Step-Down Voltage Regulator D24V10F9 - 9V 1A - Pololu 2833

Index: PLL-03021 EAN: 5904422360177

A step-down pulse inverter module with an efficiency of 80 % - 93 %. Converts the input voltage from 9.1 V to 36 V to an output value of 9 V. The maximum continuous current is 1 A.

Step-Down Voltage Regulator D24V10F9 - 9V 1A - Pololu 2833
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D24V10F inverter - voltage:
Manufacturer: Pololu

Product description: D24V10F9 - step-down converter - 9 V, 1 A.

The DC-DC pulse controller converts the input voltage from 9.1 V* to 36 V into a 9 V output value. It allows for current consumption of up to 1 A. The system has a high efficiency of 80 % - 93 %.

Versions with output voltages of3.3 V,5 V,6 V,9 Vand12 Vare available.

Pololu D24V10F9 - przetwornica step-down - 9V 1A

Pololu D24V10F9 - step-down converter - 9 V, 1 A.

Quotations

The module has four outputs:

  • VIN- input voltage from 9.1 V to 36 V - depending on the drop-out voltage.
  • GND- ground potential.
  • VOUT- output voltage.
  • SHDN- low state (below 0.4 V) switches the system into low power consumption 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.
  • PG- "power good" indicator. The open drain is switched to a low state when the output voltage drops below 80 % or rises above 120 % of the set value (i.e. below 4.5 V for 5 V).

Pololu D24V10F9 - przetwornica step-down - 9V 1A

The popular goldpin raster of the outputs is 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.

Wykres sprawności przetwornicy

Voltage drop-out

The graph below shows the drop-out voltage dependence on the output current. For example, for a 5 A consumption, the output voltage must be 1 V higher with an input value.

Wykres

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 voltagesabove 20 V, the pinsmay have an amplitudeexceeding 42 V.In order to protect against this undesirable phenomenon it is recommended to solder a capacitor of at least 33 uF as close as possible to the pins powering the converter.

Step-down converter specification

  • Input voltage: 9.1 V* to 36 V
  • Output voltage: 9 V
  • Accuracy of output voltage: 4 %
  • Maximum output current: 1 A
  • Switching frequency: 500 kHz
  • Built-in security:
    • against excessive power consumption
    • before too high a temperature
    • soft-start 2 ms
  • Controller: ISL85410(documentation)
  • Dimensions: 18 x 13 x 3.5 mm
  • Four mounting holes for M2 screws
  • Weight: 5 g (without connectors)

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

Length 18 mm
Width 13 mm
Height 4 mm
Voltage to 9.1 V
Voltage from 36 V
Voltage output from 9.0 V
Output voltage to 9.0 V
Nominal output voltage 9.0 V
Current 1 A
Stabilizer - Type2 switching
Stabilizer - Type step-down
Package width 7.8 cm
Package height 8.5 cm
Package depth 0.3 cm
Package weight 0.003 kg

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Step-Down Voltage Regulator D24V10F9 - 9V 1A - Pololu 2833

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