FlZSbSB

QC/PD-induced dual-channel DC-DC buck power supply

Overview

This project is a breadboard power supply module using the CH224K chip, supporting DC and QC protocols, and capable of outputting 9V, 12V, and 15V voltages. A TPS54302 step-down converter provides dual 5V and 3.3V voltage outputs to meet various circuit requirements. It is convenient and quick, suitable for various electronic projects and debugging.

The three-in-one board has been tested, and all voltage triggering operations with the CH224K chip are normal, as is the DC-DC converter. Without triggering, VBUS only provides 5V power, and the dual DC-DC converters only output 3.3V.

The triggering board and DC-DC converter board are only designed and have not yet been tested. Their layout and schematics are very similar to the three-in-one board, so theoretically, there should be no problems.

All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.

It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

Hot

Technical Resources More

Search Datasheet?

Supported by EEWorld Datasheet

Technical Videos More

Forum More

Update:2026-03-26 15:07:52

How to charge mobile phone batteries
1. Let's talk about the principle of lithium battery charging. First of all, constant current charging, that is, the current is constant, and the battery voltage gradually increases with the charging
The purchased board has arrived~
I was very happy to receive the board delivered by SF Express today, but I took a look at the shipping address, No. 23 Zhichun Road...╮(╯▽╰)╭, if I had known it was so close, I would have picked it up
1. Start with basic GPIO
1. Initialize the system and turn on the system clockSysCtrlRegs.PCLKCR3.bit.GPIOINENCLK = 1; // GPIO2. Set the GPIO port input and output directionGpioCtrlRegs.GPADIR.bit.GPIO0 = 1;3. Set the value o
The AVI generated by the video capture is too large. If you want to convert it to a smaller size
I use a video capture card. The manufacturer provides an SDK development kit, but I found a BT problem. A 5-minute AVI is 1.23G in size, and the SDK does not have a way to convert it to a smaller file
Show the results of Double Eleven
[i=s]This post was last edited by cruelfox on 2017-11-24 23:57[/i] This "result" was achieved by staying up late and working hard. I stayed up late for several days, not for the rush to buy at the hou
Comparison test between 433MHz (CC1101) and zigbee (CC2530)
The following are the test results of 433Mhz and zigbee. The modules purchased are all mainstream and most shipped modules from TI. 1.1 CC1101:The communication frequency of CC1101 is 433MHz. Its adva

Datasheet More

Circuits More