1
DC/DC20SD
v.1.0
DC/DC 2A Step down DC/DC converter
with adjustable output voltage
EN**
Edition: 3 from 11.02.2016
Supercedes the edition: 2 from 15.01.2016
The module’s features:
Step down DC/DC converter with adjustable output voltage
Example of use: step down from 24V to 12V DC
The input voltage range:
8÷28V DC
The output
voltage range: 4,5÷19V DC
The minimum difference between input (lowered) and output
voltage: 3V
The maximum load current 2A (24W)
The AW technical output indicating converter failure triggered
by:
Short-circuit of the output
Output overload
Protections:
Short-circuit protection SCP
Overload protection OLP
OHP overheating protection
High efficiency: 80
÷90%
Optical LED indication
Warranty
– 2 years from the production date
Mounting:
Mounting strip with adhesive tape
Mounting screws
Example of use of the DC/DC20SD step down
DC/DC
converter with adjustable output voltage.
Schematic diagram of the converter operation.
Adjustment of the
converter
output voltage: 4,5V
÷19V DC, 2A max.
1. Technical description
The step down
converter
DC/DC 2A
(
DC/DC20SD)
is used for step down
the input voltage from the range between 8V÷28V
DC to the voltage range of 4,
5V÷24V DC at the output, adjusted with the
P1
potentiometer. The maximum load current is
Imax=2A
(Pmax=24W)
. The 3V difference between the input (lowered)
and output voltage is required for the proper operation of the converter.
The module does not feature galvanic isolation between input/output (IN-AUX) and operates on common "ground" (0V) potential (IN-
and AUX- terminals are galvanically connected = common terminal).
