TLV74312PDBVR from Texas Instruments, in a SOT-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	Input supply pin, 1.4 V to 5.5 V operating (6 V absolute max). A small ceramic capacitor (typically 1 µF) is recommended from this pin to GND.
2	GND	power_in	Ground reference pin for the regulator.
3	EN	input	Enable pin. Drive EN greater than V_EN(HI) to turn on the regulator; drive EN less than V_EN(LO) to put the LDO into shutdown mode. Enable range is 0 V to V_IN (V_EN absolute max = V_IN + 0.3 V).
4	NC	unconnected	No internal connection. May be left floating or tied to ground.
5	OUT	power_out	Regulated output voltage pin (1.2 V fixed for the TLV74312P), rated to 300 mA. For best transient response, use a small 1-µF ceramic capacitor from this pin to GND. Absolute maximum V_OUT is 3.6 V.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

TLV74312PDBVR
TLV74312PDBVRDBVT
TLV74312PDBVRDQNR
TLV74312PDBVRDQNT

CAD (KiCad official)

Symbol: TLV74312PDBVR
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT-23-5 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Texas Instruments datasheet (38 pp, sha256 231363715fb5480e, 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