← Library

Project pack · v1.0.0

12 V Load Driver

ESP32-C3 board that switches pumps, valves and LED strips at 12 V: AP63203 buck, four AO3400A low-side channels with flyback diodes, screw terminals.

Open in PCB Canvas Download zip (136 KB)

PartFootprintCategoryLCSC
CX5R 16 V, basic part C_0603_1608Metric Capacitors C15849
CX5R 25 V, buck converter output, basic part C_0805_2012Metric Capacitors C45783
CX5R 25 V, bulk, basic part C_0805_2012Metric Capacitors C15850
CX7R 50 V, decoupling, basic part C_0603_1608Metric Capacitors C14663
Screw_Terminal_01x0217 A, through-hole, extended part TerminalBlock_Phoenix_MKDS-1,5-2_1x02_P5.00mm_Horizontal Connectors C474881
USB_C_Receptacle_USB2.0_16PUSB 2.0, 16 pin, SMD + THT legs, extended part USB_C_Receptacle_HRO_TYPE-C-31-M-12 Connectors C165948
D_Schottky D_SMA Diodes C2480
D_Schottky D_SOD-123 Diodes C8598
LSWPA4030S4R7MT, 2 A, buck/boost converters, extended part L_Sunlord_SWPA4030S Inductors C57269
LED~2 V, 20 mA max, basic part LED_0603_1608Metric LEDs C2286
MountingHole3.2 mm hole MountingHole_3.2mm_M3 Mechanical —
ESP32-C3-WROOM-02Wi-Fi + BLE 5, native USB on GPIO18/19, 4 MB flash, extended part ESP32-C3-WROOM-02 Modules and MCUs C2934560
AP63203WU3.8-32 V in, 3.3 V 2 A out; 3.9-4.7 µH, 10 µF in, 2×22 µF out, 100 nF boot; extended part TSOT-23-6 Power C780769
USBLC6-2SC6ST, D+/D− and VBUS clamp, extended part SOT-23-6 Power C7519
R1%, 1/10 W, basic part R_0603_1608Metric Resistors C21190
R1%, 1/10 W, basic part R_0603_1608Metric Resistors C25804
R1%, 1/10 W, basic part R_0603_1608Metric Resistors C22775
R1%, 1/10 W, basic part R_0603_1608Metric Resistors C23186
SW_Pushreset / boot button, basic part SW_Push_1P1T_XKB_TS-1187A Switches C318884
AO3400A30 V 5.7 A, logic level, basic part SOT-23 Transistors C20917