APR34309CAMPTR-G1 from Diodes Incorporated, in a SO-8-EP. 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	DRISR	output	Synchronous rectification MOSFET drive output. Drives the gate of the internal SR MOSFET; drive output voltage typ. ≥3.7V at VCC=5V.
2	VDET	bidirectional	Synchronous rectification sense input and dynamic function output; connects to internal MOSFET DRAIN through a resistor. Senses drain-source voltage for SR turn-on/off decisions and provides periodic pulse for output voltage detect.
3	AREF	input	Programs a voltage reference via a resistor from AREF to GND to enable the synchronous rectification MOSFET drive signal. Sets the reference current I_AREF.
4	VCC	power_in	Power supply pin, connected with the system output. Operating range 3.3-5.5V; absolute max 7.5V. Startup voltage typ. 3.1V, UVLO typ. 2.8V.
5	DRAIN	passive	Drain pin of the internal N-Channel MOSFET. The drain voltage signal can be obtained from this pin. Rated 50V, 20A continuous / 80A pulsed.
6	GND	power_in	Source pin of the internal MOSFET, connected to Ground. Pins 6, 7, 8 are tied together and carry secondary current to the exposed DRAIN pad.
7	GND	power_in	Source pin of the internal MOSFET, connected to Ground. Pins 6, 7, 8 are tied together and carry secondary current to the exposed DRAIN pad.
8	GND	power_in	Source pin of the internal MOSFET, connected to Ground. Pins 6, 7, 8 are tied together and carry secondary current to the exposed DRAIN pad.
EP	DRAIN	passive	Exposed pad - drain of the internal MOSFET. Secondary current should flow from GND (pins 6,7,8) to this DRAIN pad. Must be soldered to a PCB copper pour for thermal and electrical connection.

Key specifications

Parameter	Value
Manufacturer	Diodes Incorporated
Package	SO-8-EP
Category	PMIC
Pins	9

Ordering variants

APR34309CAMPTR-G1

CAD (KiCad official)

Symbol: APR34309CAMPTR-G1
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SO-8-EP (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`apr34309camptr-g1.step`	122 KB	You want the bare part, or you mark your own boards.
`apr34309camptr-g1-etched.step`	3.2 MB	You want the part with `APR34309CAMPTR-G1` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 788 faces against 147 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: Diodes Incorporated datasheet (11 pp, sha256 9458611cf2a2321d, 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