This is a reference design of a buck converter based on LTC3406 with 1.2V 0.6A output #referenceDesign #powermanagement #analogdevices #template #reference-design

Build your own Modular LED Sign! Operating Instructions: 1. [Important!] Power your buck converter and adjust the output voltage to 1.5V output before attempting to power the LEDs. If you want it to be simple and static intensity, first count how many LEDs you need to power and then determine your power requirements. E.g. R-24 T-14 F-15 M-33 Total: 86

R2 changes: -Moving to Letter Modules for ease of design -Adding ESP32 for WiFi On/Off and intensity control -Optional: Add unpopulated AA Battery Holder for battery option R1 changes: -Changed LED part to Red LEDs -adjusted resistor value of buck converter -Changed source for USB-C Connector -Removed exposed soldermask on buck converter with negative soldermask expansion -Order with black soldermask Modified by markwu2001: - Adjustable Brightness, - 85-90% Drive Efficiency - <5W Operation (Can use 5V 1A Plug) This project can be purchased from LCSC Original Description: Daddy's second circuit board. A sign to let my wife know when I'm on a call. Activates with a slide switch and is powered by USB-C. #template

Build your own Modular LED Sign! This design prioritizes accessibility which means that the BoM can be ordered on Amazon and that everything was designed with solder-ability in mind. NOTE: This board is still an unfinished prototype that has not been built and verified. Operating Instructions: 1. [Important!] Power your buck converter and adjust the output voltage to 1.5V output before attempting to power the LEDs. If you cannot power the buck converter, just turn the potentiometer counterclockwise to its maximum setting.

TPS62130 Is a Texas instrument Buck Converter IC in the TPS family of power devices. This converter has a maximum input range of...

R2 changes: -Moving to Letter Modules for ease of design -Adding ESP32 for WiFi On/Off and intensity control -Optional: Add unpopulated AA Battery Holder for battery option R1 changes: -Changed LED part to Red LEDs -adjusted resistor value of buck converter -Changed source for USB-C Connector -Removed exposed soldermask on buck converter with negative soldermask expansion -Order with black soldermask Modified by markwu2001: - Adjustable Brightness, - 85-90% Drive Efficiency - <5W Operation (Can use 5V 1A Plug) This project can be purchased from LCSC Original Description: Daddy's second circuit board. A sign to let my wife know when I'm on a call. Activates with a slide switch and is powered by USB-C. #template

R2 w Thread changes: -Moving to Letter Modules for ease of design -Adding MGM210L for Matter on Thread On/Off and intensity control -Shifted A and R letters closer to fix Kerning -Optional: Add unpopulated AA Battery Holder for battery option R1 changes: -Changed LED part to Red LEDs -adjusted resistor value of buck converter -Changed source for USB-C Connector -Removed exposed soldermask on buck converter with negative soldermask expansion -Order with black soldermask Modified by markwu2001: - Adjustable Brightness, - 85-90% Drive Efficiency - <5W Operation (Can use 5V 1A Plug) This project can be purchased from LCSC Original Description: Daddy's second circuit board. A sign to let my wife know when I'm on a call. Activates with a slide switch and is powered by USB-C. #template #arduino-matter

This is a reference design of a buck converter based on LTC3406 with 1.2V 0.6A output #referenceDesign #powermanagement #analogdevices #template

Buck Converter Sublayout taken from the Raspberry Pi Compute Module 4 Carrier Board #template #raspberrrypi

This is a reference design of a buck converter based on LTC3406 with 1.2V 0.6A output #referenceDesign #powermanagement #analogdevices #template #reference-design

This is a reference design of a buck converter based on LTC3406 with 1.2V 0.6A output #referenceDesign #powermanagement #analogdevices #template

Buck, Buck-Boost Switching Regulator Input Voltage Range 4.75V to 28V with 100% Duty Cycle Mode. Output 5V #project-template #voltageregulator #template

Charger IC Lithium Ion/Polymer I2C Controlled, 1- to 4-Cell, 3-A Buck Battery Charger with Dual-Input Selector, MPPT for Solar Panels and Integrated ADC 29-VQFN-HR (4x4)

BQ25570 Energy Harvester Module Boost Charge Buck Conversion Converter Low Power Wireless Network.

R1 changes: -Changed LED part to Red LEDs -adjusted resistor value of buck converter -Changed source for USB-C Connector -Removed exposed soldermask on buck converter with negative soldermask expansion -Order with black soldermask Modified by markwu2001: - Adjustable Brightness, - 85-90% Drive Efficiency - <5W Operation (Can use 5V 1A Plug) This project can be purchased from LCSC Original Description: Daddy's second circuit board. A sign to let my wife know when I'm on a call. Activates with a slide switch and is powered by USB-C.

