LM2576R-5.0

@@ -0,0 +1,46 @@+# LM2576R-5.0++**HTC Korea TAEJIN Tech LM2576R 5 0** · DC-DC Converters · TO-263-5++LM2576R-5.0 from HTC Korea TAEJIN Tech LM2576R 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 | Positive input supply for the LM2576 step-down switching regulator. Operating range 8V-40V for the 5.0V version; absolute maximum 45V. Requires an input bypass capacitor (Cin) to minimize voltage transients and supply switching currents. |+| 2 | VOUT | output | Emitter of the internal switching transistor. Delivers up to 3.0A switched output; typical switch saturation voltage VSAT ≈ 1.5V. PCB copper area on this node should be minimized to reduce coupling to sensitive circuitry. |+| 3 | GND | power_in | Circuit ground pin. Return for the internal control circuitry and reference. Layout should provide a low-impedance return path (see application PCB layout guidance). |+| 4 | FEEDBACK | input | Senses the regulated output voltage to close the control loop. Internally divided (R2/R1) and applied to the internal error amplifier; nominal regulation to 5.0V ±4% on the fixed 5.0V version. |+| 5 | ON/OFF | input | TTL-level shutdown input. Threshold typically 1.4V: voltage above this (up to +Vin) shuts the regulator off, dropping supply current to ~80µA; below 1.4V or left open, the regulator is on. Allowed range -0.3V ≤ V ≤ +Vin. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | HTC Korea TAEJIN Tech LM2576R 5 0 |+| Package | TO-263-5 |+| Category | PMIC |+| Pins | 5 |++## Ordering variants++- `LM2576R-5.0`+- `LM2576R-5.0LM2576T-5.0`+- `LM2576R-5.0LM2576DP-5.0`++## CAD (KiCad official)++- Symbol: `LM2576R-5.0`+- Footprint: `Package_TO_SOT_SMD:TO-263-2`+- 3D model: TO-263-5 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [HTC Korea TAEJIN Tech LM2576R 5 0 datasheet](docs/lm2576r-5-0-datasheet.pdf) (11 pp, sha256 `2acb3c8a94295de6`, 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/lm2576r-5-0-datasheet.pdf)

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