component
MT3540
Public Made by Adomby adom
Aerosemi DC-DC Converters, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.md+14@@ -35,6 +35,20 @@ MT3540 from Aerosemi, in a SOT-23-5. Pinout and pin descriptions extracted from - Footprint: `Package_TO_SOT_SMD:SOT-23-5` - 3D model: SOT-23-5 (KiCad packages3D, STEP) +## 3D model downloads++Two STEP files. Same geometry, different body top:++| File | Size | Use it when |+|---|---|---|+| [`mt3540.step`](mt3540.step) | 85 KB | You want the bare part, or you mark your own boards. |+| [`mt3540-etched.step`](mt3540-etched.step) | 1.3 MB | You want the part with `MT3540` already on it. |++The marking in the etched file is real recessed geometry cut into the solid, not a+texture or a decal: 329 faces against 102 in the bare model. It+survives export, section views, and rendering in any CAD tool, and it drops straight+into KiCad or Fusion with no extra setup.+ ## Provenance Data extracted from the manufacturer datasheet, not a distributor listing:
package.json+1−1@@ -1,6 +1,6 @@ { "slug": "mt3540",- "version": "0.1.0",+ "version": "0.2.0", "type": "component", "description": "Aerosemi DC-DC Converters, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.", "tags": [
page.json+9−9@@ -4,7 +4,7 @@ "slug": "mt3540", "title": "MT3540", "brief": "Aerosemi DC-DC Converters, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.",- "version": "0.1.0",+ "version": "0.2.0", "license": "CC-BY-SA-4.0", "tags": [ "component",@@ -34,7 +34,7 @@ "number": "1", "name": "SW", "type": "output",- "description": "Power switch output - drain of the internal 0.5\u03a9, 1.5A N-channel power MOSFET. Connect the boost inductor and Schottky rectifier here. Node swings between GND and up to 28V; absolute max 30V. Keep the SW copper area small to minimize EMI."+ "description": "Power switch output - drain of the internal 0.5Ω, 1.5A N-channel power MOSFET. Connect the boost inductor and Schottky rectifier here. Node swings between GND and up to 28V; absolute max 30V. Keep the SW copper area small to minimize EMI." }, { "number": "2",@@ -46,19 +46,19 @@ "number": "3", "name": "FB", "type": "input",- "description": "Feedback input to the internal error amplifier. Regulates to VREF = 1.20V (MT3540), 1.23V (-F23) or 1.25V (-F25). Set VOUT with a resistor divider: VOUT = VREF \u00d7 (1 + R1/R2). Bias current \u2248 \u221210nA (max \u221250nA). Absolute max \u22120.3V to 6V."+ "description": "Feedback input to the internal error amplifier. Regulates to VREF = 1.20V (MT3540), 1.23V (-F23) or 1.25V (-F25). Set VOUT with a resistor divider: VOUT = VREF × (1 + R1/R2). Bias current ≈ −10nA (max −50nA). Absolute max −0.3V to 6V." }, { "number": "4", "name": "EN", "type": "input",- "description": "Enable / on-off control. VIH \u2265 1.5V turns the converter on; VIL \u2264 0.4V shuts it down (IQ \u2248 0.1\u00b5A). Tie to VIN for automatic startup when unused. Absolute max \u22120.3V to 6V."+ "description": "Enable / on-off control. VIH ≥ 1.5V turns the converter on; VIL ≤ 0.4V shuts it down (IQ ≈ 0.1µA). Tie to VIN for automatic startup when unused. Absolute max −0.3V to 6V." }, { "number": "5", "name": "VIN", "type": "power_in",- "description": "Input supply pin, 2.5V to 5.5V (absolute max 6V). UVLO \u2248 2.2V with 100mV hysteresis. Must be locally bypassed with a low-ESR ceramic capacitor (1\u00b5F or larger, X5R/X7R) close to the pin."+ "description": "Input supply pin, 2.5V to 5.5V (absolute max 6V). UVLO ≈ 2.2V with 100mV hysteresis. Must be locally bypassed with a low-ESR ceramic capacitor (1µF or larger, X5R/X7R) close to the pin." } ], "provenance": {@@ -132,9 +132,9 @@ "docs/hero.png", "docs/mt3540-datasheet.pdf", "viewers/symbol.html",- "viewers/footprint.html"+ "viewers/footprint.html",+ "pads.json" ],- "visibility": {- "public": true- }+ "visibility": "public",+ "description": "Aerosemi DC-DC Converters, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D." }