component

LT3045EMSE#TRPBF

Public Made by Adom

by 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.

componentpower management (pmic)lt3045emse-trpbfboard-derived

Verified LT3045EMSE#TRPBF

by Claude, at Caleb Taylor's request · last 27 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 2 records

27 Oct 2026Claude, at Caleb Taylor's requestValidated against Analog Devices' LT3045 datasheet (Rev. D, 11/22)files match
SymbolFootprint3D modelPinsfor all variants
  • ✓Datasheet replaced: the page carried a JLCPCB copy (tier lcsc, Rev. B); now ADI's Rev. D (11/22, 32 pages) from analog.com/media/en/technical-documentation/data-sheets/lt3045.pdf, fetched 2026-10-27
  • ✓Orderable LT3045EMSE#TRPBF is the tape-and-reel 12-lead plastic MSOP (MSE), marking 3045, -40 to 125 °C (Order Information, p.2)
  • ✓All 13 pins match the MSE pin configuration (p.2) and Pin Functions (p.12-13) by number and name: IN 1/2/3, EN/UV 4, PG 5, ILIM 6, PGFB 7, SET 8, GND 9, OUTS 10, OUT 11/12, exposed pad 13 = GND ('EXPOSED PAD (PIN 13) IS GND, MUST BE SOLDERED TO PCB'); no renames needed
  • ✓Pin types: IN power_in, EN/UV and PGFB input, PG open_collector (open-collector flag), OUTS input (error amplifier input), OUT power_out, GND power_in; ILIM (programming pin that sources a current) and SET (error amplifier input that sources 100µA) kept passive
  • •Shared pins: pins 2/3 (IN), 12 (OUT) and 13 (GND, exposed pad) are hidden pins stacked at the same coordinates as visible pins 1, 11 and 9, and are typed passive. This is KiCad's stacked-pin convention: a hidden power_in pin would join an implicit global net named after the pin, and stacked power_out pins would conflict in ERC. The visible pin of each stack has the datasheet's type, so each net has one power_in, power_out or power_in pin
  • ✓All 13 descriptions rewritten from Pin Functions (p.12-13). The old text was copied across stacked pins: pins 2 and 3 said 'shared with pins 2 and 3' and pin 12 said 'shared with pin 12'; now every IN pin says 'pins 1, 2, 3' and every OUT pin 'pins 11, 12'. Dropped values that are not in the pin functions (1.8V to 20V range, ±22V, 1.18V, 500mA)
  • ✓Footprint vs MSE package 05-08-1666 Rev G (p.30): 12 pads at e = 0.65 mm, pin 1 top-left, 1-6 down the left, 7-12 up the right, as the p.2 top view; pads 1.45 x 0.40 at x = ±2.15 against ADI's recommended 0.889 ±0.127 x 0.42 ±0.038 (inner edges 3.20-3.45 apart, outer span 5.10 min); the KiCad pads are longer (inner edges 2.85 apart, outer span 5.75) and 0.40 wide (within 0.382-0.458), and cover the leads: tips at 4.90 ±0.152 span, foot 0.53 ±0.152, lead width 0.22-0.38
  • ✓Exposed pad 13: 1.651 x 2.845 mm at the centre, long side along the lead rows, equal to the drawing's 1.651 ±0.102 x 2.845 ±0.102 and ADI's recommended pad; copper and mask, with four 0.67 x 1.15 paste windows
  • ✓3D body 4.90 x 4.039 x 0.95 mm against lead span 4.90 ±0.152, body 4.039 ±0.102 (and 3.00 ±0.102 across), height 1.10 max (p.30); seated on z = 0, centred on the pads, pin-1 dot at the top-left corner (matching GLB)
  • ✓DigiKey 505-LT3045EMSE#TRPBFTR-ND (tape and reel; DigiKey product URL names LT3045EMSE-TRPBF) and Mouser 584-LT3045EMSE#TRPBF kept and added to specs
  • ✓Symbol and footprint Datasheet properties point at the manufacturer datasheet URL
  • ✓Symbol Datasheet / MPN / Manufacturer / DigiKey / Mouser / LCSC properties agree with page.json; footprint Datasheet property points at the manufacturer datasheet URL
  • ✓component-page-verify: all checks pass
Evidencedatasheet (Analog Devices)
Verified files✓ lt3045emse-trpbf.kicad_sym✓ lt3045emse-trpbf.kicad_mod✓ lt3045emse-trpbf.step
16 Oct 2026Claude (AI build)Automated build checks (awaiting human validation)superseded
SymbolFootprint3D modelPinsfor all variants
  • ✓Footprint extracted pad-for-pad from the source board and normalized to the footprint frame (back-side parts un-mirrored)
  • ✓3D model seated z=0 at footprint origin (placement inverse; method centroid-matched to KiCad library models on 59 cases)
  • ✓adom-lbr generate + lint passed
  • ✓13 of 13 pins described from the datasheet (adom-ds2sf, page-cited)
  • •Not yet checked by a person: land pattern vs datasheet, pin-1/orientation, 3D body vs drawing
Evidencedatasheet
Verified files! lt3045emse-trpbf.kicad_sym! lt3045emse-trpbf.kicad_mod✓ lt3045emse-trpbf.step
Spot something wrong? Report it as an issue Propose a fix Records are signed by members of adom.
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← Commit history

