X7AH-05BT50 Datasheet, PDF (1/5 Pages) Bel Fuse Inc. – NON-ISOLATED DC/DC CONVERTER 5V Input Vref/2 / 5A Output

NON-ISOLATED DC/DC CONVERTER
5V Input Vref/2 / 5A Output
x7AH-05BT50
• Non-Isolated
• Fixed frequency (300kHz)
• Under-voltage lockout (UVLO)
• Remote On/Off
• OCP/SCP
• Low Profile Package (7.82mm)
Description
The Bel x7AH-05BT50 is part of the low cost non-isolated DC/DC converter series. The converter is designed
specifically to provide bus termination voltage in application such as DDR (double data rate) memory where the
bus termination voltage must closely track the I/O bus voltage. The converter accepts a reference input and
programs its output voltage to 50% of the reference. The modules use a SMD or vertical mount package for
ease of layout and space savings.
Part Selection
Output
Input
Voltage
Voltage
Vref/2
5V
Max. Output
Current
5A
Max. Output
Power
6.25W
Typical
Efficiency
82%
Part Number
Surface Mount
S7AH-05BT50
Part Number
Vertical Mount
V7AH-05BT50
Note: 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
Min
Typ
Input Voltage (continuous)
-0.3V
-
Output Enable Terminal Voltage
-0.3V
-
Ambient Temperature
-40°C
-
Storage Temperature
-55°C
-
Max
6V
6V
85°C
125°C
Notes
Input Specifications
Parameter
Input Voltage
Input Current
Input Current (No load)
Remote Off Input Current
Input Reflected Ripple Current
(RMS)
Input Reflected Ripple Current
(pk-pk)
I²t Inrush Current Transient
Turn-on Voltage Threshold
Turn Off Voltage threshold
Min
4.5V
-
-
-
-
-
-
4.19V
-
Typ
5.0V
-
-
9mA
30mA
110mA
0.02A²s
4.3V
3.8V
Max
5.5V
2A
60mA
15mA
50mA
140mA
0.05A²s
4.5V
4.49V
Notes
Measured with simulated source
impedance of 500nH, 5Hz to 20MHz;
& one 270uF/16V capacitor with ESR =
0.018 ohm max. at 100KHz
Notes: 1. All tests are measured at Vref = 2.5V.
2. All specifications are typical at 25°C unless otherwise stated.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com