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Voltage converters

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Logic level converter 3,3V / 5V - UART - Iduino ST1167

The module allows to exchange data between systems that use two popular voltages: 3.3 V and 5 V Ensures the connection of the UART interface.
5.0 (2)
Index: OST-14271
Index: OST-14271
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Regular price €1.50 Price €1.50

4-channel logic level converter

The module allows to exchange data between systems that use the most popular levels of voltage: 5 V <-> 3.3 V and 3.3 V <-> 1,8 V. It works in both directions simulatneously....
4.8 (11)
Index: MSX-06117
Index: MSX-06117
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Logic level bi-directional converter, 4-channel - SparkFun BOB-12009

The module allows to exchange data between systems that use the most popular voltages levels: 5 V and 3.3 V and 1.8 V and 2.8 V. Works in both directions simultaneously. It has...
4.9 (6)
Index: SPF-02259
Index: SPF-02259
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Regular price €3.90 Price €3.90

8-channel bi-directional logic level converter

The module allows you to exchange data between systems that use the most popular voltages: from 3.3 V to 5.5 V and vice versa. Eight channels allow for connection of various...
5.0 (2)
Index: MOD-08590
Index: MOD-08590
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Pixel Boost module - 3.3V / 5V voltage buffer for WS2812B diodes

The module is used to control the WS2812B LEDs, in the case of a microcontroller running on voltage  3.3 V. It includes a buffer that allows you to convert voltages. Module...
5.0 (4)
Index: MSX-08790
Index: MSX-08790
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Logic level bi-directional converter, 4-channel - Pololu 2595

Miniature (13 x 10 mm). the module allows to exchange data between systems that use the most popular voltage levels ranging from 1.5 V to 18 V and Vice versa. Four channels to...
4.9 (6)
Index: PLL-02523
Index: PLL-02523
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Logic level converter 3,3V / 5V - I2C UART SPI

The module allows to exchange data between systems that use two popular voltages: 3.3 V and 5 V. It provides connection of interfaces: UART, SPI and I2C.
5.0 (4)
Index: MOD-01513
Index: MOD-01513
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SparkFun Level Shifter - Bi-directional Logic Level Converter - 8 Channel - TXS01018E - SparkFun BOB-

SparkFun Level Shifter is an 8-channel, bidirectional logic level translator equipped with the TXS0108E chip from Texas Instruments. It allows you to switch logic...
Index: SPF-21561
Index: SPF-21561
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Regular price €6.50 Price €6.50

Logic level converter I2C PCA9306 - SparkFun BOB-15439

The module allows bidirectional communication between circuits using different voltage levels for I2C and SMBus. PCA9306 converts voltages from lower range from 1.2 V to 3.3 V...
Index: SPF-01709
Index: SPF-01709
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Regular price €5.90 Price €5.90

Level Shifter Breakout - 5V - 3V voltage level converter - STEMMA QT / Qwiic - Adafruit 5637

Voltage level converter that allows you to obtain an output voltage of 3 V from an input voltage in the range of 3 V to 5 V. It has a built- in 3.3 V voltage stabilizer...
Index: ADA-22389
Index: ADA-22389
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Regular price €4.00 Price €4.00

Uni-directional Logic Level Converter - 8 Isolated Channels - SB Components SKU24094

The unidirectional logic level converter from SB Components converts digital signals with voltages from 5 V to 24 V to voltages in the range of 3.3 V to 5 V. This...
Index: SBC-22965
Index: SBC-22965
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Regular price €19.90 Price €19.90

Level Booster Breakout - 3V - 5V voltage level converter - STEMMA QT / Qwiic - Adafruit 5649

Level Booster Breakout is a board produced by Adafruit, it has the form of a voltage level converter that allows you to obtain an output voltage of 5 V from an input voltage...
Index: ADA-22546
Index: ADA-22546
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TXB0108 - two-way, 8-channel logic converter - Adafruit 395

