XRAH-05EXX0 Datasheet, PDF (3/9 Pages) Bel Fuse Inc. – NON-ISOLATED DC/DC CONVERTERS

NON-ISOLATED DC/DC CONVERTERS
7.0 Vdc - 13.2 Vdc Input
1.2 Vdc - 3.3 Vdc/5 A Output
General Specifications
Parameter
Efficiency
VO=3.3 V
VO=2.5 V
VO=1.8 V
VO=1.5 V
VO=1.2 V
Switching Frequency
Output Voltage Trim Range
Min
88%
86%
84%
82%
80%
200 kHz
90%
Typ
91%
89%
87%
85%
83%
280 kHz
-
Max
-
-
-
-
-
360 kHz
110%
MTBF
Dimensions (surface mount)
Inches (L × W × H)
Millimeters (L × W × H)
Dimensions (vertical)
Inches (L × W × H)
Millimeters (L × W × H)
Weight
TBD
0.78 x 0.7 x 0.32
19.81 x 17.78 x 8.13
0.7 x 0.308 x 0.65
17.78 x 7.82 x 16.51
-
5g
-
Notes
Vin=10 V, full load.
Calculated Per Bell Core SR-332
(Vin=10 V; Vo=3.3 V; IO =5 A; Ta = 25
°C)
Output Trim Equations
Equations for calculating the trim resistor 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.
Rtrim _ up = ( ^A − B)Kohm
Vo,adj − Vo
Rtrim _ down = (
C
− D)Kohm
Vo − Vo,adj
Module
Module
Vout
Trim
GND
Rtrim-up
Vout
Trim
Rtrim-down
Output Voltage
A
B
C
D
GND
3.3 V
17.2
40.2
53.841
61.7
2.5 V
4.496
5.62
9.556
11.24
1.8 V
3.064
10
3.849
13.83
1.5 V
3.712
5.62
3.254
10.26
1.2 V
3.712
5.62
1.87
10.26
Note: Vo=3.304 V for 3.3 V output voltage; Vo=1.805 V for 1.8 V output voltage; Vo=1.501 V for 1.5 V output
voltage; Vo=1.203 V for 1.2 V output voltage.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com