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LP2951ACMMX
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Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, VSSOP-8-0.65mm. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+56@@ -0,0 +1,56 @@+# LP2951ACMMX++**Texas Instruments** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · VSSOP-8-0.65mm++LP2951ACMMX from Texas Instruments, in a VSSOP-8-0.65mm. 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 | OUT | power_out | Regulated output voltage. Delivers up to 100 mA; programmable from 1.24 V to 29 V by external divider (or pin-strapped to 3 V, 3.3 V, or 5 V by tying FEEDBACK to VTAP). Requires an output capacitor for stability. |+| 2 | SENSE | input | Output voltage sense input for the internal reference divider. Normally tied directly to OUT (or to the load Kelvin point) so the regulator senses the actual load voltage. |+| 3 | SHUTDOWN | input | Logic-level shutdown input. Drive high to disable the regulator (output off) or low to enable normal operation. Referenced to GND, tolerates up to 30 V. |+| 4 | GROUND | power_in | Device ground reference. Return for input supply, output capacitor, and internal reference. |+| 5 | ERROR | output | Open-collector active-low error flag. Pulls low when the regulated output falls approximately 5% below its nominal value (dropout, over-current, thermal shutdown, or low VIN); typically used for power-on reset or brown-out indication. Requires an external pull-up resistor. |+| 6 | VTAP | output | Tap of the internal precision resistor divider used to set the fixed 5 V / 3.3 V / 3 V output. Tie to FEEDBACK for the preset factory output; leave open when programming a custom output with an external divider. |+| 7 | FEEDBACK | input | Voltage feedback input to the error amplifier (internal reference ≈ 1.235 V). Tie to VTAP for the preset output, or drive from an external R1/R2 divider from OUT to GND to program VOUT from 1.24 V to 29 V. |+| 8 | IN | power_in | Unregulated input supply. Operates from 2.3 V to 30 V; requires a small input decoupling capacitor (typ. 1 µF). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | VSSOP-8-0.65mm |+| Category | PMIC |+| Pins | 8 |++## Ordering variants++- `LP2951ACMMXDGK`+- `LP2951ACMMXDGKR`+- `LP2951ACMMXMM`+- `LP2951ACMMXMMX`+- `LP2951ACMMXD`+- `LP2951ACMMXM`+- `LP2951ACMMXMX`+- `LP2951ACMMXP`+- `LP2951ACMMXN`+- `LP2951ACMMXNGT`++## CAD (KiCad official)++- Symbol: `LP2951ACMMX`+- Footprint: `Package_SO:VSSOP-8_2.3x2mm_P0.5mm`+- 3D model: VSSOP-8-0.65mm (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](docs/lp2951acmmx-datasheet.pdf) (61 pp, sha256 `4478ca091af597ac`, retrieved 2026-08-17, 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/lp2951acmmx-datasheet.pdf)
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