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LD1117DT50CTR
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STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2(DPAK). Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+67@@ -0,0 +1,67 @@+# LD1117DT50CTR++**STMicroelectronics** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252-2(DPAK)++LD1117DT50CTR from STMicroelectronics, 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 | GND | power_in | Device ground / common return. Reference for both the input and the fixed 5.0 V output. |+| 2 | VOUT | power_out | Regulated 5.0 V output, up to 800 mA. Requires a 10 µF minimum output capacitor for loop stability. Electrically common with the exposed TAB. |+| 3 | VIN | power_in | Unregulated DC input. Absolute maximum 15 V continuous (18 V when IOUT < 20 mA). Typical dropout 1 V at full load; a 100 nF input capacitor is recommended. |+| TAB | VOUT | power_out | Metal heat-sink tab, internally connected to VOUT. Used for thermal dissipation to the PCB copper pour; carries the regulated output potential and must not be tied to ground. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | TO-252-2(DPAK) |+| Category | PMIC |+| Pins | 4 |++## Ordering variants++- `LD1117DT50CTR`+- `LD1117DT50CTRLD1117DT50TR`+- `LD1117DT50CTRLD1117DT12TR`+- `LD1117DT50CTRLD1117DT18TR`+- `LD1117DT50CTRLD1117DT25TR`+- `LD1117DT50CTRLD1117DT33TR`+- `LD1117DT50CTRLD1117DTTR`+- `LD1117DT50CTRLD1117S50TR`+- `LD1117DT50CTRLD1117S33TR`+- `LD1117DT50CTRLD1117S25TR`+- `LD1117DT50CTRLD1117S18TR`+- `LD1117DT50CTRLD1117S12TR`+- `LD1117DT50CTRLD1117STR`+- `LD1117DT50CTRLD1117D50TR`+- `LD1117DT50CTRLD1117D33TR`+- `LD1117DT50CTRLD1117D25TR`+- `LD1117DT50CTRLD1117D18TR`+- `LD1117DT50CTRLD1117D12TR`+- `LD1117DT50CTRLD1117DTR`+- `LD1117DT50CTRLD1117V50`+- `LD1117DT50CTRLD1117V33`+- `LD1117DT50CTRLD1117V25`+- `LD1117DT50CTRLD1117V18`+- `LD1117DT50CTRLD1117V12`+- `LD1117DT50CTRLD1117V`++## CAD (KiCad official)++- Symbol: `LD1117DT50CTR`+- 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:** [STMicroelectronics datasheet](https://www.st.com/resource/en/datasheet/ld1117dt50ctr.pdf) (44 pp, sha256 `1b80923ec6ca9161`, 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/ld1117dt50ctr-datasheet.pdf)
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