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bd33ka5fp-e2
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ROHM Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2(DPAK). Datasheet-verified pinout, KiCad symbol/footprint/3D.
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README.mdadded+45@@ -0,0 +1,45 @@+# BD33KA5FP-E2++**ROHM** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252-2(DPAK)++BD33KA5FP-E2 from ROHM, in a TO-252-2(DPAK). 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 | Vcc | power_in | Input power supply. Recommended operating range 2.3V to 5.5V (absolute max 7.0V). Attach a decoupling capacitor (≥1μF ceramic) between Vcc and GND close to the pin. |+| 2 | N.C. | unconnected | Not connected on the BDxxKA5FP TO252-3 no-switch variant. Datasheet explicitly notes 'N.C.(2PIN)' for BDxxKA5FP. Leave floating or tie to GND for mechanical support. |+| 3 | Vo | power_out | Regulated 3.3V output, up to 500mA peak. Attach a ≥1μF low-ESR ceramic (X5R/X7R) anti-oscillation capacitor between Vo and GND. Load regulation typ. 25mV (Io=0→500mA); line regulation typ. 10mV. |+| 4 | GND | power_in | Device ground, exposed on the TO252-3 heat-sink tab (FIN). Datasheet explicitly notes 'GND(FIN)' for BDxxKA5FP. Solder to a wide copper ground plane for thermal dissipation (θja=104.2 ℃/W on a 70×70×1.6mm board with 7×7mm² copper). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | ROHM |+| Package | TO-252-2(DPAK) |+| Category | PMIC |+| Pins | 4 |++## Ordering variants++- `BD33KA5FP-E2`+- `BD33KA5FP-E2WFP-E2`+- `BD33KA5FP-E2WF-E2`++## CAD (KiCad official)++- Symbol: `BD33KA5FP-E2`+- Footprint: `Package_TO_SOT_SMD:TO-252-2`+- 3D model: TO-252-2(DPAK) (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [ROHM datasheet](docs/bd33ka5fp-e2-datasheet.pdf) (None pp, sha256 `4a682178340031d0`, 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/bd33ka5fp-e2-datasheet.pdf)
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