The module is based on a TXB0108 system, it allows you to exchange data between systems that use the most popular voltage levels: 3.3 V and 5V. It has eight channels, it...
4.5 (2)
Index: ADA-02468
Index: ADA-02468
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Uni-directional Logic Level Converter - 4 Isolated Channels - SB Components SKU24094

The unidirectional logic level converter from SB Components converts digital signals with voltages from 5 V to 24 V to voltages in the range of 3.3 V to 5 V. This...
Index: SBC-22964
Index: SBC-22964
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TLV62569 - converter breakout 5,5V/3,3V 1,2A - Adafruit 4711

The converter is based on the TLV62569 chip . Enables you to get output voltage of 3.3 V. Input voltage range: 2.5 V to 5.5 V. It provides a continuous load current of...
5.0 (1)
Index: ADA-21829
Index: ADA-21829
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Logic level transmitter TXB0104 bi-directional, 4-channel - SparkFun BOB-11771

The module allows to exchange the data between systems that use the most popular voltage levels: from 1.2 V to 3.6 V for VCCA inputs, and from 1.65 V to 5.5 V for VCCB inputs....
Index: SPF-04290
Index: SPF-04290
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Regular price €6.00 Price €6.00

DFRobot Gravity - analog signal isolator

The module prevents the operation interference of the sensors through the insulation of the analog signal and providing an isolated power for sensors. It is supplied with the...
5.0 (2)
Index: DFR-09529
Index: DFR-09529
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Regular price €22.90 Price €22.90

Voltage converter 3-5.5V to 3.3V 2A - TPS62827 - Adafruit 4920

Voltage converter equipped with TPS62827 chip. It allows to obtain from input voltage in the range of 3 V to 5.5 V an output value of 3 .3 V with a current of 2 A . It...
Index: ADA-19251
Index: ADA-19251
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Regular price €9.90 Price €9.90

Qwiic - adapter 1,8V - SparkFun SPX-19017

A voltage adapter that allows you to adjust the voltage of 1.8 V to the 3.3 V level used in the Qwiic system. The module is used when the user has to connect an element with...
Index: SPF-21115
Index: SPF-21115
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Regular price €11.50 Price €10.35
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Logical levels, or 1 isn't equal 1 

The theory of digital circuits in terms of methods of representation of logical states is trivially simple. In the most commonly used so called positive logic - zero means low state (L), while the voltage equal to supply voltage (e.g. 3.3 V or 5 V) corresponds to logic one, i.e. high state (H). So much theory; practice, as usual, is much more complex. Every digital circuit correctly interprets the input voltages within the range specified by the manufacturer, and the same is true of the output signals, which during normal operation cannot exceed a certain narrow range. However, if one circuit (e.g. microcontroller) would be supplied with 5 V, and the other with 3.3 V - it is necessary to use a voltage converter (also called a logic level converter), which will not only ensure proper communication between particular circuits, but also protect lower voltage circuits from potential damage by too high input voltages.

Types and parameters of converters levels of logical

The basic division of voltage converters is based on in which (how many) directions these components can transmit digital signals. Many converters transmit digital signals only in a specific direction, although some designs are able to work correctly regardless of which way the information is transmitted (i.e. which circuit is the transmitter and which the receiver). This is how, among others, very simple but highly efficient voltage converters with a design based on low-power MOSFETs work. Apart from the direction of operation, the key parameters of each converter are: the number of channels, acceptable voltage levels on both sides, as well as the maximum frequency of transmitted signals and - in some cases - propagation times (i.e. the delay between a change in the signal at the output in relation to the corresponding change in the input of a given channel).

Voltage converters at Botland store

In this category you will find a range of very useful modules, perfect for use both in prototype circuits and target solutions. All voltage converters are offered as universal modules with convenient goldpin connectors (soldered or self-assembled) - and ready to use with connecting cables, available in our shop in practical kits. Apart from converters designed to work with digital outputs and inputs, we also have specialised modules allowing I2C communication. These modules (e.g. PCA9306) take into account the specifics of the physical layer of the I2C interface and enable seamless, stable cooperation of systems with different supply voltages.