Adjustable Boost Regulator 4-25V

Product Code
:
11767
Brand / Origin
:
Pololu
Quantity
:
3
Without Vat
:
65.64 TL
Quantity:

-

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  • Adjustable boost regulator is a very flexible switching regulator (also called a switched-mode power supply, SMPS, or DC-to-DC converter) that can generate voltages higher than its input voltage. The adjustable range is 4 V to 25 V. The output voltage can be set using the trimmer potentiometer in the upper-right corner of the board. The input voltage range is 1.5 V to 16 V (the input voltage should be kept below the output voltage). The integrated 2 A switch allows for output currents high enough to drive small motors.

    Some example applications include:

    • Powering 5 V or 3.3 V systems from lower-voltage batteries
    • Powering 5 V subsystems (e.g. sensors) in lower-voltage (e.g. 3.3 V) systems
    • Achieving consistent actuator operation when powered by fluctuating batteries
    • Powering high-brightness LEDs or a large number of LEDs in series

    Feature summary

    • input voltage: 1.5 V to 16 V
    • output adjustable from 4 V to 25 V
    • 750 kHz switching frequency
    • 2 A switch (and input) limit
    • integrated over-temperature and over-current shutoff
    • size: 10.7 x 22.4 x 5.8 mm
    • weigh: 1.6 g

    Connections

    The boost regulator has just three connections: the input voltage, ground, and the output voltage. These three connections are labeled on the back side of the PCB, and they are compitable with breadboards and perfboards.

    Setting the output voltage

    The output voltage can be adjusted using a meter and a light load (e.g. a 10 kΩ resistor). Turning the potentiometer clockwise increases the output voltage. The output voltage can be affected by a screwdriver touching the potentiometer, so the output measurement should be done with nothing touching the potentiometer.

    The absolute limit for the input voltage is double the output voltage setting. For example, if the output is set to 6 V, the input must not exceed 12 V. Once the input exceeds the output set point, the output voltage will rise with the input voltage since the input is connected to the output through an inductor and a diode.


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