XH2576-5.0

@@ -0,0 +1,40 @@+# XH2576-5.0++**XINLUDA XH2576 5 0** · DC-DC Converters · TO-263-5++XH2576-5.0 from XINLUDA XH2576 5 0, 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 | Unregulated DC input supply. Operating range 7 V to 40 V (60 V for HV version); absolute maximum 45 V. Requires a local bypass capacitor (typ. 100 uF aluminum electrolytic) close to the pin for stable operation. |+| 2 | OUTPUT | output | Internal 3 A NPN power switch emitter output. Connects to the external inductor and to the catch (Schottky) diode cathode; this is the switching node of the buck converter. |+| 3 | GND | power_in | Device ground and thermal reference. On the TO-263 (DDPAK) package this pin is tied to the exposed tab; PCB copper area around this pad sets thermal resistance (theta_JA = 32-73 C/W depending on copper). |+| 4 | FEEDBACK | input | Regulation feedback input to the internal error amplifier. On the fixed 5.0 V version this pin is internally divided (R2 = 3.1 k, R1 = 1.0 k) and is connected directly to the regulated output node. On the ADJ version an external divider sets VOUT (Vref = 1.230 V). |+| 5 | ON/OFF | input | TTL-compatible active-low shutdown control (bar over ON/OFF). Logic LOW (or tied to GND) enables the regulator; logic HIGH forces low-power standby (~50 uA typ). Input voltage range: -0.3 V to +VIN. Do not float. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | XINLUDA XH2576 5 0 |+| Package | TO-263-5 |+| Category | PMIC |+| Pins | 5 |++## CAD (KiCad official)++- Symbol: `XH2576-5.0`+- 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:** [XINLUDA XH2576 5 0 datasheet](docs/xh2576-5-0-datasheet.pdf) (14 pp, sha256 `e75d17fa64d7c551`, retrieved 2026-08-17, tier: lcsc)+- **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/xh2576-5-0-datasheet.pdf)

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