LMR33630ADDAR

@@ -0,0 +1,60 @@+# LMR33630ADDAR++**Texas Instruments** · DC-DC Converters · ESOP-8++LMR33630ADDAR from Texas Instruments, in a ESOP-8. 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 | PGND | power_in | Power ground terminal. Connect to system ground and AGND. Connect to bypass capacitor with short, wide traces to minimize input-loop inductance. |+| 2 | VIN | power_in | Input supply to the regulator, 3.8 V to 36 V (38 V abs max). Connect a high-quality bypass capacitor directly between this pin and PGND with short, wide traces. |+| 3 | EN | input | Enable input to the regulator. High = ON, low = OFF; precision-threshold input. Can be tied directly to VIN. Must not exceed VIN by more than 0.3 V. Do not float. |+| 4 | PG | output | Open-drain power-good flag output (22 V abs max, 18 V recommended). Connect to a suitable voltage supply through a current-limiting resistor. High = power OK, low = power bad. Flag pulls low when EN = low. May be left open when not used. |+| 5 | FB | input | Feedback input to the regulator. Connect to the tap point of the external feedback voltage divider that sets VOUT (1 V to 24 V). Internal reference is approximately 1 V. Do not float, do not ground. |+| 6 | VCC | power_out | Internal 5-V LDO output used as supply for internal control circuits. Do not connect to external loads. Can be used as logic supply for the power-good pull-up. Connect a high-quality 1-µF ceramic capacitor from this pin to GND. |+| 7 | BOOT | power_in | Boot-strap supply voltage for the internal high-side gate driver. Connect a high-quality 100-nF ceramic capacitor between this pin and the SW pin (BOOT-to-SW abs max 5.5 V). |+| 8 | SW | power_out | Regulator switch node. Connect to the power inductor. Also returns the bootstrap capacitor current. High-dV/dt node - keep the trace short and away from sensitive nodes. |+| 9 | AGND | power_in | Analog ground / thermal pad on the bottom of the HSOIC package. Ground reference for internal references and logic; all electrical parameters are measured with respect to this pin. Serves as both AGND connection and the primary thermal path - must be soldered to a ground plane for proper electrical and thermal performance. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | ESOP-8 |+| Category | PMIC |+| Pins | 9 |++## Ordering variants++- `LMR33630ADDARADDA`+- `LMR33630ADDARADDAR`+- `LMR33630ADDARBDDA`+- `LMR33630ADDARBDDAR`+- `LMR33630ADDARCDDA`+- `LMR33630ADDARCDDAR`+- `LMR33630ADDARARNX`+- `LMR33630ADDARARNXR`+- `LMR33630ADDARBRNX`+- `LMR33630ADDARBRNXR`+- `LMR33630ADDARCRNX`+- `LMR33630ADDARCRNXR`++## CAD (KiCad official)++- Symbol: `LMR33630ADDAR`+- Footprint: `Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm`+- 3D model: ESOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/lmr33630addar.pdf) (53 pp, sha256 `63404cdc9372a289`, retrieved 2026-08-17, tier: manufacturer)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **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/lmr33630addar-datasheet.pdf)

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