Step-Up/Step-Down Voltage Regulator S18V20AHV - 9-30V 2A - Pololu 2573

Index: PLL-02101 EAN: 5904422305710

Step-up/step-down converter with adjustable output voltage from 9 V to 30 V. Maximum current 2 A. Power supply 3 V - 30 V.

Step-Up/Step-Down Voltage Regulator S18V20AHV - 9-30V 2A - Pololu 2573
€33.90
€27.56 tax excl.
Waiting time: 4-6 weeks
Only on request
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Manufacturer: Pololu

Description: Polol S18V20AHV - step-up/step-down converter - adjustable 9-30V 2A.

The inverter has a wide input voltage: from 3 to 30 V. The output is regulated by a potentiometer from 9 to 30 V. With an efficiency of 80 - 90 % and a high current capacity of up to 2 A, the systems are used in many circuits supplying electronic projects and devices.

Przetwornica step-up/step-down

Included: module, 2.54 mm goldpin connectors and ARK connectors for self soldering.

Battery power supply

The ability to raise and lower the input voltage to a fixed value makes the modules well suited for battery-powered devices. The voltage of portable power sources, such as accumulators and batteries, depends on their level of charge. The converter circuit allows you to stabilize the voltage at a selected level.

Downloads

The module has four outputs:

  • VIN-Input voltage from 3 V - 30 V. If a lower voltage is applied, the module will not switch on, higher voltage may damage the system.
  • GND- Mass potential. The system has two GND outputs, which are connected to each other.
  • VOUT- Output voltage regulated by a potentiometer: from 9 to 30 V.
  • ENABLE- switching on the system. By default, the module is switched on - the ENABLE pin is pulled to the power supply through a100 kresistor. In order to switch the inverter into the sleep state (low current consumption), the low state must be given, voltage below 0.7 V. The current in the sleep state is determined by the pull-up resistor of the ENABLE pin, it is from 10 to 20 uF for each Volt of the supply voltage. (for example, for 3 V supply it will be 30 uA, 30 V - about 500 uF).If the sleep function is not used, the ENABLE pin can be left disconnected.

Przetwornica step-up/step-down.

Step-up/step-down converter.

The connectors are properly signed on the board. The kit includes 2.54 mm goldpin raster connectors and larger ARK connectors, which allow the cables to be mounted with a screwdriver.

Przetwornica step-up/step-down

Step-up/step-down converter.

The module can be plugged intoa contact board, connected withwires or solderedinto a dedicated printed circuit board. Mounting is possible with four 2.2 mm diameter holes, matching the ratio of M2 threaded screws - the holes are not threaded.

Output voltage selection

The voltage is set using a potentiometer. When using a potentiometer, select a value from the permitted range of 9 V to 30 V.

Attention!

The manufacturer recommends not to exceed the total input and output voltage above 50 V. For example, when the input voltage is 30 V, the output voltage should not exceed 20 V.

System efficiency

Efficiency is defined as the ratio of input power to output power (Pout/Pin). This parameter is particularly important for battery operation when it is important to keep the system running as long as possible on a single charge. The efficiency of the inverter depends on the flowing current and the input voltage (graph below). On average, it is between 80 - 90 %, which allows the maximum use of battery power.

The efficiency of the system as a function of the current drawn for different input voltages, with the output voltage setto 9 V.

System efficiency as a function of current input for different input voltages, with output voltage set to12 V.

System efficiency as a function of current input for different input voltages, with output voltage set to18 V.

System efficiency as a function of current input for different input voltages, with output voltage set to24V.

Output current

The maximum current that the system can deliverdependson: input voltage and operating temperature. The dependence of the maximum current consumption on the input voltage is shown in the figure below. If the operating temperature reaches too high a value, the module will automatically disconnect the power supply.

The output current depends on the input voltage for different output voltages.

Inverter specifications

  • Input voltage: 3 V to 30 V
  • Output voltage: adjustable 9 - 30 V
  • Accuracy of output voltage: 4 %
  • Maximum output current: 2 A
  • Efficiency of 80 - 90 %
  • System current consumption (quiescent current): 25 mA
  • Possibility to switch the system to standby mode
  • Integrated reverse connection protection against reverse connection of supply voltage
  • Four mounting holes for M2 screws
  • Outlets: 2.54 mm goldpin or ARK type connectors (self-soldering kit)
  • Dimensions: 43.5 x 21 x 9.7 mm
  • Weight (without connectors): 7.5 g

Length 44 mm
Width 21 mm
Height 10 mm
Voltage to 3.0 V
Voltage from 30.0 V
Voltage output from 9.0 V
Output voltage to 30.0 V
Current 2 A
Stabilizer - Type2 switching
Stabilizer - Type step-up/down
Package width 8.5 cm
Package height 7.5 cm
Package depth 1 cm
Package weight 0.012 kg

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