STEMMA QT 3V to 5V Level Booster - 3V/5V voltage level converter with Step-Up converter

Module designed to filter electrical signals. It uses an LC filter, which consists of a coil and a capacitor, to eliminate noise and unwanted components from the electrical signal. It can filter signals with voltages up to 30 V and currents up to 3 A

A module enabling the conversion of input voltage in the range from 1.8 V to 5.3 V into the appropriate negative output voltage. It offers high efficiency in excess of 80%, making it ideal for applications where a lower power negative supply is required, such as biasing sensors or op-amp circuits. Pololu 2839

8-bit Bidirectional Voltage Converter

Voltage-to-current converter module designed for devices with a current signal input. It allows you to linearly convert voltage signals from 0 to 5 V into current signals from 0 to 20 mA

A module with a set of resistors and mechanical switches that allows you to adjust the resistance in the range from 0 to 999990 Ω. SparkFun KIT-13006

The KAmod Level Shift x4 module is a logic level converter that enables the connection of electronic systems powered by different voltages, such as 5 V and 3.3 V. The module provides four bidirectional channels that can operate with digital signals ranging from 1.8 V to 5 V. It is an excellent choice for level conversion in I2C bus applications.

Module with a bidirectional converter for the I2C bus, based on the PCA9306 system. It allows you to connect two I2C modules operating with different voltage levels. SparkFun BOB-15439

A small module with a voltage level converter that allows easy conversion of signals from 3.3V to 5V. It is compatible with a wide range of LED strips, such as NeoPixel. With easy, solderless installation, it supports up to two signal lines, ensuring smooth operation of LEDs at frequencies up to 10 MHz. Adafruit 6066

Module with a voltage level converter 3.3 V - 5 V intended for use in the Qwiic system. It has a built-in Step Up converter providing power supply with a voltage of 5 V and a current of up to 100 mA. SparkFun SPX-17238

Bi-directional 8-channel logic level converter module (1.2-3.6V to 1.7-5.5V) based on TXB0108 chip.

Module with a voltage level converter from 5 V to 3.3 V, intended for use in the STEMMA QT/Qwiic system. It has a built-in voltage stabilizer providing 3.3 V power supply with a current of up to 500 mA. Adafruit 5637

This tiny logic level shifter features four bi-directional channels, allowing for safe and easy communication between devices operating at different logic levels. Pololu - 2595

The module with the four-bit logic translator TXB0104, can work in both directions. Connections using standard goldpin connectors with 2.54 mm pitch. It is compatible with BOB-11771

The SN74LVC1T45DRLR from Texas Instruments is a single-channel, bidirectional voltage level translator, covering a range from 1.65 V to 5.5 V, ideal for signal conversion in microprocessor systems and mobile devices. With automatic detection of the transmission direction and a compact SMD SOT-5X3 package, the device is easy to implement and works well in limited mounting spaces.

4-channel converter of logic levels allowing for connection of systems operating with voltage levels of 1.8 V, 2.5 V, 3.3 V and 5 V. DFRobot DFR0843

BOB-11771 Voltage-Level Translator - TXB0104 Breakout