NON-ISOLATED DC/DC CONVERTERS
9.0V-18V Input
5V/1A & 9V/1A & 12V/1A Output
x7AH-01K Series
•
•
•
Non-Isolated
High Efficiency
Fixed Frequency (450kHz)
•
•
•
Low Profile Package
Remote On/Off
Active Low/High
Description
The Bel x7AH-01Kxx0 is part of the low cost non-isolated DC/DC converter series. The modules use a SMD or
vertical package for ease of layout and space savings. The output is closely regulated and the efficiency of 12V
output module is typically 87% at full load.
Part Selection
Output
Voltage
5V
9V
12V
Input
Voltage
9V – 18V
9V – 18V
9V – 18V
Max. Output
Current
1A
1A
1A
Max. Output
Power
5W
9W
12W
Typical
Efficiency
81%
86%
87%
Part Number
Surface Mount
S7AH-01K50x
S7AH-01K90x
S7AH-01KX2x
Part Number
Vertical Mount
V7AH-01K50x
V7AH-01K90x
V7AH-01KX2x
Note:
Use "0" to replace "x" in the above part number to indicate Active High, and "L" to indicate Active Low.
Add “0” suffix at the end of the model number to indicate “Tube Packaging”, and “R” for “Reel Packaging”,
and “G” for “Tray Packaging”.
Absolute Maximum Ratings
Parameter
Input Voltage (continuous)
Remote On/Off
Ambient Temperature
Storage Temperature
Min
-0.3V
-0.3V
-40°C
-40°C
Typ
-
-
-
-
Max
24V
24V
85°C
125°C
Notes
Input Specifications
Parameter
Input Voltage
Input Current (no load)
Input Current (full load)
Vo=5.0V
Vo=9.0V
Vo=12.0V
Input Reflected Ripple Current (pk-pk)
Vo=5.0V
Vo=9.0V
Vo=12.0V
Input Reflected Ripple Current (RMS)
Vo=5.0V
Vo=9.0V
Vo=12.0V
2
I t Inrush Current Transient
Turn-on Voltage Threshold
Turn-off Voltage Threshold
Min
9V
-
-
-
-
-
-
-
-
-
-
-
8.0V
7.2V
Typ
-
30mA
-
-
-
55mA
75mA
95mA
15mA
20mA
30mA
0.003A
2
s
8.5V
7.6V
Max
18V
45mA
0.8A
1.3A
1.8A
80mA
110mA
130mA
25mA
30mA
40mA
0.01A
2
s
8.8V
8.2V
Notes
With simulated source impedance
of 500nH, 5Hz to 20MHz; Use one
100uF/25V tantalum capacitor at
the input.
Note:
All specifications are typical at 25°C unless otherwise stated.
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
•
Tel 201-432-0463
•
Fax 201-432-9542
•
www.belfuse.com
BEL [ BEL FUSE INC. ]
