TPS78319DDCR

@@ -0,0 +1,47 @@+# TPS78319DDCR++**Texas Instruments** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TSOT-23-5++TPS78319DDCR from Texas Instruments, in a TSOT-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 | IN | power_in | Unregulated input supply, 2.2 V to 5.5 V (absolute max 6.0 V). Bypass with a small 0.1-µF capacitor to ground; typical input capacitor is 1.0 µF ceramic. Tie input and output capacitor grounds back to the IC ground with minimal impedance between them. |+| 2 | GND | power_in | Device ground. Both GND pins (2 and 4) must be tied to the system ground for proper operation. |+| 3 | EN | input | CMOS-compatible enable input. Drive above 1.2 V (VIH) to turn the regulator on; drive below 0.4 V (VIL) to place the device in shutdown (operating current drops to ~18 nA typ). Absolute max range −0.3 V to VIN + 0.3 V. |+| 4 | GND | power_in | Device ground. Both GND pins (2 and 4) must be tied to the system ground for proper operation. |+| 5 | OUT | power_out | Regulated 1.9-V output (150 mA max). Requires a 1.0-µF or larger ceramic output capacitor from this pin to ground for stable operation. No internal pulldown at the output, allowing the output capacitor to act as a temporary backup source (e.g. during battery swap). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TSOT-23-5 |+| Category | Power Management (PMIC) |+| Pins | 5 |++## Ordering variants++Same part, different packaging or reel option.++- `TPS78319DDCR`+- `TPS78319DDCRDDCT`++## CAD (KiCad official)++- Symbol: `TPS78319DDCR`+- Footprint: `Package_TO_SOT_SMD:TSOT-23-5`+- 3D model: TSOT-23-5 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/tps783) (None pp, sha256 `4a846a6e48199d33`, 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/tps78319ddcr-datasheet.pdf)

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