Step-Down Voltage Regulator D24V5F3 - 3,3V 0,5A - Pololu 2842

Index: PLL-03109 EAN: 5904422360115

A step-down pulse inverter module with an efficiency of 80 % - 93 %. Converts the input voltage from 3.4 V to 36 V to an output value of 3.3 V. The maximum continuous current is 0.5 A.

Step-Down Voltage Regulator D24V5F3 - 3,3V 0,5A - Pololu 2842
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Manufacturer: Pololu

Product description: D24V5F3- step-down converter - 3.3 V 0.5 A

The DC-DC pulse controller converts the input voltage from3.4 V* to 36 Vinto a3.3 Voutput value.It allows for current consumption of up to 0.5 A. The system has a high efficiency of80 % - 93 %.

Pololu D24V5F3 - przetwornica step-down - 3,3V 0,5A

Polol D24V5F3 - step-down converter - 3.3 V 0.5 A.

We offer versions with output voltages:1,8V,2,5V,3,3V,5V,6V,9V,12Vand15V.


The module has four outputs:

  • VIN- input voltage.
  • GND- ground potential.
  • VOUT- output voltage.
  • SHDN- low state (below 0.4 V) switches the system into low power mode, where it consumes only 10 uA - 20 uA for each Volt of supply voltage. Pin is pulled to VIN by default through a 100 kΩ resistor. If the low-power mode is not usedSHDNcan be left unconnected.

You can solder the popular goldpin raster pinned outputs to 2.54 mm (the set is included). The module can be plugged into thecontactboard,connected with wiresor placedin a dedicated printed circuit board.

Efficiency and output current

Efficiency is defined as the ratio of output power to input power (Power out)/(Power in). This is a very important parameter when working with portable energy sources (batteries and accumulators), where the time of operation on one charging cycle counts. The efficiency dependence on the input voltage is shown in the graphs below.

Voltage drop-out

The graph below shows the drop-out voltage dependence on the output current. For example, at 400 m consumption, the output voltage must be 0.5 V higher with an input value.

Dangerous voltage pulses

When connecting the power supply to the module, dangerous, short, high amplitude eclectic impulses (so-called pins) may appear, which may permanently damage the system. Polol's tests show that for voltages above 20 V, the pins may have an amplitude exceeding 42 V. In order to protect against this undesirable phenomenon, it is recommended to solder a capacitor of at least 33 uF / 50 V as close as possible to the pins supplying the converter.

Inverter specifications

  • Input voltage: 3.4 V* to 36 V
  • Output voltage: 3,3 V
  • Accuracy of output voltage: 4 %
  • Maximum output current: 0,5 A
  • Switching frequency: 500 kHz
  • Built-in security:
    • against excessive power consumption
    • before too high a temperature
  • Controller: ISL85415(documentation)
  • Dimensions: 13 x 10 x 3 mm
  • Weight: 1 g (without connectors)

* Lower input voltage limit depending on the drop-out voltage -details on the chart.

Length 13 mm
Width 10 mm
Height 3 mm
Voltage to 3.4 V
Voltage from 36 V
Voltage output from 3.3 V
Output voltage to 3.3 V
Nominal output voltage 3.3 V
Current 0.5 A
Stabilizer - Type2 switching
Stabilizer - Type step-down
Package width 7.7 cm
Package height 8.5 cm
Package depth 0.2 cm
Package weight 0.002 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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Product reviews

Step-Down Voltage Regulator D24V5F3 - 3,3V 0,5A - Pololu 2842


Average grade


Customers opinion
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and come from the post-purchase process.
Alan 25.01.2023 Confirmed purchase Translated review
It does its job. Works in my application.
jacek 18.12.2022 Confirmed purchase Translated review
I bought the D24V5F3 converters first. I installed it and it works now. Smart workmanship, fast delivery.
Stefan M. 08.03.2021 Confirmed purchase Translated review
Great product I use for DIY. Delivery: fast and efficient. I'm happy :-).
Andrzej W. 16.02.2021 Confirmed purchase Translated review
Universal use can be for 5V / 3.3V conversion

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