ap1501-50k5g-13

@@ -0,0 +1,49 @@+# AP1501-50K5G-13++**Diodes Incorporated** · DC-DC Converters · TO-263-5++AP1501-50K5G-13 from Diodes Incorporated, in a TO-263-5. 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 | VIN | power_in | Positive input supply for the IC switching regulator. Operating range up to 40V (absolute max +45V). Requires an input bypass capacitor to minimize voltage transients and supply the switching currents needed by the regulator. |+| 2 | Output | output | Internal switching output (emitter of the on-chip 3A NPN switch). The voltage at this pin switches between (+VIN - VSAT) and approximately -0.5V with a duty cycle of approximately VOUT/VIN. Connects to the external inductor and catch diode of the buck converter; PCB copper area on this node should be kept minimal to reduce EMI coupling. |+| 3 | Gnd | power_in | Circuit ground. The exposed metal tab of the TO263-5L package is also connected to GND and should be soldered to the PCB ground copper for thermal dissipation. |+| 4 | FB | input | Output voltage feedback control. Senses the regulated output voltage to complete the feedback loop. For the fixed 5.0V version this pin is tied directly to the output; internal reference VFB is 1.23V for the adjustable version. Absolute max -0.3V to +40V. |+| 5 | SD | input | ON/OFF shutdown control input. Pulling this pin below ~1.3V (VIL max 0.6V) turns the regulator ON; pulling it above ~1.3V (VIH min 2.0V, up to 40V max) shuts the regulator down, dropping standby current to approximately 150µA. Can be tied to GND or left open if shutdown is not used. |+| TAB | Metal Tab GND | power_in | Exposed metal tab on the TO263-5L package, internally connected to Gnd (pin 3). Serves as the primary thermal path and must be soldered to a copper ground pad on the PCB (recommended >=0.4 in², ideally 2+ in² of 2oz copper) for adequate heat dissipation. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Diodes Incorporated |+| Package | TO-263-5 |+| Category | PMIC |+| Pins | 6 |++## Ordering variants++- `AP1501-50K5G-13`+- `AP1501-50K5G-1312K5G-13`+- `AP1501-50K5G-1333K5G-13`+- `AP1501-50K5G-13T5`+- `AP1501-50K5G-13T5R`++## CAD (KiCad official)++- Symbol: `AP1501-50K5G-13`+- Footprint: `Package_TO_SOT_SMD:TO-263-5_TabPin6`+- 3D model: TO-263-5 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Diodes Incorporated datasheet](https://www.diodes.com/assets/Datasheets/AP1501-50K5G-13.pdf) (None pp, sha256 `bafb5b2d2810633a`, 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/ap1501-50k5g-13-datasheet.pdf)

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