Isolated DC-DC Power Modules

This step-up/step-down voltage regulator consists of an isolated DC-to-DC power module between an input step-down (buck) regulator and an output step-up (boost) regulator. This enables up to 100 mA at 12 V out or 300 mA at 5 V out from a wide 5.5 V to 36 V input.

^* Max current per channel when the other channel current is zero.

This step-up voltage regulator consists of an isolated DC-to-DC power module in front of a step-up (boost) regulator. This enables up to 100 mA continuous at 12 V out from a 5 V input with full galvanic isolation between the input and output. The 5 V, 300 mA output of the isolation IC is also available.

^* Max current per channel when the other channel current is zero.

This step-down voltage regulator consists of an input step-down (buck) regulator in front of an isolated DC-to-DC power module. This enables up to 300 mA at 5 V (default) or 5.5 V (selectable) out from a wide 5.5 V to 36 V input.

This power module is based on the TI UCC33420 and provides regulated, galvanically isolated DC-to-DC power. The output voltage is set to 5 V by default and can be changed to 5.5 V through a selection pin. Power specs:

This power module is based on the MPS MIE1W0505BGLVH and provides regulated, galvanically isolated DC-to-DC power. The output voltage is set to 5 V by default and can be changed to 3.3 V through a selection pin. Power specs:

This module enables galvanically isolated bidirectional I²C communication between two devices while supplying regulated, isolated power to the target. The bidirectionality applies to both SDA and SCL, which allows for clock stretching. The output voltage is set to 5 V out by default and can be changed to 3.3 V through a selection pin. This version does NOT have connectors. Power specs:

This module enables galvanically isolated bidirectional I²C communication between two devices while supplying regulated, isolated power to the target. The bidirectionality applies to both SDA and SCL, which allows for clock stretching. The output voltage is set to 5 V out by default and can be changed to 3.3 V through a selection pin. This version has JST SH-style 4-pin connectors that are compatible with Sparkfun’s Qwiic and Adafruit’s STEMMA QT. Power specs:

This USB-to-I²C adapter enables a PC or other USB host to act as the controller on an I²C bus, reading and writing data from I²C target devices connected to the bus. It supports clock stretching and I²C clock speeds in excess of 1 MHz. The adapter features complete galvanic isolation between the USB and I²C sides, which prevents unexpected current flow between the two sides and protects the computer and its USB ports from destructive voltages on the I²C bus. This version delivers isolated power to the I²C side at 5V or 3.3V (selectable by an integrated switch with the state latched at start-up).