IMPORTANT NOTICE: Hey, I opened editing permissions and this doc is broken, see the frozen version here: https://www.flux.ai/markwuflux/on-air-markwu2001-remix-r1-backup-freeze-0b49 R1 changes: -Changed LED part to Red LEDs -adjusted resistor value of buck converter -Changed source for USB-C Connector -Removed exposed soldermask on buck converter with negative soldermask expansion -Order with black soldermask Modified by markwu2001: - Adjustable Brightness, - 85-90% Drive Efficiency - <5W Operation (Can use 5V 1A Plug) This project can be purchased from LCSC Original Description: Daddy's second circuit board. A sign to let my wife know when I'm on a call. Activates with a slide switch and is powered by USB-C.

TP5100 is an integrated Lithium battery charger that has a switch mode buck topology. It has all the integrated functions to charge a single or dual cell Lithium battery, along with a few peripheral components #bms

DC/DC synchronous buck regulator based on AOZ2261AQI-15 IC. Output voltage is 12V (R3 and R4) with terminal block connections #project #regulator #voltageregulator

TP5100 is an integrated Lithium battery charger that has a switch mode buck topology. It has all the integrated functions to charge a single or dual cell Lithium battery, along with a few peripheral components #bms

DC/DC synchronous buck regulator based on AOZ2261AQI-15 IC. Output voltage is 12V (R3 and R4) with terminal block connections #template #project-template #regulator #voltageregulator

Buck, Buck-Boost Switching Regulator Input Voltage Range 4.75V to 28V with 100% Duty Cycle Mode. Output 5V With JST connectors(Vin and Vout) and with block terminal connectors(Vin and Vout) #project-template #voltageregulator #project

This is a Reference Design of LT3970 Adjustable, efficient buck regulator. 40V input, 2.5µA quiescent current #dcdc #power #AD #referenceDesign #powermanagement #analogdevices #template #reference-design

Buck Converter Sublayout taken from the Raspberry Pi Compute Module 4 Carrier Board #template #raspberrrypi

This is a reference design of high efficiency synchronous step-down dc-dc converters optimized for battery powered portable applications. #power #dcdc #ti #buck #referenceDesign #powermanagement #texas-instruments #template #reference-design

Buck Converter Sublayout taken from the Raspberry Pi Compute Module 4 Carrier Board #template #raspberrrypi

Industrial-grade embedded I/O controller schematic with 9-36V protected input, 5V buck, 3.3V logic, STM32F103C8T6 MCU, industrial dry/wet/pulse/analog inputs, 12V semiconductor-switched output, RS-485/UART communications, external watchdog, SWD/debug features, and interview-ready engineering notes.

Bluetooth RC car controller using ESP32-WROOM-32E, TB6612FNG dual H-bridge, XL4015 5V buck module, DC barrel battery input, dual 2-pin motor screw terminals, 1000uF VM bulk capacitor, 100nF decoupling, 10k EN pull-up, 30 mil power traces, 10 mil signal traces, and ESP32 antenna edge keep-out.

2 ADS1115 powered by MP1584EN Buck Converted Module

Industrial dual motor controller using an ESP8266 NodeMCU and L298N dual H-bridge for 2x 12V 2A DC motors, with MQTT remote control, manual override buttons, 5-bit DIP addressing, reset input, status LEDs, SS34 reverse-polarity protection, 5A fuse, LM2596 5V buck conversion, TVS surge protection, and future expansion provisions for INA219 current sensing, OTA firmware, RS485, and enclosure integration.

AI Brick Phone — 3.3V Synchronous Buck Upgrade (5V→3.3V ≥1A, Low‑Noise for ESP32 & Audio/ADC)

AI Brick Phone — 3.3V Synchronous Buck Upgrade (5V→3.3V ≥1A, Low‑Noise for ESP32 & Audio/ADC)

This project is designed to measure water level of two tanks using ultrasonic sensors interfaced with the ESP32 microcontroller. The design leverages the processing power and wireless connectivity of the ESP32 to accurately monitor water levels and support automated water management processes. Key components include two ultrasonic sensors for precise distance measurement, robust voltage regulation using an LM2596 buck converter, and reliable power management circuits. Its modular design approach facilitates easy expansion and integration with other systems, making it an ideal solution for both DIY enthusiasts and professionals in automated fluid control and IoT applications. #ESP32 #UltrasonicSensor #WaterLevelSensor #LM2596 #VoltageRegulator #ModularDesign #IoT #DIYProjects #ElectronicsDesign #automation

TPS54336A Buck Converter 24V to 5V 2A

QCS6490 Camera + Audio Carrier (USB-C + TP4056 + 3.3V Buck, 35x35mm 4-layer)

Pi Zero 2 W Power HAT – 6 V Input, 5.2 V Buck to Pi 5 V Header via 1.85 A Fuse, Enhanced Input & Pi Rail Protection (TVS + High-Hold PTC + 5 A Schottky)

