component
LT3973EDD#TRPBF
Public Made by Adomby adom
Analog Devices DC-DC Converters, DFN-10-EP(3x3). Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
← Commit history
page.json+280−8@@ -1,13 +1,290 @@ {+ "schema_version": 1,+ "type": "component", "slug": "lt3973edd-trpbf",+ "title": "LT3973EDD#TRPBF",+ "brief": "Analog Devices DC-DC Converters, DFN-10-EP(3x3). Datasheet-verified pinout, KiCad symbol/footprint/3D.", "version": "0.1.0",- "type": "component",- "description": "Analog Devices DC-DC Converters, DFN-10-EP(3x3). Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "license": "CC-BY-SA-4.0", "tags": [ "component", "power management (pmic)", "lt3973edd#trpbf" ],+ "component": {+ "mpn": "LT3973EDD#TRPBF",+ "manufacturer": "Analog Devices",+ "package": "DFN-10-EP(3x3)",+ "pin_count": 11,+ "category": "Power Management (PMIC)",+ "subcategory": "DC-DC Converters",+ "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588914472979746816",+ "parts": {+ "symbol": "lt3973edd-trpbf.kicad_sym",+ "footprint": "lt3973edd-trpbf.kicad_mod",+ "model_3d": "lt3973edd-trpbf.glb",+ "model_3d_step": "lt3973edd-trpbf.step",+ "lbr": "lt3973edd-trpbf.lbr"+ },+ "distributor_links": {},+ "pins": [+ {+ "number": "1",+ "name": "FB",+ "type": "input",+ "description": "Feedback pin for the adjustable LT3973. The internal error amplifier regulates FB to 1.21V; connect the tap of the external resistor divider from VOUT to GND here. FB bias current is typically 0.1nA (20nA max)."+ },+ {+ "number": "2",+ "name": "OUT",+ "type": "power_in",+ "description": "Output-sense pin used by the LT3973 to regulate the VIN-to-VOUT voltage during dropout conditions and to draw current for charging the boost capacitor. Connect to the regulated output; if the programmed output is greater than 14V, tie this pin to GND. Absolute max 14V."+ },+ {+ "number": "3",+ "name": "EN/UVLO",+ "type": "input",+ "description": "Enable / undervoltage-lockout input. The part is in shutdown when this pin is low and active when high; the internal threshold is 1.19V rising with 30mV hysteresis (accurate only when VIN \u2265 4.2V). Tie to VIN if the shutdown feature is unused, or ground to force shutdown. Absolute max 42V."+ },+ {+ "number": "4",+ "name": "VIN",+ "type": "power_in",+ "description": "Main supply input, 4.2V to 42V operating (42V absolute max). VIN supplies the internal circuitry and the internal power switch. Must be locally bypassed with a low-ESR ceramic capacitor."+ },+ {+ "number": "5",+ "name": "GND",+ "type": "power_in",+ "description": "Device ground reference. Must be tied together with the exposed pad (pin 11) on the PCB. Serves as the return for VIN, EN/UVLO, and internal circuitry."+ },+ {+ "number": "6",+ "name": "SW",+ "type": "output",+ "description": "Switch node - output of the internal high-side NPN power switch and drain of the integrated catch Schottky. Connect this pin to the external inductor. Sees VIN plus a diode drop during off-time; internal catch-diode current limit is typically 1.15A."+ },+ {+ "number": "7",+ "name": "BOOST",+ "type": "passive",+ "description": "Bootstrap pin used to generate a drive voltage higher than VIN for the internal NPN power switch. A ceramic boost capacitor (typ. 0.47\u00b5F) is connected from BOOST to SW. Absolute max 55V (25V above SW)."+ },+ {+ "number": "8",+ "name": "BD",+ "type": "power_in",+ "description": "Boost-diode anode. Connect through the boost capacitor charging path - this pin drives the anode of the internal boost Schottky and also supplies current to the LT3973's internal regulator whenever BD is above 3.2V. Absolute max 25V."+ },+ {+ "number": "9",+ "name": "PG",+ "type": "output",+ "description": "Power-good open-drain output from an internal comparator. PG remains low until FB is within 10% of the final regulation voltage; it is valid once VIN > 4.2V and EN/UVLO is high. Sink capability typ. 350\u00b5A at 0.4V; leakage 0.01\u00b5A at 3V. Add an external pull-up resistor."+ },+ {+ "number": "10",+ "name": "RT",+ "type": "passive",+ "description": "Switching-frequency programming pin. Connect an external resistor from RT to GND to program the oscillator between 200kHz and 2.2MHz (e.g. 41.2k \u2192 2.15MHz, 158k \u2192 790kHz, 768k \u2192 195kHz)."+ },+ {+ "number": "11",+ "name": "GND (Exposed Pad)",+ "type": "power_in",+ "description": "Exposed thermal pad on the underside of the DFN package. Electrically GND - must be soldered to the PCB ground plane for proper electrical and thermal performance (\u03b8JA = 40\u00b0C/W for the DD package)."+ }+ ],+ "provenance": {+ "extractor": "ds2sf",+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588914472979746816",+ "pages": 24,+ "sha256": "8b84083bfbac6278",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 11,+ "described": 11,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "metadata": {+ "specs": {+ "Manufacturer": "Analog Devices",+ "Package": "DFN-10-EP(3x3)",+ "Category": "Power Management (PMIC)",+ "Pins": "11"+ }+ },+ "variants": [+ {+ "mpn": "LT3973EDD#PBF",+ "kind": "unknown"+ },+ {+ "mpn": "LT3973EDD#TRPBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFIDD#PBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFIDD#TRPBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFHDD#PBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFHDD#TRPBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFEDD-3.3#PBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFEDD-3.3#TRPBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFIDD-3.3#PBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFIDD-3.3#TRPBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFHDD-3.3#PBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFHDD-3.3#TRPBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFEDD-5#PBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFEDD-5#TRPBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFIDD-5#PBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFIDD-5#TRPBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFHDD-5#PBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFHDD-5#TRPBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFEMSE#PBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFEMSE#TRPBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFIMSE#PBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFIMSE#TRPBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFHMSE#PBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFHMSE#TRPBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFEMSE-3.3#PBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFEMSE-3.3#TRPBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFIMSE-3.3#PBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFIMSE-3.3#TRPBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFHMSE-3.3#PBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFHMSE-3.3#TRPBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFEMSE-5#PBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFEMSE-5#TRPBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFIMSE-5#PBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFIMSE-5#TRPBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFHMSE-5#PBF",+ "kind": "packaging"+ },+ {+ "mpn": "LT3973EDD#TRPBFHMSE-5#TRPBF",+ "kind": "packaging"+ }+ ],+ "sections": [+ "hero",+ "viewers",+ "readme",+ "breadcrumbs",+ "info"+ ],+ "discovery_triggers": [+ "lt3973edd#trpbf"+ ],+ "discovery_pitch": "LT3973EDD#TRPBF (Analog Devices) component page with datasheet-verified CAD.",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }, "dependencies": {}, "hero": { "type": "image",@@ -25,10 +302,5 @@ "docs/lt3973edd-trpbf-datasheet.pdf", "viewers/symbol.html", "viewers/footprint.html"- ],- "visibility": "public",- "author": {- "name": "Ray",- "email": "[email protected]"- }+ ] }