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l7905cv-dg
Public Unreviewedby Ray
STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-220. Datasheet-verified pinout, KiCad symbol/footprint/3D.
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README
markdownL7905CV-DG
STMicroelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-220
L7905CV-DG from STMicroelectronics, in a TO-220. 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 | Common ground / reference return. In a negative regulator this is the 0 V node; V_IN is applied as a negative voltage relative to this pin and V_OUT is the regulated -5 V relative to this pin. |
| 2 | IN | power_in | Negative unregulated input supply. Absolute maximum V_I = -35 V. For -5 V output the recommended input range is -8 V to -20 V (per Table 5). Requires C_I = 2.2 µF solid tantalum (or ~22 µF aluminum electrolytic) to GND for stability. Internally tied to the metal tab / heatsink. |
| 3 | OUT | power_out | Regulated negative output, -5 V nominal (-4.75 V to -5.25 V over line/load, C-grade). Delivers up to 1.5 A with adequate heatsinking; internally current-limited (I_sc typ 2.1 A) and thermally protected. Requires C_O = 1 µF (min) for transient response. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | TO-220 |
| Category | PMIC |
| Pins | 3 |
Ordering variants
L7905CV-DGL7905CV-DGL7905ACV-DGL7905CV-DGL7905ACVL7905CV-DGL7905CPL7905CV-DGL7905CD2T-TRL7905CV-DGL7905ACD2T-TR
CAD (KiCad official)
- Symbol:
L7905CV-DG - Footprint:
Package_TO_SOT_THT:TO-220-3_Vertical - 3D model: TO-220 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (None pp, sha256
4de0db9c6728c9fb, 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).