component
RT7257BHZSP
Public Made by Adomby adom
Richtek Tech DC-DC Converters, SOIC-8-EP. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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page.json+11−8@@ -32,31 +32,31 @@ "number": "1", "name": "BOOT", "type": "power_in",- "description": "Bootstrap for high-side gate driver. Connect a 0.1\u03bcF or greater ceramic capacitor from BOOT to SW. V(BOOT)-V(SW) absolute max 6V."+ "description": "Bootstrap for high-side gate driver. Connect a 0.1μF or greater ceramic capacitor from BOOT to SW. V(BOOT)-V(SW) absolute max 6V." }, { "number": "2", "name": "VIN", "type": "power_in",- "description": "Input supply voltage, 4.5V to 18V (abs max 20V). Must be bypassed with a suitable large ceramic capacitor (e.g. 10\u03bcF x2 + 0.1\u03bcF)."+ "description": "Input supply voltage, 4.5V to 18V (abs max 20V). Must be bypassed with a suitable large ceramic capacitor (e.g. 10μF x2 + 0.1μF)." }, { "number": "3", "name": "SW", "type": "power_out",- "description": "Switch node. Connect to an external L-C output filter. Swings between GND and VIN at up to 1.2MHz. High-side RDS(on) 110m\u03a9, low-side 90m\u03a9."+ "description": "Switch node. Connect to an external L-C output filter. Swings between GND and VIN at up to 1.2MHz. High-side RDS(on) 110mΩ, low-side 90mΩ." }, { "number": "4,9", "name": "GND", "type": "power_in",- "description": "Ground. Pin 4 and the exposed pad (pin 9) must both be soldered to a large PCB copper area connected to GND for maximum power dissipation (\u03b8JA 75\u00b0C/W with exposed pad)."+ "description": "Ground. Pin 4 and the exposed pad (pin 9) must both be soldered to a large PCB copper area connected to GND for maximum power dissipation (θJA 75°C/W with exposed pad)." }, { "number": "5", "name": "FB", "type": "input",- "description": "Feedback input. Regulates the output via an external resistive voltage divider. Internal reference VREF = 0.8V (\u00b11.5%)."+ "description": "Feedback input. Regulates the output via an external resistive voltage divider. Internal reference VREF = 0.8V (±1.5%)." }, { "number": "6",@@ -68,13 +68,13 @@ "number": "7", "name": "EN", "type": "input",- "description": "Enable input. Logic high (VIH \u2265 2.7V) enables the converter; logic low (VIL \u2264 0.4V) puts the device into shutdown (<3\u03bcA supply). Tie to VIN via a 100k\u03a9 pull-up for automatic startup. Absolute max 20V."+ "description": "Enable input. Logic high (VIH ≥ 2.7V) enables the converter; logic low (VIL ≤ 0.4V) puts the device into shutdown (<3μA supply). Tie to VIN via a 100kΩ pull-up for automatic startup. Absolute max 20V." }, { "number": "8", "name": "SS", "type": "input",- "description": "Soft-start control input. Connect a capacitor from SS to GND to set the soft-start period; a 0.1\u03bcF cap gives ~13.5ms (ISS = 6\u03bcA typ)."+ "description": "Soft-start control input. Connect a capacitor from SS to GND to set the soft-start period; a 0.1μF cap gives ~13.5ms (ISS = 6μA typ)." } ], "provenance": {@@ -138,5 +138,8 @@ "docs/rt7257bhzsp-datasheet.pdf", "viewers/symbol.html", "viewers/footprint.html"- ]+ ],+ "visibility": {+ "public": true+ } }