APR346K6TR-G1 from Diodes Incorporated, in a SOT-26. 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	Voltage-reference programming pin. A resistor R_AREF from AREF to GND (paralleled with ~20 nF recommended) sets the volt-second product threshold (Area2 = R_AREF * K_QS, K_QS ~= 0.42 mA*us) used to enable the SR MOSFET drive signal.
2	GND	power_in	Device ground return.
3	VDET	input	SR MOSFET drain-to-source voltage sense input, connected to the SR MOSFET drain through a series resistor. Absolute-max rating -0.7 V to +160 V; ESD sensitive.
4	VCC	power_in	Supply pin, connected to the converter's system output. Absolute-max -0.3 V to 28 V; recommended operating 0 V to 25 V; startup ~3.1 V, UVLO ~2.8 V; typical operating current 150 uA.
5	CCM	input	Primary-trigger sense input. Receives the primary-switch turn-on signal through an RC network (Y-cap C_CCM, R2, R3); when V_CCM exceeds V_TH_CCM (~0.53 V) the SR gate drive is pulled low with ~20 ns propagation delay.
6	DRISR	output	Synchronous-rectification MOSFET gate-drive output. Drive-output clamp voltage ~15 V, absolute-max -0.3 V to 20 V; typical rise/fall 50 ns / 20 ns into C_L = 4.7 nF.

Key specifications

Parameter	Value
Manufacturer	Diodes Incorporated
Package	SOT-26
Category	PMIC
Pins	6

Ordering variants

APR346K6TR-G1

CAD (KiCad official)

Symbol: APR346K6TR-G1
Footprint: Package_TO_SOT_SMD:SOT-23-6
3D model: SOT-26 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Diodes Incorporated datasheet (11 pp, sha256 e22cc0c9b1f08187, 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