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LP2981-33DBVR
Public Made by Adomby adom
Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+45@@ -0,0 +1,45 @@+# LP2981-33DBVR++**Texas Instruments** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5++LP2981-33DBVR from Texas Instruments, in a SOT-23-5. 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 | VIN | power_in | Supply input. Accepts 2.2 V to 16 V (continuous absolute max 16 V). Should be bypassed with a 1-µF ceramic capacitor (CIN) close to the pin. |+| 2 | GND | power_in | Ground return for the regulator. Ground pin current (IGND) is typically 600 µA at 100-mA load. |+| 3 | ON/OFF | input | Active-low shutdown pin. Drive high (≥1.6 V over temp) to enable the regulator; drive low (≤0.15 V over temp) to place the device in shutdown (~0.01 µA typical). Must be actively terminated; tie to VIN if unused. Absolute max 16 V; operating range 0 V to VIN. |+| 4 | NC | unconnected | No internal connection. Can be left floating or tied to ground. |+| 5 | VOUT | power_out | Regulated 3.3-V output, 100-mA continuous capability (short-circuit protected, ~150 mA). Requires a minimum 4.7-µF output capacitor (COUT) for stability. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOT-23-5 |+| Category | PMIC |+| Pins | 5 |++## Ordering variants++- `LP2981-33DBVRDBVR`+- `LP2981-33DBVRDBVT`++## CAD (KiCad official)++- Symbol: `LP2981-33DBVR`+- Footprint: `Package_TO_SOT_SMD:SOT-23-5`+- 3D model: SOT-23-5 (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/lp2981-33.pdf) (22 pp, sha256 `51443d0a50026bd7`, 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/lp2981-33dbvr-datasheet.pdf)
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