AP7343D-18W5-7 from Diodes Incorporated, in a SOT-25. 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	VIN	power_in	Power input pin. Operating input voltage range 1.7V to 5.25V; absolute maximum 6.0V. Bypass to GND with a 1µF ceramic capacitor placed close to the pin.
2	GND	power_in	Device ground. Common return for VIN, VOUT and EN.
3	EN	input	Active-high enable input. Drive high (≥1.3V, max 5.25V) to enable the regulator; drive low (≤0.5V) to enter shutdown (ISTANDBY ≈ 0.01µA typ). Must not be left floating. VEN absolute maximum 6.0V; input leakage ±1µA.
4	NC	unconnected	No internal connection. May be left floating or tied to any potential; commonly tied to GND for mechanical stability.
5	VOUT	power_out	Regulated power output pin, fixed at 1.8V for this option code (VOUT accuracy ±1%). Rated for 300mA continuous. Requires a 1µF ceramic output capacitor to GND for stability. Internal auto-discharge N-channel MOSFET (~30Ω) pulls this pin to GND when the device is disabled (EN low).

Key specifications

Parameter	Value
Manufacturer	Diodes Incorporated
Package	SOT-25
Category	PMIC
Pins	5

Ordering variants

AP7343D-18W5-7
AP7343D-18W5-718FS4-7
AP7343D-18W5-718FS4-7B
AP7343D-18W5-718FS4-7R

CAD (KiCad official)

Symbol: AP7343D-18W5-7
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT-25 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Diodes Incorporated datasheet (20 pp, sha256 34e6b63381da732c, 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