As many of you already know, a huge number of microcontrollers and digital circuits need 5 or 3.3 Volt power. And the devices controlled by the microcontroller can be powered by much higher voltages. For example, a relay or an electric motor will need 12 or 24 volts. Converting such voltages to 3.3 Volts with a simple LDO is very inefficient. It will get very warm. Common pulse converters are large enough or do not provide high efficiency. 

When developing prototypes of devices, it is not advisable to spend time developing a reliable converter.

TiTAN-PROJECT really appreciates your time and offers a solution to this problem.

Meet! High-efficiency pulse voltage converter TiTAN-O µPower.

Dimensions of TiTAN-O µPower – 13.5 x 12 mm

TiTAN-O µPower is available  with three output voltages: 

3.3 Volts at an input voltage of 4.5 to 36 volts

5 volts at an input voltage from 7 to 36 volts

3.3 Volts at an input voltage of 4.5 to 36 volts

All TiTAN-O µPower modules provide an output current of up to 2 Amps, a default conversion frequency of 1800 kHz and a PWM conversion mode.

This is the most efficient mode for load currents from 0.2 to 2 amperes

You can independently change the conversion frequency from 480 to 2450 kHz by replacing just one resistor, and change the PWM mode to PFM or DCM by rearranging the jumper.

Here are approximate efficiency graphs for the output voltage of 5 Volts, depending on the input voltage and the selected mode.

PWM modePFM modeDFM Mode

You can conduct such experiments yourself:


In the first one, you connect 12 Volts to the source, and connect a 5 Ohm resistor and an ammeter to the output. And in the second there is a 2.5 Ohm resistor.

Calculate the efficiency for the first one: (5 V/ 1A) / (12 V/ 0.44A) = 0.946 efficiency 94.6%

Calculate the efficiency for the second one: (5 V/ 1.9A) / (12 V/ 0.85A) = 0.931 efficiency 93.1%

See how the TiTAN-O µPower heats up and the load

The maximum temperature of the Titan-O µPower overheating protection is 165 0 C

For heat removal, a heat sink is provided on the underside of the TiTAN-O µPower. Do not forget to use it when developing the board.