X7AH-07A1A0 Datasheet, PDF (3/6 Pages) Bel Fuse Inc. – NON-ISOLATED DC/DC CONVERTERS 12 V Input 0.9 V-3.3 V/7 A Output

NON-ISOLATED DC/DC CONVERTERS
12 V Input 0.9 V-3.3 V/7 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
VO=0.9 V
Switching Frequency
Output Trim Range (wide trim)
Output Trim Range (narrow trim)
VO=1.2 V-3.3 V
VO=0.9 V
Min
85%
83%
80%
78%
75%
71%
250 kHz
-
90% Vo
-
Typ
88%
86%
83%
81%
78%
74%
300 kHz
-
-
-
Max
-
-
-
-
-
-
350 kHz
403% Vo
110% Vo
110% Vo
MTBF
8,202,646 hours
Dimensions (surface mount)
Inches (L × W × H)
Millimeters (L × W × H)
Dimensions (vertical)
Inches (L × W × H)
Millimeters (L × W × H)
Weight
0.78 x 0.70 x 0.32
19.81 x 17.78 x 8.13
0.70 x 0.308 x 0.65
17.78 x 7.82 x 16.51
-
5g
-
Notes
Measured at Vin=12 V, full load and
Ta=25 °C
VO=0.9 V
Calculated Per Bell Core TR-332
(Vin=12 V; Vo=3.3 V; IO = 5.6 A; Ta =
25°C)
Control Specifications
Parameter
Min
Typ
Remote On/Off
Signal Low (Unit Off)
-0.3 V
-
Signal High (Unit On)
3.5 V
-
Max
Notes
1V
Remote on/off pin open, unit on.
14 V
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 Up resistor should be connected between
the Trim pin and Ground.
R_trimup
=
6.06
V_adj − V_nom
− 1.05
Module
Vout
Trim
GND
Rtrimup
Note: Output voltage Vo=0.9 V when Rtrimup is not connected.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com