Step-Down Voltage Regulator D24V5F2 - 2,5V 0,5A - Pololu 2841

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Product Code:: 47769064

Step-Down Voltage Regulator D24V5F2 - 2,5V 0,5A - Pololu 2841

39 GEL

Brand Pololu
Shipping from Poland
Post delivery June 23
Shipping cost for orders to Georgia from GEL 188

Properties

Voltage From: 36 V
Выходное напряжение от: 2.5 V

Features

Length: 13 mm

General characteristics

Voltage To: 3.0 V
Стабилизатор - Тип: step-down
Стабилизатор - Тип 2: switching
Выходное напряжение до: 2.5 V

Other features

Brand: Pololu
Nominal output voltage: 2.5 V

Power

Current: 0.5 A

Weight & dimensions

Width: 10 mm
Height: 3 mm

Description

Product description: D24V5F2- step-down converter - 2.5 V 0.5 A

The DC-DC pulse controller converts the input voltage from3 V* to 36 Vinto a2.5 Voutput value. It allows a current consumption of up to 0.5 A. The system has a high efficiency of 80 % - 93 %.

Polol D24V5F2 - step-down converter - 2.5 V 0.5 A.

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

Quotations

The module has four outputs:

VIN- input voltage from 3 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 the 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 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 inverter.

Inverter specifications

Input voltage: 3 V* to 36 V
Output voltage: 2,5 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)