AP62300TWU-7 — 3 A Synchronous Buck Converter, 4.2 to 18 V (Diodes)

@@ -0,0 +1,95 @@+# AP62300TWU-7: 3 A Synchronous Buck Converter, 4.2 to 18 V (Diodes Inc)++**Diodes Incorporated AP62300T** is a 3 A synchronous step-down converter with integrated+75 mΩ high-side and 45 mΩ low-side MOSFETs. Constant on-time (COT) control means fast+transient response and almost no loop compensation work: an inductor, three capacitors and+a feedback divider make a supply. It drops to PFM at light load for 155 µA quiescent+current, and the gate driver is shaped for low radiated EMI.++| | |+|---|---|+| **MPN** | AP62300TWU-7 (tape and reel, 3000 pcs) |+| **Manufacturer** | Diodes Incorporated |+| **Package** | TSOT26 (Standard) = TSOT-23-6, body 2.90 × 1.60 mm, 2.80 mm lead span, 0.95 mm pitch, 1.00 mm max height |+| **Part marking** | `TP` |+| **KiCad symbol** | `AP62300TWU-7:AP62300TWU-7` |+| **KiCad footprint** | `AP62300TWU-7:SOT95P280X100-6N` (SamacSys) |+| **3D** | `ap62300twu-7.glb` (page viewer) + `ap62300twu-7.step` (manufacturer model) |+| **Fusion / EAGLE** | `AP62300TWU-7.lbr`, canonical hub `ap62300twu-7.adom-lbr.json` |+| **Datasheet** | [DS41958 Rev 4-2](docs/AP62300-datasheet.pdf), [diodes.com](https://www.diodes.com/assets/Datasheets/AP62300_AP62301_AP62300T.pdf) |+| **Order** | DigiKey `31-AP62300TWU-7TR-ND`, Mouser `621-AP62300TWU-7`, LCSC `C1883519` |++> **This is the `T` variant.** `AP62300TWU-7` is the AP62300**T**: feedback reference+> **0.763 V**, not the 0.800 V of `AP62300WU-7`. Same pinout, same footprint, same package,+> but the divider math differs and the two are not drop-in equivalent at a fixed output.+> `AP62301` is the third sibling: 0.800 V reference, PWM only (no PFM), 275 µA IQ.++## Electrical (AP62300T, from DS41958)++| Parameter | Value |+|---|---|+| Input voltage | 4.2 … 18 V (abs max 20 V DC, 22 V for 400 ms) |+| Output voltage | 0.8 … 7 V, set by an external divider |+| Feedback reference V<sub>FB</sub> | **0.763 V** ±1% at 25 °C (0.747 … 0.778 V over temperature) |+| Continuous output current | 3 A |+| Low-side valley current limit | 3.2 / 3.7 / 4.2 A (min / typ / max) |+| Switching frequency | 750 kHz typ (V<sub>IN</sub> 12 V, V<sub>OUT</sub> 5 V, CCM) |+| Minimum on-time / off-time | 90 ns / 220 ns |+| R<sub>DS(ON)</sub> | 75 mΩ high-side, 45 mΩ low-side |+| Quiescent current | 155 µA (PFM, not switching), 1.5 µA in shutdown |+| POR rising / UVLO falling | 3.90 … 4.15 V / 3.6 V typ |+| EN thresholds | 1.20 … 1.25 V high, 1.04 … 1.10 V low; 7 µA typ at V<sub>EN</sub> = 1.5 V |+| Soft-start | 2.5 ms internal |+| Control | Constant on-time (COT), PFM at light load / PWM at load |+| Protection | UVLO, cycle-by-cycle valley current limit, output UVP, thermal shutdown 160 °C (20 °C hysteresis) |+| Thermal resistance | θ<sub>JA</sub> 70 °C/W, θ<sub>JC</sub> 12 °C/W (TSOT26, 2-layer 2 oz board) |+| ESD | ±2 kV HBM, ±500 V CDM |+| Temperature | T<sub>A</sub> –40 … +85 °C, T<sub>J</sub> –40 … +125 °C |++## Pinout++| Pin | Name | Type | Notes |+|---|---|---|---|+| 1 | GND | power in | power ground, and the thermal path for this package |+| 2 | SW | power out | switch node, to the inductor and the BST capacitor |+| 3 | VIN | power in | 4.2 … 18 V, 10 µF ceramic to GND right at the pin |+| 4 | FB | input | divider tap, regulates to 0.763 V |+| 5 | EN | input | high = on, low = off, float = automatic start; 1.2 V precision threshold for programming UVLO |+| 6 | BST | passive | high-side gate drive bootstrap, 100 nF from BST to SW |++## Setting the output voltage++R1 sits between V<sub>OUT</sub> and FB, R2 from FB to GND:++    R1 = R2 × (VOUT / 0.763 − 1)++Diodes' recommended values for this variant, all with R2 = 10 kΩ:++| V<sub>OUT</sub> | R1 (AP62300T) | L | C<sub>IN</sub> | C<sub>OUT</sub> | C<sub>FF</sub> (optional) |+|---|---|---|---|---|---|+| 1.2 V | 5.76 kΩ | 1.5 µH | 10 µF | 2 × 22 µF | open |+| 1.5 V | 9.76 kΩ | 1.5 µH | 10 µF | 2 × 22 µF | open |+| 1.8 V | 13.7 kΩ | 2.2 µH | 10 µF | 2 × 22 µF | 10 … 100 pF |+| 2.5 V | 22.6 kΩ | 2.2 µH | 10 µF | 2 × 22 µF | 10 … 100 pF |+| 3.3 V | 33.2 kΩ | 3.3 µH | 10 µF | 2 × 22 µF | 10 … 100 pF |+| 5.0 V | 56.2 kΩ | 3.3 µH | 10 µF | 2 × 22 µF | 10 … 100 pF |++The R1 column is different for the 0.800 V parts (AP62300/AP62301), so do not copy a+divider from an `AP62300WU-7` design onto this part.