Step-Down Voltage Regulator D24V3F12 - 12V 0,3A - Pololu 2100

A type Converter step-down output voltage of 12 V. the Maximum output current to 300 mA. Voltage range 14 V to 42 V.

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Price 17,50 zł

Description of product: Pololu D24V3F12 Converter step-down 12V 0.3 A

Converter type step-down is used to power systems operating from a voltage of 12 V. Car system is the wide input voltage range from 3.8 V to 42 V (the minimum value depends on the voltage drop-out). The module allows the current consumption to 300 mA is enough value to power ordinary integrated circuits. In our offer we have also version other the output voltages and maximum load current to 600 mA.


The output of the Converter D24V3F12

The module has four output output:

  • VIN - input voltage range from 14 V to 42 V, it is necessary to pay attention to the value of drop-out and short voltage pulses, which can damage the system
  • GND - the ground
  • VOUT- output voltage
  • SHDN is used to indicate the status of the low level (logical zero) causes the system to low power state (approx. 20 uA). To run the system, you must specify the high state (logical unit - voltage above 2.3 V). If the output is not being used, you can combine it with an adjacent terminal VIN.

 Przetwornica impulsowa step-up D24VxFx z wyprowadzeniami goldpin


Connectors respectively signed on the Board. Terminal pitch is 2.54 mm (popular goldpin connectors). The module can be mounted on the contact plate, to connect with wires or solder in a special printed circuit Board.


On request, we can provide the model with zlutowanymi senior goldpin. For this purpose, please leave the details in comments to the order.

The serviceability of the Converter

Efficiency is defined as the ratio of output power to input power (Power out)/(Power in). This is a very important parameter for portable sources of energy (batteries and accumulators), which has a value of working time on one cycle charging. The efficiency of the system pulse is about 80 % - 90 %.


Voltage drop-out

The parameter stated in the documentation as a drop-out voltage is necessary for the proper operation of the system, the minimum difference between input voltage and output. For example, if drop-out is 1 Volt, and preferably the output voltage is 5 V, the voltage supply must be higher than 6V. The figures below show the voltage drop-out for converters D24VxFx.

Hazardous voltage pulses

When connecting power to the module, can appear dangerous, eclectic short pulses of high amplitude (so-called pins), which can damage the system. Test company, Pololu, it follows that for voltages above 20V studs can have an amplitude in excess of 42V. To protect against this undesirable phenomenon wlutowanie recommended capacitor value of at least 33uF as close as possible to the power pins of the Converter.

Specification of the Converter Pololu 24V3F12

  • Input voltage: 14* V 42 V
  • Output voltage: 12 V
  • Input current max: 300 mA
  • An efficiency level of 80 - 90 %
  • The switching frequency is 550 kHz
  • Dimensions: 12 x 10 x 3 mm
  • Weight (without connectors): 0.5 g


* the minimum value depends on the voltage drop-out


  • Length 12 mm
  • Width 10 mm
  • Height 3 mm
  • Voltage to 14.0 V
  • Voltage from 42 V
  • Voltage output from 12.0 V
  • Output voltage to 12.0 V
  • Nominal output voltage 12.0 V
  • Current 0.3 A
  • Stabilizer - Type2 switching
  • Stabilizer - Type step-down


Posting the payment for the order on our account on a business day up to 13:00 means sending the goods on the same day!


The time of payment depends on the hours of ELIXIR session of the sender's bank and the recipient of the transfer (more information on this subject, for example on the website


The table presents available forms of delivery in Poland


Carrier and

Bank wire

by cash


Poczta Polska

terms of service

9,90 PLN17,90 PLN1-3 days

Kurier GLS

terms of service

14,90 PLN22,90 PLN

1-2 days

Paczkomaty 24/7 

terms of service

12,90 PLN-1-3 days

If the amount to pay for products exceeds 500 PLN
Delivery is for free!


  • Free delivery of orders over 500 PLN does not apply to parcels addressed outside of Poland.
  • Free delivery does not apply when changing orders.
  • The delivery period is counted in working days from the date of dispatch of the order.