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About Reference Design Library

Instead of searching many manufacturer sites or calling on companies to find and compare designs, now you can search for designs based on the circuit’s performance using Digi-Key’s Reference Design Library.

The Reference Design Library was created in order to:

  • Save Engineers time
  • Deliver ideas, fast
  • Sift through designs based on performance
  • Provide designs conveniently accompanied by their schematics

Visit often as new designs are being added weekly and improvements will be made based on your constructive feedback.

Newest Designs

LC231X: USB 2.0 to UART Bridge Module

Manufacturer: FTDI, Future Technology Devices International Ltd

The LC231X module is a low cost USB to UART bridge using FTDI’s FT231X to transfer data at up to 3M Baud. Ideal for programming Arduino Pro, ESP modules etc.. It also provides the pinout which follows the industry standard FTDI TTL cable interface. The module provides the UART interface with full modem handshaking control too.

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STEVAL-POEL45W1: 45W PoE LED Driver with BLE Control

Manufacturer: STMicroelectronics

The STEVAL–POEL45W1 is a PoE-enabled constant current LED driver with a PM8805 Power over Ethernet interface, LED6000 LED driver and Bluetooth module SPBTLE-1S for smart dimming control. The STEVAL–POEL45W1 evaluation board is designed to provide a power output of 48 W and can dim LEDs down to 1% of the maximum brightness without any flicker. Remote on/off and dimming control can be managed through the PoE Lighting android application available free of charge on the Google Play store.

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DC484A: 12mA @ 13V Max, 2.7 ~ 5V in, Boost

Manufacturer: Linear Technology/Analog Devices

DC484A features the LT1937 constantcurrent white LED driver in a small SOT23 ThinSOT package. The demo board is designed to demonstrate the high efficiency performance and the small size of the LT1937.

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