XRAH-03L2A0 Datasheet, PDF (4/9 Pages) Bel Fuse Inc. – NON-ISOLATED DC/DC CONVERTERS

NON-ISOLATED DC/DC CONVERTERS
5 Vdc - 24 Vdc Input 0.9 Vdc - 3.3 Vdc/3 A, 5 Vdc/2 A Output
Output Trim Equations
Equations for calculating the trim resistor (in kΩ) given the desired adjusted voltage (Vadj) and the nominal output
voltage of the converter (Vo) are shown below. The Trim Up resistor should be connected between the Trim pin
and Ground. Only one of the resistors should be used for any given application.
R_{trim− up}
=
6.928
V_adj − V_o
−1
Vo (V)
0.902
1.2
1.5
1.8
2.5
3.3
5
Rtrim(kΩ)
Open
22.248
10.585
6.715
3.335
1.889
0.691
Note: Output voltage Vo=0.902 V when Rtrim_up is not connected.
Module
Vout
Trim
GND
Rtrim-up
Efficiency Data
5.0V module
100.0%
90.0%
80.0%
70.0%
60.0%
50.0%
40.0%
0.2A 0.5A
1A
1.5A
2A
output current
9.0V
12.0V
24.0V
3.3V module
100.0%
90.0%
80.0%
5V
70.0%
12V
60.0%
24V
50.0%
40.0%
0.3A
0.75A
1.5A
2.25A
3A
Output current
1.8V module
100.0%
90.0%
80.0%
5V
70.0%
12V
60.0%
18V
50.0%
40.0%
0.3A
0.75A
1.5A
2.25A
3A
Output current
0.9V module
100.0%
90.0%
80.0%
5V
70.0%
7V
60.0%
9V
50.0%
40.0%
0.3A
0.75A
1.5A
2.25A
3A
Output current
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com