36 V Contactor Coil Driver with Safe Kill Loop, 3.3 V Logic, SPI IMU, 24 V/5 A Buck, and ESP32 IO12-Driven E-Stop MOSFET via Series PH2.0 Safety Connectors #E_STOP #MOSFET #PH2.0 #SAFETY

Snowflake: USB‑C PD-Powered Air‑Conditioned Clothing Controller with Integrated XL1509‑ADJ Buck Converter (15 V to 9.3 V Peltier Output), NE555 PWM Fan Control, and LM393 Over‑Temperature Cutoff #USBPD #BuckConverter #Peltier #NE555 #LM393 #PWMControl #OverTemperature

4‑Layer 100×60 mm PCB – Buck wiring and power nets verified (D3 to U7:VSW/GND, U7:FB to 3V3), IC power rails checked, BOM cleaned (duplicate L5 removed, MPNs standardized, mechanical holes excluded), ERC/DRC re-checked, BOM regenerated, UL 61010 isolation corridor annotations preserved, design BuildReady for manufacturing.

TPS54336ADRCR 24V to 5V @ 2A buck converter

USB-C Powered Arduino Nano ESP32 Soil Monitor with Protected 5 V Rail, Integrated eFuse (OVP/UVLO), 3.3 V Synchronous Buck, SPI Level Shifting, and Optimized 4-Layer Layout

Production-ready ESP32-based HDMI + USB 8-bit gaming console using ESP32-WROOM-32E, ADV7513BSWZ HDMI transmitter, FT232RL USB bridge, W25Q32JV external flash, LMR50410 buck regulator, and TLV75801 LDO, with full decoupling, ESD protection, TMDS termination, HDMI/USB/power/programming connectors, buttons, LEDs, and audio, optimized for JLCPCB PCBA #ESP32 #HDMI #USB #GamingConsole #SchoolProject

Production-ready ESP32-based HDMI + USB 8-bit gaming console using ESP32-WROOM-32E, ADV7513BSWZ HDMI transmitter, FT232RL USB bridge, W25Q32JV external flash, LMR50410 buck regulator, and TLV75801 LDO, with full decoupling, ESD protection, TMDS termination, HDMI/USB/power/programming connectors, buttons, LEDs, and audio, optimized for JLCPCB PCBA #ESP32 #HDMI #USB #GamingConsole #SchoolProject

Marine-Grade 5-Channel PWM LED Controller with ESP32 and Integrated 12V→5V Buck

Production-Ready 2-Layer ESP32-S3 Controller PCB: Dual WROOM-1U/WROOM-1 Footprints, ESD-Protected USB-C Debug, Protected 12 V Input (Fuse, Reverse Diode, TVS), TPS5430DDA Buck + TLV70033DDCT LDO Power, Integrated TMC2209 Stepper Driver, 3× 12 V/2 A LED Channels with Screw Terminals, Comprehensive Test Points, Full BOM/Pin Map/Gerbers, Logic Power Supply Audited and Validated #ESP32S3 #PowerManagement #MotorControl #LEDControl #ProductionReady #PowerAudit

12V Stepper Motor Driver Board with A4988, ATmega328P, USB-C CH340 Interface, and Onboard 12V→5V Buck Regulation

Pi Zero 2 W Power HAT – 6 V Input, 5.2 V Buck to Pi 5 V Header via 1.85 A Fuse, Enhanced Input & Pi Rail Protection (TVS + High-Hold PTC + 5 A Schottky)

This project is designed to measure water level of two tanks using ultrasonic sensors interfaced with the ESP32 microcontroller. The design leverages the processing power and wireless connectivity of the ESP32 to accurately monitor water levels and support automated water management processes. Key components include two ultrasonic sensors for precise distance measurement, robust voltage regulation using an LM2596 buck converter, and reliable power management circuits. Its modular design approach facilitates easy expansion and integration with other systems, making it an ideal solution for both DIY enthusiasts and professionals in automated fluid control and IoT applications. #ESP32 #UltrasonicSensor #WaterLevelSensor #LM2596 #VoltageRegulator #ModularDesign #IoT #DIYProjects #ElectronicsDesign #automation

USB‑C UFP USB 3.0 to SATA Bridge Using TI TUSB9261 with W25Q80DV Firmware Flash, 25 MHz Oscillator, Ultra‑Low Capacitance USB ESD Protection, and 1 A 5V‑to‑3.3V Buck Regulator

Relay HAT Schematic – Post‑Validation Fix Plan (ULN2803A, Buck → Pico, LEDs, Optos, Testpoints)

USB Type-C PD Downstream-Facing Port design featuring TPS25740 PD controller, LM5175 buck converter, integrated protections and precision monitoring..