Step-Down Voltage Regulator D24V5F15 - 15V 0,5A - Pololu 2847

Index: PLL-03114 EAN: 5904422331535

A step-down pulse inverter module with an efficiency of 80 % - 93 %. Converts the input voltage from 15.1 V to 36 V to an output value of 15.0 V. The maximum continuous current is 0.5 A.

Step-Down Voltage Regulator D24V5F15 - 15V 0,5A - Pololu 2847
€6.50
€5.28 tax excl.
Waiting time: 4-6 weeks
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Manufacturer: Pololu

Product description: PololD24V5F15 - step-down converter - 15 V 0.5 A.

The DC-DC pulse controller converts the input voltage from15.1 V* to 36 Vinto an output value of 15.0 V. It allows for current consumption of up to 0.5 A. The system has a high efficiency of 80 % - 93 %.

Pololu D24V5F15 - przetwornica step-down - 15V 0,5A

Pololu D24V5F15 - step-down converter - 15 V 0.5 A.

We offer versions with output voltages: 1.8V, 2.5V, 3.3V,5V, 6V,9V, 12V and 15V.

Quotations

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 PCB.

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 300 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 pinsmay 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: 15.1 V* to 36 V
  • Output voltage: 15 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 15.1 V
Voltage from 36 V
Voltage output from 15.0 V
Output voltage to 15.0 V
Nominal output voltage 15.0 V
Current 0.5 A
Stabilizer - Type2 switching
Stabilizer - Type step-down
Package width 0 cm
Package weight 0.002 kg

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