RT8015AGQW from Richtek Tech, in a WDFN-10-EP(3x3). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	SHDN/RT	input	Oscillator resistor input: a resistor to ground sets the switching frequency (300kHz to 2MHz), and forcing this pin to VDD shuts the device down.
2	GND	power_in	Signal ground for all small-signal and compensation components, connected to PGND at one point.
3	LX	passive	Internal power MOSFET switch output; connect to the inductor.
4	LX	passive	Internal power MOSFET switch output; connect to the inductor.
5	PGND	power_in	Power ground; connect close to the negative terminal of CIN and COUT.
6	PVDD	power_in	Power input supply (2.6V to 5.5V operating); decouple to PGND with a capacitor.
7	PVDD	power_in	Power input supply (2.6V to 5.5V operating); decouple to PGND with a capacitor.
8	VDD	power_in	Signal input supply, normally equal to PVDD; decouple to GND with a capacitor.
9	FB	input	Feedback input receiving the voltage from a resistive divider across the output; 0.8V typical reference.
10	COMP	passive	Error amplifier compensation point; connect external compensation elements to stabilize the control loop.
11	NC	unconnected	Exposed pad, no internal connection; must be soldered to a large PCB and connected to GND for maximum power dissipation.

Key specifications

Parameter	Value
Manufacturer	Richtek Tech
Package	WDFN-10-EP(3x3)
Category	Power Management ICs
Pins	11

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter	Symbol	Min	Typ	Max	Unit	Conditions	Page
Feedback Reference Voltage	VREF	0.784	0.8	0.816	V	VDD = 3.3V, TA = 25°C	5
Input Voltage Range	VDD	2.6		5.5	V		5
Feedback Leakage Current	IFB		0.1	0.4	μA		5
DC Bias Current, Shutdown				1	μA	Shutdown	5
Switching Leakage Current				1	μA	SHDN/RT = VIN = 5.5V	5
Output Voltage Load Regulation		-0.2	0.02	0.2	%	Measured in Servo Loop, VCOMP = 0.2V to 0.7V	5
Switching Frequency		0.8	1	1.2	MHz	ROSC = 332k	5
Switching Frequency Range		0.3		2	MHz		5
Switch On Resistance, High	RPMOS		110	160	mΩ	ISW = 0.5A	5
Switch On Resistance, Low	RNMOS		110	170	mΩ	ISW = 0.5A	5
Peak Current Limit	ILIM	3.2	3.8		A		6
DC Bias Current, Active			460		μA	Active, VFB = 0.78V, Not Switching	5
Output Voltage Line Regulation			0.04		%/V	VIN = 2.7V to 5.5V	5
Error Amplifier Transconductance	gm		800		μs		5
Current Sense Transresistance	RT		0.4		Ω		5
Under Voltage Lockout Threshold, Rising			2.4		V	VDD Rising	6
Under Voltage Lockout Threshold, Falling			2.3		V	VDD Falling	6
Supply Input Voltage	VDD, PVDD	2.6		5.5	V		5
Junction Temperature Range	TJ	-40		125	°C		5
Ambient Temperature Range	TA	-40		85	°C		5
Supply Input Voltage	VDD, PVDD	-0.3		6	V		5
LX Pin Switch Voltage		-5		7.5	V	<200ns	5
LX Pin Switch Current				4	A		5
Power Dissipation	PD			909	mW	TA = 25°C, WDFN-10L 3x3	5
Junction Temperature	TJ			150	°C		5
Lead Temperature				260	°C	Soldering, 10 sec.	5
Storage Temperature Range		-65		150	°C		5
ESD Susceptibility, HBM				2	kV	Human Body Mode	5
ESD Susceptibility, MM				200	V	Machine Mode	5
Package Thermal Resistance, Junction to Ambient	θJA		110		°C/W	WDFN-10L 3x3, natural convection, TA = 25°C, JEDEC single layer board	5

CAD (KiCad official)

Symbol: RT8015AGQW
Footprint: Package_DFN_QFN:WDFN-10-1EP_3x3mm_P0.5mm_EP1.8x2.5mm
3D model: WDFN-10-EP(3x3), generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.75 mm nominal WSON height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)

Provenance

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

Datasheet: Richtek Tech datasheet (14 pp, sha256 3ff331ddeb9f2250, retrieved 2026-10-31, tier: manufacturer)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF

RT8015AGQW

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3D Model

Symbol & Footprint

Schematic Symbol

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Datasheet

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