++## Files++- `AP62300TWU-7.kicad_sym`: KiCad 9/10 symbol, 5 standard fields, 6 pins+- `SOT95P280X100-6N.kicad_mod`: KiCad 9 footprint, modern `(footprint …)` syntax+- `ap62300twu-7.step`: manufacturer STEP. `ap62300twu-7.glb`: color-preserving GLB+- `AP62300TWU-7.lbr`: EAGLE / Fusion 360 Electronics library (symbol + package + deviceset)+- `ap62300twu-7.adom-lbr.json`: canonical adom-lbr hub (exports to Altium, KiCad, IntLib)+- `docs/AP62300-datasheet.pdf`: Diodes DS41958 Rev 4-2, July 2023+- `docs/symbol.svg`, `docs/footprint.svg`: rendered symbol and footprint previews+- `skills/ap62300twu-7-usage/SKILL.md`: how to design in, lay out and order the part++CAD came from the SamacSys bundle. The symbol was rebuilt in the Adom house style and the+footprint converted to modern KiCad syntax; pad geometry is unchanged from the vendor model+(0.60 × 1.15 mm pads on a 0.95 mm pitch, 2.60 mm span between pad centres), which is+IPC-7351 nominal and runs a longer toe than the 0.70 × 1.00 mm pads in Diodes' own+suggested land pattern.

@@ -0,0 +1,84 @@+{+  "slug": "ap62300twu-7",+  "title": "AP62300TWU-7 — 3 A Synchronous Buck Converter, 4.2 to 18 V (Diodes)",+  "type": "component",+  "version": "1.0.0",+  "visibility": "public",+  "description": "Diodes Incorporated AP62300T — 3 A synchronous buck converter with a 4.2 to 18 V input and 0.8 to 7 V adjustable output. Constant on-time control, 0.763 V feedback reference, integrated 75 mΩ high-side and 45 mΩ low-side MOSFETs, 750 kHz typical switching, PFM at light load for 155 µA quiescent current, EMI-shaped gate driver, UVLO, valley current limit, output UVP and thermal shutdown, 6-pin TSOT-26.",+  "tags": [+    "component",+    "buck-converter",+    "dc-dc",+    "switching-regulator",+    "power",+    "point-of-load",+    "diodes-incorporated",+    "tsot-26",+    "cot",+    "3a"+  ],+  "dependencies": {},+  "discovery_triggers": [+    "AP62300",+    "AP62300T",+    "AP62300TWU-7",+    "3 A buck converter",+    "synchronous buck",+    "step down converter",+    "12 V to 5 V converter",+    "12 V to 3.3 V rail",+    "point of load regulator",+    "DC-DC converter TSOT-26",+    "constant on-time buck",+    "low IQ buck converter",+    "C1883519",+    "buck feedback divider",+    "0.763 V feedback reference"+  ],+  "component": {+    "mpn": "AP62300TWU-7",+    "manufacturer": "Diodes Incorporated",+    "datasheet": "https://www.diodes.com/assets/Datasheets/AP62300_AP62301_AP62300T.pdf",+    "package": "TSOT-26 (TSOT-23-6), 2.90 × 1.60 mm body, 0.95 mm pitch",+    "pin_count": 6,+    "category": "DC-DC switching regulator / buck converter",+    "footprint": "AP62300TWU-7:SOT95P280X100-6N",+    "symbol": "AP62300TWU-7:AP62300TWU-7",+    "model3d": "ap62300twu-7.glb",+    "step": "ap62300twu-7.step",+    "datasheet_path": "docs/AP62300-datasheet.pdf",+    "jlcpcb_part": "C1883519",+    "mouser_part": "621-AP62300TWU-7",+    "digikey_part": "31-AP62300TWU-7TR-ND",+    "library_path": "AP62300TWU-7.lbr",+    "pin_mapping_path": "ap62300twu-7.adom-lbr.json"+  },+  "hero": {+    "type": "billboard",+    "headline": "AP62300TWU-7",+    "subhead": "3 A synchronous buck · 4.2 to 18 V in · TSOT-26",+    "screenshot": "docs/hero.png",+    "path": "docs/hero.png",+    "accent": "#007acc"+  },+  "files": [+    "README.md",+    "package.json",+    "AP62300TWU-7.kicad_sym",+    "SOT95P280X100-6N.kicad_mod",+    "ap62300twu-7.step",+    "ap62300twu-7.glb",+    "ap62300twu-7.adom-lbr.json",+    "AP62300TWU-7.lbr",+    "docs/hero.png",+    "docs/symbol.svg",+    "docs/footprint.svg",+    "docs/AP62300-datasheet.pdf",+    "skills/ap62300twu-7-usage/SKILL.md"+  ],+  "org": "adom",+  "author": {+    "name": "noah",+    "email": "[email protected]"+  }+}\ No newline at end of file