Step-Up/Step-Down Voltage Regulator S18V20F9 - 9V 2A - Pololu 2576

Index: PLL-02100 EAN: 5904422351601

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

Step-Up/Step-Down Voltage Regulator S18V20F9 - 9V 2A - Pololu 2576
€48.70 tax excl.
Waiting time: 4-6 weeks
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Manufacturer: Pololu

Product description: S18V20F9 - step-up/step-down converter - 9V 2A

The S18V20F family of inverters featuresa wide input voltageof 3 to 30 V. The output voltage is9 Vor5 V,6 V, 12 Vdependingon the model selected. The efficiency of 80 - 90 % and the high current capacity of up to 2 A make the systems suitable for 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 forbattery-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.


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: 9 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

Dimensions of the 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.

Efficiency of the system

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.

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: 9 V
  • Accuracy of output voltage: 4 %
  • Maximum output current: 2 A
  • Efficiency of 80 - 90 %
  • System current consumption (quiescent current): 5 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 21x 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 9.0 V
Nominal output voltage 9.0 V
Current 2 A
Stabilizer - Type2 switching
Stabilizer - Type step-up/down
Package width 8 cm
Package height 1 cm
Package depth 10.5 cm
Package weight 0.012 kg

Same-day shipping

  • Crediting the payment for the order on our account on a business day before 10:00 AM means sending the goods on the same day.
  • All packages are being delivered by GLS Group courier and covered with insurance up to 1200 EUR.
  • You will receive a link to track your package and monitor the progress of delivery as soon as it is shipped.

Terms of delivery 

GLS - zone 1

Austria, Belgium, Croatia, The Czech Republic, Denmark, Germany, Netherlands, Poland, Slovakia 

  • Delivery time: 2-4 days
  • Delivery cost: from 4.18 EUR
  • Insurance: 1200 EUR
GLS - zone 2

Bulgaria, Estonia, France, Hungary, Italy, Latvia, Lithuania, Luxembourg, Portugal, Romania, San Marino, Slovenia

  • Delivery time: 2-5 days
  • Delivery cost: from 5.35 EUR
  • Insurance: 1200 EUR
GLS - zone 3

Finland, Greece, Ireland, Spain, Sweden 

  • Delivery time: 2-7 days
  • Delivery cost: from 7.67 EUR
  • Insurance: 1200 EUR

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