LP2951-33DR

@@ -0,0 +1,50 @@+# LP2951-33DR++**Texas Instruments** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOIC-8++LP2951-33DR from Texas Instruments, in a SOIC-8. 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 | OUTPUT | power_out | Regulated voltage output (3.3 V nominal for -33 version, 100 mA rated). Tie to SENSE for local regulation. |+| 2 | SENSE | input | Remote-sense input. Connect to OUTPUT (with FEEDBACK tied to VTAP) to output the fixed voltage corresponding to the part version, or route to the load for remote sensing. |+| 3 | SHUTDOWN | input | Active-high shutdown input. Drives the regulator into low-current shutdown when asserted. Absolute max range -1.5 to 30 V. |+| 4 | GND | power_in | Device ground reference. |+| 5 | ERROR | output | Active-low open-collector error flag. Pulls low when VOUT drops more than 6% below its nominal value. Requires an external pull-up. |+| 6 | VTAP | output | Internal resistor-divider tap. Tie to FEEDBACK to program the fixed output voltage of the part version (3.3 V for -33). |+| 7 | FEEDBACK | input | Regulator feedback input (1.235 V reference internal). Tie to VTAP (with OUTPUT tied to SENSE) for the fixed output voltage, or drive from an external resistor divider to set an adjustable output between 1.235 V and 30 V. |+| 8 | INPUT | power_in | Unregulated supply input. Operating range up to 30 V; absolute max -0.3 to 30 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-8 |+| Category | PMIC |+| Pins | 8 |++## Ordering variants++- `LP2951-33DRD`+- `LP2951-33DRDR`+- `LP2951-33DRP`+- `LP2951-33DRDRG`++## CAD (KiCad official)++- Symbol: `LP2951-33DR`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (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/lp2951-33.pdf) (35 pp, sha256 `5fc61cb191c95614`, 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/lp2951-33dr-datasheet.pdf)

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