Step-Up Voltage Regulator U3V7015 - adjustable- 4,5-20V 10A - Pololu 2890

Podwyższająca Converter with adjustable output voltage from 4.5 V to 20 V. the Valid input voltage range of 2.9 V to 20 V and the maximum input current which can handle the layout is 10 A.

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Product description: Converter step-up U3V70A - adjustable - 4,5-20V 10A

The regulator increases the voltage on the input in the range from 2.9 V to 20 V on output, adjustable with a potentiometer from 4.5 V to 20 V under the condition that the output voltage cannot be higher than the input. The system is able to handle the input current with a maximum value of 10 Atypical input current makes 8 And for a few seconds, and then turn on the mode of thermal protection. It is recommended to use current up to 6 A, the inverter can run for many minutes. The output current is a function of the input voltage, output voltage and efficiency of the Converter. Details can be found in the graphs in the remaining part of the description.

Family U3V70x offers one version of the Converter with adjustable output voltage: U3V70A (4.5 to 20 V). Also available are versions with constant voltage: 5, 6, 7,5 V, 9 V, 12 V and 15 Volts. All versions of layouts U3V70x similar to each other, for easy identification on the reverse side is a blank space where you can put your own labels using the marker.


Connection of Converter U3V70A

The module has four output:

  • VIN - the input voltage must not exceed the value of the output voltage.
  • GND - the ground.
  • VOUT - output voltage. In the case of an adjustable version is selected with the potentiometer.
  • ENABLE - switches the system to low power mode. Pin default pulled up to the supply voltage VIN through a resistor of 100 ohms. This means that while leaving the conclusion, which is not connected, the inverter is enabled by default. For the introduction of the system in protection mode, you must specify the status of the low (less than 0.4). In this case, the module consumes only the current flowing through resistor 100 kω this value of 10 µa depending on the attached input voltage.


Pololu U3V60A


Connectors respectively signed on the Board. Terminal pitch 5 mm for joints of SHEETS and 2.54 mm connectors goldpin, which allow for the mounting of the module on the Board contact or connect with wires.

Pololu U3V70A


The kit includes connectors for self-soldering. You can choose popular goldpiny or terminals high current ARK. Through the use of a thicker layer of the PCB plate lugs connectors do not protrude outside of the layout.

Choosing the output voltage for the model U3V70A

Voltage is set using potentiometer 12-point. To select the appropriate value, you can use a multimeter. Turning the potentiometer clockwise increases the output voltage.


Fig.: The choice of the output voltage.

Output current and efficiency of the system step-up U3V70A

The efficiency of the Converter depends on input voltage and output voltage. On average, from 80% to 95 %. The output current is a function of the input voltage, output voltage and efficiency of the Converter. Typically, this value is in the center of the input current.



Fig. 1: Efficiency of the system with output voltage of 5V.


Fig. 1: the efficiency of the system with output voltage of 6V.


Fig. 1: system Efficiency with an output voltage of 7.5 V.

Fig. 1: the efficiency of the system with output voltage of 9V.

Fig. 1: the efficiency of the system with output voltage of 12V.

Fig. 1: the efficiency of the system with output voltage of 15V.

Summing up, the maximum output current proportional to input voltage and output voltage. In addition, its value can change depending on external factors, e.g. temperature or air flow or the radiator.

Specification Converter step-up U3V70A

  • Input voltage range of 2.9 V to 20 V
  • Output voltage: 4.5 V to 20 V adjustable with potentiometer
  • Maximum input current:
    • 10 A - temporary
    • 8 And - for a few seconds
    • 7 A - for a long time
  • Output current: see chart
  • Low current consumption at rest
  • An efficiency level of 80 - 95 %
  • Security:
    • Before reverse power connection
    • Heat is to turn the system off when too high temperature
    • On lock at too low supply voltage is below 2.5 V
    • Short circuit
    • Limit input current to 10 A
  • Two mounting holes for screws M2
  • Dimensions: 40,6 x 15,2 x 4.6 mm
  • Weight (without connectors): 3.4 g

  • Length 41 mm
  • Width 15 mm
  • Height 5 mm
  • Voltage to 2.9 V
  • Voltage from 20.0 V
  • Voltage output from 4.5 V
  • Output voltage to 20 V
  • Current 3.5 V
  • Stabilizer - Type2 switching
  • Stabilizer - Type step-up


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9,90 PLN17,90 PLN1-3 days

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14,90 PLN22,90 PLN

1-2 days

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12,90 PLN-1-3 days

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