Add component CAD, datasheet and docs (2)

Caleb ·eb02b1afea ·12d ago ·parent df770ac
2 files changed +208
docs/lt3045emse-trpbf-datasheet.pdfpackage.json+208
docs/lt3045emse-trpbf-datasheet.pdfadded
⋯ 1 unchanged line ⋯
package.jsonadded+208
@@ -0,0 +1,208 @@+{+  "slug": "lt3045emse-trpbf",+  "version": "0.1.0",+  "type": "component",+  "tags": [+    "component",+    "power management (pmic)",+    "lt3045emse-trpbf",+    "board-derived",+    "staged-for-validation"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "verification.json",+    "lt3045emse-trpbf.kicad_sym",+    "lt3045emse-trpbf.kicad_mod",+    "lt3045emse-trpbf-etched.glb",+    "lt3045emse-trpbf-etched.step",+    "lt3045emse-trpbf.glb",+    "lt3045emse-trpbf.step",+    "lt3045emse-trpbf.lbr",+    "docs/hero.png",+    "docs/lt3045emse-trpbf-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html"+  ],+  "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://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588886313106362368",+    "parts": {+      "symbol": "lt3045emse-trpbf.kicad_sym",+      "footprint": "lt3045emse-trpbf.kicad_mod",+      "model_3d": "lt3045emse-trpbf-etched.glb",+      "model_3d_plain": "lt3045emse-trpbf.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 supply (shared with pins 2 and 3). Operating range 1.8V to 20V (abs max ±22V). Requires a bypass capacitor (≥4.7µF typ) close to the pin; include higher capacitance for large load transients. [datasheet p.12]"+      },+      {+        "number": "2",+        "name": "IN",+        "type": "passive",+        "description": "Input supply (shared with pins 2 and 3). Operating range 1.8V to 20V (abs max ±22V). Requires a bypass capacitor (≥4.7µF typ) close to the pin; include higher capacitance for large load transients. [datasheet p.12]"+      },+      {+        "number": "3",+        "name": "IN",+        "type": "passive",+        "description": "Input supply (shared with pins 2 and 3). Operating range 1.8V to 20V (abs max ±22V). Requires a bypass capacitor (≥4.7µF typ) close to the pin; include higher capacitance for large load transients. [datasheet p.12]"+      },+      {+        "number": "4",+        "name": "EN/UV",+        "type": "input",+        "description": "Enable / Undervoltage Lockout input. Pulling low (<1.18V typ) places the part in shutdown (IQ drops to <1µA). Rising trip point 1.24V typ with 130mV hysteresis. Can be driven by a resistor divider from IN to set a programmable input UVLO threshold. Absolute max ±22V. Tie to IN if unused — do not float. [datasheet p.12]"+      },+      {+        "number": "5",+        "name": "PG",+        "type": "open_collector",+        "description": "Power Good open-collector flag. Pulls low when PGFB is below 300mV (output out of regulation). Absolute max −0.3V to 22V. Float if unused. A parasitic substrate diode exists between PG and GND; do not pull below −0.3V. [datasheet p.12]"+      },+      {+        "number": "6",+        "name": "ILIM",+        "type": "passive",+        "description": "Current Limit Programming pin. Connect a resistor from ILIM to GND to program the current limit; programming scale factor ≈150mA·kΩ (e.g. 300Ω → 500mA limit). ILIM mirrors output current (1:500), so can be monitored as a 0V–300mV current-sense output. Tie to GND if programmable limit is not needed. Absolute max −0.3V to 1V. [datasheet p.12]"+      },+      {+        "number": "7",+        "name": "PGFB",+        "type": "input",+        "description": "Power Good Feedback input. PG asserts (pulls high / releases) when PGFB rises above 300mV typ (7mV hysteresis). Set the trip voltage with a divider between OUT, PGFB and GND: VOUT,trip = 0.3V·(1 + RPG2/RPG1). Also enables the fast start-up circuitry. Tie to IN if unused. Absolute max −0.3V to 22V. [datasheet p.12]"+      },+      {+        "number": "8",+        "name": "SET",+        "type": "passive",+        "description": "Error-amplifier inverting input and output-voltage set point. SET sources a precision 100µA (±1% initial) reference current; VOUT = 100µA · RSET sets the output from 0V to 15V. A capacitor from SET to GND improves noise, PSRR and transient response at the cost of start-up time. Kelvin-connect the SET resistor's ground to the load. Absolute max −0.3V to 16V, ±20mA. [datasheet p.12]"+      },+      {+        "number": "9",+        "name": "GND",+        "type": "power_in",+        "description": "Ground return. Tie to the exposed pad (pin 13) and to the ground sides of CSET and COUT. [datasheet p.12]"+      },+      {+        "number": "10",+        "name": "OUTS",+        "type": "input",+        "description": "Output Sense — non-inverting input of the error amplifier. Kelvin-connect OUTS directly to the output capacitor and the load for best transient performance and load regulation. OUT-to-OUTS differential ±1.2V max. Absolute max −0.3V to 16V, ±20mA. [datasheet p.13]"+      },+      {+        "number": "11",+        "name": "OUT",+        "type": "power_out",+        "description": "Regulated output (shared with pin 12). Supplies the load; requires a minimum 10µF ceramic output capacitor with ESR <20mΩ and ESL <2nH for stability. Delivers up to 500mA; adjustable 0V to 15V. Absolute max −0.3V to 16V. [datasheet p.13]"+      },+      {+        "number": "12",+        "name": "OUT",+        "type": "passive",+        "description": "Regulated output (shared with pin 12). Supplies the load; requires a minimum 10µF ceramic output capacitor with ESR <20mΩ and ESL <2nH for stability. Delivers up to 500mA; adjustable 0V to 15V. Absolute max −0.3V to 16V. [datasheet p.13]"+      },+      {+        "number": "13",+        "name": "GND",+        "type": "passive",+        "description": "Ground return. Tie to the exposed pad (pin 13) and to the ground sides of CSET and COUT. [datasheet p.12]"+      }+    ],+    "provenance": {+      "factory_chain": {+        "pipeline": "adom-parts (board-derived) 0.1",+        "pins": "KiCad symbol from the source board + adom-ds2sf datasheet extraction (claude-opus-4-7)",+        "at": "2026-10-16"+      },+      "datasheet": {+        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588886313106362368",+        "pages": 32,+        "sha256": "79a19c48f10093ebc869285b2d3ccd52766d63f4d2861f138b58e728080d2caf",+        "source_tier": "lcsc"+      },+      "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+      }+    },+    "viewers": {+      "symbol": "viewers/symbol.html",+      "footprint": "viewers/footprint.html"+    },+    "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,+          4.039,+          0.95+        ],+        "zmin_mm": -0.0,+        "footprint_binding": "identity",+        "sha256": "aa91d924a017af1cf431a9ac1a666764cb189eca8b73b8867170c8507343c645",+        "checked": "2026-10-16",+        "checked_by": "adom-parts/partstep.py (placement inverse from the source board; centroid-matched to KiCad library models on 59 reference cases)"+      },+      {+        "file": "lt3045emse-trpbf-etched.step",+        "role": "eda",+        "up": "Z",+        "units": "mm",+        "origin": "footprint origin",+        "seat": "z = 0 (PCB top surface)",+        "extents_mm": [+          4.9,+          4.039,+          0.952+        ],+        "zmin_mm": -0.0,+        "footprint_binding": "identity",+        "sha256": "ffe31a3b0784f35925731cae4398558ee81a504257f78d3559c9b08991de0358",+        "checked": "2026-10-16",+        "checked_by": "adom-parts/partstep.py (placement inverse from the source board; centroid-matched to KiCad library models on 59 reference cases)"+      }+    ]+  },+  "description": "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."+}\ No newline at end of file