component
MP4473GL-Z
Public Made by Adomby adom
Monolithic Power Systems DC-DC Converters, QFN-20(3x4). Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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page.json+9−6@@ -50,25 +50,25 @@ "number": "4", "name": "SS", "type": "bidirectional",- "description": "Soft-start. An external capacitor programs the soft-start ramp. When EN is HIGH, an 8.5\u00b5A internal current source charges the cap and SS ramps 0\u2192VFB; when EN goes LOW, the cap is discharged."+ "description": "Soft-start. An external capacitor programs the soft-start ramp. When EN is HIGH, an 8.5µA internal current source charges the cap and SS ramps 0→VFB; when EN goes LOW, the cap is discharged." }, { "number": "5", "name": "EN", "type": "input",- "description": "Enable input. EN=1 enables the converter. For automatic start-up, tie EN to IN through a 100k\u03a9 resistor. Contains an internal 1M\u03a9 pull-down."+ "description": "Enable input. EN=1 enables the converter. For automatic start-up, tie EN to IN through a 100kΩ resistor. Contains an internal 1MΩ pull-down." }, { "number": "6", "name": "PGOOD", "type": "output",- "description": "Power-good open-drain output. Goes HIGH once VFB \u2265 90% of the nominal reference; there is roughly a 700\u00b5s delay from FB reaching 90% to PGOOD asserting HIGH. Requires an external pull-up resistor."+ "description": "Power-good open-drain output. Goes HIGH once VFB ≥ 90% of the nominal reference; there is roughly a 700µs delay from FB reaching 90% to PGOOD asserting HIGH. Requires an external pull-up resistor." }, { "number": "7", "name": "BST", "type": "passive",- "description": "Bootstrap. Connect a 0.1\u00b5F-1\u00b5F capacitor from BST to SW to form a floating supply for the high-side MOSFET gate driver."+ "description": "Bootstrap. Connect a 0.1µF-1µF capacitor from BST to SW to form a floating supply for the high-side MOSFET gate driver." }, { "number": "8",@@ -146,7 +146,7 @@ "number": "20", "name": "VCC", "type": "power_out",- "description": "Internal 5V LDO bias supply output. Decouple with a 1\u00b5F capacitor placed as close to the pin as possible; do not use to power external loads."+ "description": "Internal 5V LDO bias supply output. Decouple with a 1µF capacitor placed as close to the pin as possible; do not use to power external loads." }, { "number": "21",@@ -246,5 +246,8 @@ "docs/mp4473gl-z-datasheet.pdf", "viewers/symbol.html", "viewers/footprint.html"- ]+ ],+ "visibility": {+ "public": true+ } }