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SRAH-05BT50 Datasheet

  • SRAH-05BT50

  • NON-ISOLATED DC/DC CONVERTER 5 V Input Vref/2 / 5 A Output

  • 6頁(yè)

  • BEL   BEL

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NON-ISOLATED DC/DC CONVERTER
5 V Input
Vref/2 / 5 A Output
xRAH-05BT50
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Non-Isolated
Fixed frequency (300 kHz)
Under-voltage lockout (UVLO)
Current Sink Capability
RoHS Compliant
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Remote On/Off
OCP/SCP
Low Profile Package (7.82 mm)
Description
The Bel xRAH-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
Voltage
Vref/2
Input
Voltage
5V
Max. Output
Current
5A
Max. Output
Power
6.25 W
Typical
Efficiency
82%
Part Number
Surface Mount
SRAH-05BT50
Part Number
Vertical Mount
VRAH-05BT50
Note:
Add 鈥?鈥?suffix at the end of the model number to indicate 鈥淭ube Packaging鈥? and 鈥淩鈥?for 鈥淩eel
Packaging鈥? and 鈥淕鈥?for 鈥淭ray Packaging鈥?
Absolute Maximum Ratings
Parameter
Input Voltage (continuous)
Output Enable Terminal Voltage
Ambient Temperature
Storage Temperature
Min
-0.3 V
-0.3 V
-40
擄C
-55
擄C
Typ
-
-
-
-
Max
6V
6V
85
擄C
125
擄C
Notes
Input Specifications
Parameter
Input Voltage
Input Current (Source)
Input Current (Sink)
Input Current (No load)
Remote Off Input Current
Input Reflected Ripple Current
(rms)
Input Reflected Ripple Current
(pk-pk)
2
I t Inrush Current Transient
Vref Voltage
Turn-on Voltage Threshold
Turn Off Voltage threshold
Min
4.5 V
-
-
-
-
-
-
0V
4.19 V
-
Typ
5.0 V
-
-
9 mA
30 mA
110 mA
0.02 A s
2.5 V
4.3 V
3.8 V
2
Max
5.5 V
2A
-1.5 A
60 mA
15 mA
50 mA
140 mA
0.05 A s
4V
4.5 V
4.49 V
2
Notes
Measured with simulated source
impedance of 500 nH, 5 Hz to 20 MHz;
& one 270 uF/16 V capacitor with ESR =
0.018 ohm max. at 100 kHz
Notes:
1. All tests are measured at Vref = 2.5 V.
2. All specifications are typical at 25
擄
C unless otherwise stated.
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
鈥?/div>
Tel 201-432-0463
鈥?/div>
Fax 201-432-9542
鈥?/div>
www.belfuse.com

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