99l5xv22

A 3.0 hub based on VL813, USB 1 to 4 adapter (certified and tested).

Overview

This project references: https://oshwhub.com/course-examples/usb-mo-kuai-3-0-ji-xian-qi. Thanks to JLCPCB's Bilibili tutorial; you can follow the steps to design this circuit board using JLCPCB's video tutorials on Bilibili. Later DIY soldering will require a hot air gun and related tools.

The original project used Type-C, the Bilibili tutorial video used Type-B, and this project uses a USB male connector.
It can be used to create a USB expansion port.

484ae6640a725bcb0674395ef618616c.mp4

PDF_VL813-based 3.0 HUB, USB 1 to 4 converter (certified and tested).zip

Altium_VL813-based 3.0 HUB, USB 1 to 4 converter (certified and tested).zip

PADS_VL813-based 3.0 HUB, USB 1 to 4 converter (certified and tested).zip

BOM_VL813-based 3.0 expansion dock HUB 1 to 4.xlsx

96428

LM5116 step-down module verification board

A 5V 7A step-down module based on the LM5116 synchronous step-down controller, with a voltage input range of 9-60V.

LM5116 Features:

Peak current simulation mode;
Input voltage range up to 100 V;
Low shutdown current (
can drive standard or logic-level MOSFETs)
; Gate drive current up to 3.5 A;
Free-running or synchronous operation up to 1 MHz;
Selectable diode simulation mode;
Output voltage range 1.215 V to 80 V;
Voltage reference accuracy 1.5% ;
Programmable current limit
; Programmable soft start;
Programmable line undervoltage lockout;
Automatic switching to external bias power supply;
Thermal shutdown

; Input 24V, tested with a 5V/5A load; Enhanced heat dissipation required for long-term operation.

lm5116.pdf

PDF_LM5116 step-down module verification board.zip

Altium_LM5116 step-down module verification board.zip

PADS_LM5116 step-down module verification board.zip

BOM_LM5116 Step-Down Module Verification Board.xlsx

96429

LM5116 step-down module 12V 5A verification board

A 12V 5A step-down module based on the LM5116 synchronous step-down controller, with a voltage input range of 15-60V.

LM5116 Features:

Peak current simulation mode;
Input voltage range up to 100 V;
Low shutdown current (
can drive standard or logic-level MOSFETs)
; Gate drive current up to 3.5 A;
Free-running or synchronous operation up to 1 MHz;
Selectable diode simulation mode;
Output voltage range 1.215 V to 80 V;
Voltage reference accuracy 1.5% ;
Programmable current limit
; Programmable soft start;
Programmable line undervoltage lockout;
Automatic switch to external bias power
supply; Thermal shutdown.

Schematic copied from TI official 12V board.

Input 24V, tested with 12V 2.8A load (maximum load 35W), can operate stably for a long time.

Size adapted to A3 flight controller PMU box, enhancing heat dissipation.

lm5116.pdf

LM5116_12V.pdf

PDF_LM5116 step-down module 12V 5A verification board.zip

Altium_LM5116 step-down module 12V 5A verification board.zip

PADS_LM5116 step-down module 12V 5A verification board.zip

BOM_LM5116 step-down module 12V 5A verification board.xlsx

96430

electronic

Design Files

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.

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Update:2026-03-24 04:20:30

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