TPS7A2018PDBVR from Texas Instruments, in a SOT-23-5L. 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	Input voltage supply, 1.6 V to 6.0 V. Bypass to GND with a 1 µF ceramic capacitor placed close to the IN and GND pins for best transient response and to minimize input impedance.
2	GND	power_in	Common ground reference for the device. All voltages are measured with respect to this pin.
3	EN	input	Enable input, 0 V to 6.0 V. A low voltage (< VEN(LOW)) turns the regulator off and discharges OUT to GND; a high voltage (> VEN(HI)) enables the regulator. An internal 500 kΩ pulldown holds the regulator off by default and is disconnected once VEN > VEN(HI) to reduce input current.
4	NC	unconnected	No internal electrical connection. May be left floating or tied to a plane; making no connection is preferred.
5	OUT	power_out	Regulated output voltage (1.8 V for TPS7A2018). Requires a low-ESR ceramic capacitor (1 µF nominal, 0.47 µF to 200 µF effective, ESR ≤ 100 mΩ) to GND placed close to the OUT and GND pins for stability. An internal 150 Ω (typical) pulldown discharges VOUT in shutdown (VEN < VEN(LOW)).

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOT-23-5L
Category	PMIC
Pins	5

Ordering variants

Same part, different packaging or reel option.

TPS7A2018PDBVR
TPS7A2018PDBVRDBVT
TPS7A2018PDBVRDQN
TPS7A2018PDBVRYCJ
TPS7A2018PDBVRYCK

CAD (KiCad official)

Symbol: TPS7A2018PDBVR
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT-23-5L (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`tps7a2018pdbvr.step`	85 KB	You want the bare part, or you mark your own boards.
`tps7a2018pdbvr-etched.step`	2.5 MB	You want the part with `TPS7A2018PDBVR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 607 faces against 102 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: Texas Instruments datasheet (57 pp, sha256 0c6942715f398ba4, 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