X7AH-12FXX0 Datasheet, PDF (4/8 Pages) Bel Fuse Inc. – NON-ISOLATED DC/DC CONVERTERS 3.0V-5.5V Input 1.0V-3.3V/12A Output

NON-ISOLATED DC/DC CONVERTERS
3.0V-5.5V Input
1.0V-3.3V/12A 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 (Vnom) are shown below. The Trim Down resistor should be connected between
the Trim pin and Vout. 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_TrimDown
=^A
V_nom − V_adj
−B
Module
Vout
Trim
GND
Rtrimdown
R_TrimUp
=
V_adj
C
− V_nom
−
D
Module
Vout
Trim
GND
Rtrimup
Vnom
3.3
2.5
1.8
1.5
1.2
1.0
A
161.391
111.674
68.576
50.000
31.240
18.850
B
161.900
208.900
287.900
287.900
208.900
161.900
C
43.330
43.330
43.330
43.330
43.330
43.330
D
100.000
147.000
226.000
226.000
147.000
100.000
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com