AP63200WU Buck convertor

Kartik9250·AP63200WU_Buck_convertor

AP63200WU Buck convertor PCB layout, top view — open source board by Kartik9250

About the AP63200WU Buck convertor PCB

AP63200WU Buck convertor is an open source PCB design by Kartik9250, published on GitHub under the MIT license. It is a 2-layer board measuring 32.5 × 36.5 mm, with 13 components from 11 distinct parts.

Other key parts include the AP63200WU. By type, the board carries 5 capacitors, 4 connectors, 1 IC, 1 inductor and 1 resistor.

It belongs with the power & battery designs in this gallery.

From the project

A variable output synchronous buck converter designed as a practice PCB based on AP63200 in KiCad. Takes a USB-C input and delivers a tunable regulated output over USB-A and screw terminals.

A variable output synchronous buck converter designed as a practice PCB in KiCad. Takes a USB-C input and delivers a tunable regulated output over USB-A and screw terminals.

The AP63200WU is a synchronous buck regulator. It switches an internal MOSFET at high frequency, and the inductor + output capacitors smooth that into a steady DC output.

Output voltage is set by a resistor divider on the feedback (FB) pin:

AP63200WU Buck convertor, from the project README — From the project README

Main components on the AP63200WU Buck convertor

AP63200WU Buck convertor bill of materials (BOM)

13 components, 11 distinct parts.

Qty	Part	Footprint	Refs
1	AP63200WU	TSOT-23-6	U1
1	USB_C_Receptacle_PowerOnly_6P	USB_C_Receptacle_GCT_USB4125-xx-x_6P_TopMnt_Horizontal	J1
2	Screw_Terminal_01x02	TerminalBlock_Xinya_XY308-2.54-2P_1x02_P2.54mm_Horizontal	J2, J3
1	USB3_A	USB3_A_Receptacle_Wuerth_692122030100	J4
1	10kΩ	Potentiometer_Bourns_3224W_Vertical	RV1
1	2.2μH	L_0805_2012Metric_Pad1.05x1.20mm_HandSolder	L1
1	10μF	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C1
1	100nF	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C2
1	100pF	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C3
2	22μF	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C4, C5
1	750Ω	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R1

AP63200WU Buck convertor design files

The KiCad project lives in the Kartik9250/AP63200WU_Buck_convertor repository on GitHub; these links point at the commit this page was built from.

Layoutbuck_convertor.kicad_pcb
Schematicbuck_convertor.kicad_sch

AP63200WU Buck convertor: common questions

How big is the AP63200WU Buck convertor PCB?

The AP63200WU Buck convertor measures 32.5 × 36.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the AP63200WU Buck convertor?

13 components, from 11 distinct parts. The full bill of materials is listed on this page.

Where can I download the AP63200WU Buck convertor design files?

From the Kartik9250/AP63200WU_Buck_convertor repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the AP63200WU Buck convertor design in my own project?

Yes, under the terms of its MIT license, which Kartik9250 chose for the repository.

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