component
TPS78319DDCR
Public Unreviewedby Ray
Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TSOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTPS78319DDCR
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.
TPS78319DDCRTPS78319DDCRDDCT
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 (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).