← Commit history

Publish 0.2.0

Ray ·da0e2c9944 · ·parent 56a1a64
3 files changed +23−9
README.md+14
@@ -30,6 +30,20 @@ MD8942 from Shanghai Mingda Microelectronics, in a SOT-23-6L. Pinout and pin des - Footprint: `Package_TO_SOT_SMD:SOT-23-6` - 3D model: SOT-23-6L (KiCad packages3D, STEP) +## 3D model downloads++Two STEP files. Same geometry, different body top:++| File | Size | Use it when |+|---|---|---|+| [`md8942.step`](md8942.step) | 97 KB | You want the bare part, or you mark your own boards. |+| [`md8942-etched.step`](md8942-etched.step) | 1.5 MB | You want the part with `MD8942` already on it. |++The marking in the etched file is real recessed geometry cut into the solid, not a+texture or a decal: 360 faces against 117 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": "md8942",-  "version": "0.1.0",+  "version": "0.2.0",   "type": "component",   "description": "Shanghai Mingda Microelectronics DC-DC Converters, SOT-23-6L. Datasheet-verified pinout, KiCad symbol/footprint/3D.",   "tags": [
page.json+8−8
@@ -4,7 +4,7 @@   "slug": "md8942",   "title": "MD8942",   "brief": "Shanghai Mingda Microelectronics DC-DC Converters, SOT-23-6L. Datasheet-verified pinout, KiCad symbol/footprint/3D.",-  "version": "0.1.0",+  "version": "0.2.0",   "license": "CC-BY-SA-4.0",   "tags": [     "component",@@ -46,19 +46,19 @@         "number": "3",         "name": "FB",         "type": "input",-        "description": "Feedback input to the internal error amplifier. Set the output voltage via a resistor divider from VOUT to FB using VOUT = VFB \u00d7 (1 + R2/R1), where VFB is typically 0.794V. Absolute max -0.3V to 6V."+        "description": "Feedback input to the internal error amplifier. Set the output voltage via a resistor divider from VOUT to FB using VOUT = VFB × (1 + R2/R1), where VFB is typically 0.794V. Absolute max -0.3V to 6V."       },       {         "number": "4",         "name": "EN",         "type": "input",-        "description": "Enable input, active-high logic. Pulling EN above the ~1V rising threshold enables the chip; pulling below the falling threshold (~0.84V, 160mV hysteresis) shuts it down. Floating EN disables the chip (internal 430k\u03a9 pull-down to GND). Internal zener clamps EN to ~5V, absolute max 6V, sink current limit 100\u00b5A."+        "description": "Enable input, active-high logic. Pulling EN above the ~1V rising threshold enables the chip; pulling below the falling threshold (~0.84V, 160mV hysteresis) shuts it down. Floating EN disables the chip (internal 430kΩ pull-down to GND). Internal zener clamps EN to ~5V, absolute max 6V, sink current limit 100µA."       },       {         "number": "5",         "name": "VIN",         "type": "power_in",-        "description": "Input supply pin. Operating range 4V to 36V, standoff input voltage 42V. Bypass with a low-ESR ceramic input capacitor (typ. 10\u00b5F) placed as close as possible to VIN and GND."+        "description": "Input supply pin. Operating range 4V to 36V, standoff input voltage 42V. Bypass with a low-ESR ceramic input capacitor (typ. 10µF) placed as close as possible to VIN and GND."       },       {         "number": "6",@@ -138,9 +138,9 @@     "docs/hero.png",     "docs/md8942-datasheet.pdf",     "viewers/symbol.html",-    "viewers/footprint.html"+    "viewers/footprint.html",+    "pads.json"   ],-  "visibility": {-    "public": true-  }+  "visibility": "public",+  "description": "Shanghai Mingda Microelectronics DC-DC Converters, SOT-23-6L. Datasheet-verified pinout, KiCad symbol/footprint/3D." }\ No newline at end of file