBF",
"url": "https://www.mouser.com/en/ProductDetail/Analog-Devices/LT3045EMSETRPBF?qs=oahfZPh6IAKqplKW0ams9g%3D%3D"
},
"lcsc": {
"part": "C666577",
"url": "https://www.lcsc.com/product-detail/C666577.html"
}
},
"pins": [
{
"number": "1",
"name": "IN",
"type": "power_in",
"description": "Input (pins 1, 2, 3). These pins supply power to the regulator. The LT3045 requires a bypass capacitor at the IN pin; a 4.7µF input bypass capacitor generally suffices, while large load transients may require higher input capacitance. The LT3045 withstands reverse voltages on IN with respect to GND, OUTS and OUT. [datasheet p.12]"
},
{
"number": "2",
"name": "IN",
"type": "passive",
"description": "Input (pins 1, 2, 3). These pins supply power to the regulator. The LT3045 requires a bypass capacitor at the IN pin; a 4.7µF input bypass capacitor generally suffices, while large load transients may require higher input capacitance. The LT3045 withstands reverse voltages on IN with respect to GND, OUTS and OUT. [datasheet p.12]"
},
{
"number": "3",
"name": "IN",
"type": "passive",
"description": "Input (pins 1, 2, 3). These pins supply power to the regulator. The LT3045 requires a bypass capacitor at the IN pin; a 4.7µF input bypass capacitor generally suffices, while large load transients may require higher input capacitance. The LT3045 withstands reverse voltages on IN with respect to GND, OUTS and OUT. [datasheet p.12]"
},
{
"number": "4",
"name": "EN/UV",
"type": "input",
"description": "Enable/UVLO. Pulling EN/UV low places the part in shutdown: quiescent current drops to less than 1µA and the output turns off. A resistor divider between IN, EN/UV and GND can set an input undervoltage lockout threshold; the part typically turns on when EN/UV exceeds 1.24V on its rising edge, with 130mV hysteresis. EN/UV can be driven above the input voltage. If unused, tie EN/UV to IN. Do not float the EN/UV pin. [datasheet p.12]"
},
{
"number": "5",
"name": "PG",
"type": "open_collector",
"description": "Power Good. Open-collector flag that indicates output voltage regulation; PG pulls low if PGFB is below 300mV. If the power good function is not needed, float the PG pin. Do not drive PG more than 0.3V below GND (parasitic substrate diode to GND). [datasheet p.12]"
},
{
"number": "6",
"name": "ILIM",
"type": "passive",
"description": "Current Limit Programming Pin. A resistor between ILIM and GND programs the current limit (scale factor nominally 150mA•kΩ); for best accuracy, Kelvin connect it directly to the GND pin. ILIM sources current proportional (1:500) to output current, so it also serves as a current monitoring pin with a 0V to 300mV range. If the programmable current limit is not needed, tie ILIM to GND. Do not drive ILIM more than 0.3V below GND. [datasheet p.12]"
},
{
"number": "7",
"name": "PGFB",
"type": "input",
"description": "Power Good Feedback. PG pulls high if PGFB increases beyond 300mV on its rising edge, with 7mV hysteresis on its falling edge. A resistor divider between OUT, PGFB and GND sets the power good threshold: 0.3V • (1 + RPG2/RPG1). PGFB also activates the fast start-up circuitry. Tie PGFB to IN if power good and fast start-up are not needed. Do not drive PGFB more than 0.3V below GND. [datasheet p.12]"
},
{
"number": "8",
"name": "SET",
"type": "passive",
"description": "Inverting input of the error amplifier and the regulation set-point. SET sources a precision 100µA current through an external resistor between SET and GND; VSET = ISET • RSET, output range zero to 15V. A capacitor from SET to GND improves noise, PSRR and transient response at the expense of start-up time. For optimum load regulation, Kelvin connect the ground side of the SET resistor directly to the load. Do not drive SET more than 0.3V below GND. [datasheet p.12]"
},
{
"number": "9",
"name": "GND",
"type": "power_in",
"description": "Ground. The exposed pad (pin 13) is an electrical connection to GND; tie it directly to this GND pin. [datasheet p.12]"
},
{
"number": "10",
"name": "OUTS",
"type": "input",
"description": "Output Sense. Non-inverting input to the error amplifier. For optimal transient performance and load regulation, Kelvin connect OUTS directly to the output capacitor and the load, and tie the GND connections of the output capacitor and the SET pin capacitor directly together. Do not drive OUTS more than 0.3V below GND. [datasheet p.13]"
},
{
"number": "11",
"name": "OUT",
"type": "power_out",
"description": "Output (pins 11, 12). Supplies power to the load. For stability, use a minimum 10µF output capacitor with an ESR below 20mΩ and an ESL below 2nH; large load transients require larger output capacitance. Do not drive OUT more than 0.3V below GND. [datasheet p.13]"
},
{
"number": "12",
"name": "OUT",
"type": "passive",
"description": "Output (pins 11, 12). Supplies power to the load. For stability, use a minimum 10µF output capacitor with an ESR below 20mΩ and an ESL below 2nH; large load transients require larger output capacitance. Do not drive OUT more than 0.3V below GND. [datasheet p.13]"
},
{
"number": "13",
"name": "GND",
"type": "passive",
"description": "Exposed pad, GND. The exposed backside is an electrical connection to GND; for proper electrical and thermal performance, solder it to the PCB ground and tie it directly to the GND pin (9). [datasheet p.12]"
}
],
"provenance": {
"datasheet": {
"url": "https://www.analog.com/media/en/technical-documentation/data-sheets/lt3045.pdf",
"pages": 32,
"sha256": "9132e595759a58a0920e7c63997872df02ca9ce598ead76c6f7a31051405eba6",
"source_tier": "mfr",
"retrieved": "2026-10-27",
"edition": "Rev. D, 11/22"
},
"cad": "KiCad official libraries (CC-BY-SA 4.0); footprint and symbol as used on Adom boards",
"pins": {
"total": 13,
"described": 13,
"cites_pages": true,
"refuses_to_fabricate": true
},
"build": {
"tool": "board-derived part page builder 0.1: one-off Claude session scripts in Caleb Taylor's container (retired; not the Adom parts factory)",
"pins": "KiCad symbol from the source board + adom-ds2sf datasheet extraction (claude-opus-4-7)",
"at": "2026-10-16"
}
},
"models_3d": [
{
"file": "lt3045emse-trpbf.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin",
"seat": "z = 0 (PCB top surface)",
"extents_mm": [
4.9,
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"zmin_mm": 0,
"footprint_binding": "identity",
"sha256": "aa91d924a017af1cf431a9ac1a666764cb189eca8b73b8867170c8507343c645",
"checked": "2026-10-16",
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},
{
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"sha256": "ffe31a3b0784f35925731cae4398558ee81a504257f78d3559c9b08991de0358",
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}
]
},
"metadata": {
"specs": {
"Manufacturer": "Analog Devices",
"Package": "MSOP-12-EP",
"Category": "Power Management (PMIC)",
"Pins": "13",
"LCSC": "C666577",
"DigiKey": "505-LT3045EMSE#TRPBFTR-ND",
"Mouser": "584-LT3045EMSE#TRPBF"
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"lt3045emse-trpbf",
"lt3045emse#trpbf"
],
"discovery_pitch": "LT3045EMSE#TRPBF (Analog Devices) component page: pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Caleb",
"email": "[email protected]"
},
"dependencies": {},
"hero": {
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"path": "docs/hero.png"
},
"files": [
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"verification.json",
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