APR34709SP-13 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	AREF	input	Programs a voltage reference via an external resistor from AREF to GND to enable the synchronous rectification MOSFET drive signal. VAREF absolute max -0.3 to 7V.
2	DRISR	output	Synchronous rectification MOSFET gate drive output. Drive voltage tracks VCC/VDD (e.g., VCC-0.1V for 4.75V<VCC<5.5V). VDRISR absolute max -0.3 to 7V.
3	VDD	power_out	Internal power supply output providing bias for internal logic and the MOSFET driver. Connect a decoupling capacitor to this pin. Internal supply typ 5.5V max.
4	VCC	power_in	Power supply pin, connected to the system output. Input to the internal LDO and system output voltage sensing circuit. Recommended 3.3V to 16V (abs max 28V).
5	DRAIN	passive	Drain pin of the internal N-channel MOSFET. The drain voltage signal is available at this pin. Also connected to the Exposed Pad for thermal/current path. Abs max 60V.
6	VDET	input	Synchronous rectification sense input and dynamic function output; connect to DRAIN through a resistor. ESD sensitive. Abs max -2 to 60V.
7	GND	power_in	Source pin of the internal MOSFET, connected to Ground. Secondary current should flow from GND (pins 7 and 8) to the exposed DRAIN pad.
8	GND	power_in	Source pin of the internal MOSFET, connected to Ground. Secondary current should flow from GND (pins 7 and 8) to the exposed DRAIN pad.
EP	DRAIN	passive	Exposed thermal pad, electrically connected to the DRAIN of the internal MOSFET. Secondary current should flow from GND (pins 7 and 8) to this DRAIN pad. Must be soldered to the PCB for current handling and thermal dissipation.

Key specifications

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

Ordering variants

APR34709SP-13

CAD (KiCad official)

Symbol: APR34709SP-13
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
`apr34709sp-13.step`	122 KB	You want the bare part, or you mark your own boards.
`apr34709sp-13-etched.step`	2.7 MB	You want the part with `APR34709SP-13` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 654 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 bcc52a50ee52b80c, 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