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L7905CD2T-TR
Public Made by Adomby adom
STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-263-2. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+39@@ -0,0 +1,39 @@+# L7905CD2T-TR++**STMicroelectronics** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-263-2++L7905CD2T-TR from STMicroelectronics, in a TO-263-2. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| Tab | IN | power_in | DC input pin, electrically tied to the package's exposed metal tab (used for heatsinking); absolute maximum input voltage is -35 V for this -5 V output version (VO = -5 to -18 V range), with input typically -8 to -20 V during regulation per the L7905C electrical characteristics table. |+| 1 | OUT | power_out | Regulated negative output pin, nominal -5 V (min -4.8 V, max -5.2 V at TJ = 25°C), delivering up to 1.5 A output current with internal thermal-overload, short-circuit (2.1 A typ.), and output-transition SOA protection. |+| 2 | GND | power_in | Ground/common reference pin providing the return path for input and output currents (quiescent current typ. 3 mA flows through this pin). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | TO-263-2 |+| Category | Power Management (PMIC) |+| Pins | 3 |++## CAD (KiCad official)++- Symbol: `L7905CD2T-TR`+- Footprint: `Package_TO_SOT_SMD:TO-263-2`+- 3D model: TO-263-2 (KiCad packages3D, STEP)+- 3D model files: `l7905cd2t-tr-etched.step` / `l7905cd2t-tr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `l7905cd2t-tr.step` / `l7905cd2t-tr.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586177056632164352) (24 pp, sha256 `68ee756997bb737a`, retrieved 2026-09-29, 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/l7905cd2t-tr-datasheet.pdf)
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