power supply - DC 12V to 5V 3A USB Type C - Electrical Engineering

I wish to power my Raspberry Pi 4 from a 12V DC battery and to do that I purchased these two products: Pololu 5V, 9A Step-Down Voltage Regulator D24V90F5 USB 2.0 Type-C Connector Breakout Board I

Power Delivery Injector USB Type-C PD 2.0 Gen1 and Gen2 Super

Dc Usb Step Down Module Mp1484 9v 12v 19v To 5v 3.3v 3a Power

DC 5V 3A Raspberry Pi 4 Power Supply Adapter with Switch Cable

Direct Current Converter 12V to 5V 3A 15W Buck

DC-DC 12V to 5V 3A Micro USB Converter Voltage Step

Power Adapter 5V 3A - Micro USB - Micro Robotics

Buy Power Supply Modules Online

Simple way to use USB Type-C to get 5V at up to 3A (15W) - Power

Adapter 5V 3A Type-C With On/Off Switch for Raspberry Pi 4