RT9742GGJ5

@@ -0,0 +1,52 @@+# RT9742GGJ5++**Richtek Tech** · AC-DC Controllers and Regulators · TSOT-23-5++RT9742GGJ5 from Richtek Tech, in a TSOT-23-5. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | VOUT | power_out | Switched power output. Delivers up to ~1A (typ. current-limit 1.4A for the G-current option) from VIN through the internal N-MOSFET high-side switch. Requires a 0.1uF ceramic COUT for stability; internal auto-discharge pulls VOUT to GND when the switch is disabled. |+| 2 | GND | power_in | Device ground reference for the bias, control logic and the source-referred protection circuitry. |+| 3 | FLG | output | Active-low, open-drain fault flag. Pulled low after an over-current or over-temperature condition persists for approximately 10ms (deglitched). Requires an external pull-up resistor (typ. to VIN or a logic rail). |+| 4 | EN | input | Chip-enable input. For the RT9742G option this pin is ACTIVE HIGH: drive high (up to 6V) to turn the power switch on, drive low to turn it off. Absolute-max range -0.3V to 7V; no internal pull, so must be driven or externally biased. |+| 5 | VIN | power_in | Power input, 2.7V to 6V recommended (7V abs-max). Source for the switched output and internal bias. Bypass with a 10uF ceramic CIN close to the pin. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Richtek Tech |+| Package | TSOT-23-5 |+| Category | PMIC |+| Pins | 5 |++## Ordering variants++- `RT9742GGJ5GGJ5`+- `RT9742GGJ5GGJ5F`+- `RT9742GGJ5MGJ5`+- `RT9742GGJ5MNGJ5`+- `RT9742GGJ5UNGJ5`+- `RT9742GGJ5JNGV`+- `RT9742GGJ5KNGV`+- `RT9742GGJ5LNGV`+- `RT9742GGJ5SNGV`++## CAD (KiCad official)++- Symbol: `RT9742GGJ5`+- Footprint: `Package_TO_SOT_SMD:SOT-23-5`+- 3D model: TSOT-23-5 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Richtek Tech datasheet](docs/rt9742ggj5-datasheet.pdf) (19 pp, sha256 `ed44fd2fbcb11dc2`, retrieved 2026-08-17, tier: manufacturer)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/rt9742ggj5-datasheet.pdf)

@@ -0,0 +1,34 @@+{+  "slug": "rt9742ggj5",+  "version": "0.1.0",+  "type": "component",+  "description": "Richtek Tech AC-DC Controllers and Regulators, TSOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+  "tags": [+    "component",+    "pmic",+    "rt9742ggj5"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "rt9742ggj5.kicad_sym",+    "rt9742ggj5.kicad_mod",+    "rt9742ggj5.glb",+    "rt9742ggj5.step",+    "rt9742ggj5.lbr",+    "docs/hero.png",+    "docs/rt9742ggj5-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html"+  ],+  "visibility": "public",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  }+}\ No newline at end of file