Name: LM3671 3.3V Buck Converter Breakout - 3.3V Output 600mA Max
Brand: Adafruit

ADA2745 · AdafruitActive

Adafruit product #2745 — built on LM3671.

Part number	ADA2745
Manufacturer	Adafruit
Category	Power › Voltage Regulators & DC-DC
Pins	4
Voltage (max)	3.3 V
Current	600 mA
Frequency	2 MHz

LM3671 3.3V Buck Converter Breakout - 3.3V Output 600mA Max pinout

Pin	Name	Type
1	GND	ground
2	3.3V	power
3	VIN	power
4	EN	bidirectional

Schematic symbol and footprint

Footprint: Adafruit LM3671 Buck Converter (header pads) — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.

Supplier	Stock	Price	Status
Mouser	59	$4.95 (1+)		View
DigiKey	227	$4.95 (1+)	Active	View

Stock and prices from the suppliers, checked 2026-10-08; excluding tax and shipping.