NON-ISOLATED DC/DC CONVERTERS
9.0 Vdc - 18 Vdc Input
5 Vdc - 12 Vdc/1A Output
xRAH-01K Series
•
Non-Isolated
•
High Efficiency
•
Fixed Frequency (450kHz)
RoHS Compliant
Rev.A
•
Low Profile Package
•
Remote On/Off
•
Active Low/High
•
UL60950-1 Recognized (UL/cUL)
Description
The Bel xRAH-01Kxxx is a part of the low cost non-isolated dc/dc converter Power Module series. The modules
use a SMD or SIP package for ease of layout and space savings. The output is closely regulated and the
efficiency of 9 Vdc output module is typically 86% at full load.
Part Selection
Output
Voltage
5V
9V
12 V
Input Voltage
9 V - 18 V
9 V - 18 V
9 V - 18 V
Max. Output
Current
1A
1A
1A
Max. Output
Power
5W
9W
12 W
Typical
Efficiency
81%
86%
87%
Part Number
Surface Mount
SRAH-01K50x
SRAH-01K90x
SRAH-01KX2x
Part Number
Vertical Mount
VRAH-01K50x
VRAH-01K90x
VRAH-01KX2x
Notes:
1. Add “0” suffix at the end of the model number to indicate “Tube Packaging”, and “R” for “Reel
Packaging”, and “G” for “Tray Packaging”.
2. Use "0" to replace "x" in the above part number to indicate Active High, and "L" to indicate Active Low.
3. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers.
Absolute Maximum Ratings
Parameter
Input Voltage (continuous)
Remote On/Off
Ambient Temperature
Storage Temperature
Min
-0.3 V
-0.3 V
-40
°C
-40
°C
Typ
-
-
-
-
Max
24 V
24 V
85
°C
125
°C
Notes
Input Specifications
Parameter
Input Voltage
Remote Off Input Current
Input Current (no load)
Input Current (full load)
Vo=5 V
Vo=9 V
Vo=12 V
Input Reflected Ripple Current (pk-pk)
Vo=5 V
Vo=9 V
Vo=12 V
Input Reflected Ripple Current (rms)
Vo=5 V
Vo=9 V
Vo=12 V
I t Inrush Current Transient
Turn-on Voltage Threshold
Turn-off Voltage Threshold
2
Min
9V
-
-
-
-
-
-
-
-
-
-
-
-
8.0 V
7.2 V
Typ
-
18 mA
30 mA
-
-
-
55 mA
75 mA
95 mA
15 mA
20 mA
30 mA
0.003 A s
8.5 V
7.6 V
2
Max
18 V
25 mA
45 mA
0.8 A
1.3 A
1.8 A
80 mA
110 mA
130 mA
25 mA
30 mA
40 mA
0.01 A s
8.8 V
8.2 V
2
Notes
With simulated source impedance of
500 nH, 5 Hz to 20 MHz; Use one 100
uF/25 V 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
NON-ISOLATED DC/DC CONVERTERS
9.0 Vdc - 18 Vdc Input
5 Vdc - 12 Vdc/1A Output
Output Specifications
Parameter
Output Voltage Set Point
Vo=5 V
Vo=9 V
Vo=12 V
Line Regulation
Vo=5 V
Vo=9 V
Vo=12 V
Load Regulation
Vo=5 V
Vo=9 V
Vo=12 V
Regulation Over Temperature
(-40°C to +85
°C)
Vo=5 V
Vo=9 V
Vo=12 V
Output Current
Output DC Current Limit
Ripple and Noise (rms)
Vo=5 V
Vo=9 V
Vo=12 V
Ripple and Noise (pk-pk)
Vo=5 V
Vo=9 V
Vo=12 V
Ripple and Noise (rms)
Vo=5 V
Vo=9 V
Vo=12 V
Ripple and Noise (pk-pk)
Vo=5 V
Vo=9 V
Vo=12 V
Turn On Time
Vo=5 V
Vo=9 V
Vo=12 V
Overshoot at Turn on
Output Capacitance
Transient Response
Overshoot
50% ~ 75%
Max Load
Settling Time
Overshoot
75% ~ 50%
Max Load
Settling Time
Overshoot
50% ~ 75%
Max Load
Settling Time
Overshoot
75% ~ 50%
Max Load
Settling Time
Overshoot
50% ~ 75%
Max Load
Settling Time
Overshoot
75% ~ 50%
Max Load
Settling Time
-
-
-
-
0 uF
-
-
-
-
-
-
-
-
-
-
-
-
20 mS
30 mS
30 mS
0%
-
200mV
100uS
200mV
100uS
300mV
150uS
300mV
150uS
350mV
150uS
350mV
150uS
30 mS
45 mS
45 mS
5%
47 uF
300mV
150uS
300mV
150uS
400mV
200uS
400mV
200uS
500mV
200uS
500mV
200uS
-
-
-
40 mV
70 mV
110 mV
70 mV
100mV
160mV
-
-
-
15 mV
25 mV
35 mV
25 mV
35 mV
50 mV
Test conditions:
BW = 0-20 MHz; with two
10 uF ceramic capacitors at
the output.
-
-
-
10 mV
15 mV
20 mV
15 mV
20 mV
30 mV
-
-
-
0.005 A
1.1 A
-
-
-
50 mV
70 mV
90 mV
-
-
3 mV
3 mV
4 mV
80 mV
100 mV
140 mV
1A
1.8 A
5 mV
5 mV
6 mV
Test conditions:
BW = 0-20 MHz; with
π
filter (Co1=10 uF, L=0.47
uH, Co2=10 uF) at the
output
-
-
-
15 mV
25 mV
35 mV
25 mV
45 mV
60 mV
-
-
-
8 mV
15 mV
20 mV
15 mV
25 mV
35 mV
Min
4.90 V
8.82 V
11.76 V
Typ
5V
9V
12 V
Max
5.10 V
9.18 V
12.24 V
Notes
Test condition:
Vin=12 V, lout=full load
5.0 V
9.0 V
di/dt = 0.5 A/uS; Vin = 12
V; and with two 10 uF
ceramic capacitors at the
output
12.0 V
Note:
All specifications are typical at nominal input, full load 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
NON-ISOLATED DC/DC CONVERTERS
9.0 Vdc - 18 Vdc Input
5 Vdc - 12 Vdc/1A Output
General Specifications
Parameter
Efficiency
Vo=5 V
Vo=9 V
Vo=12 V
Switching Frequency
MTBF
Dimensions (surface mount)
Inches (L
×
W
×
H)
Millimeters (L
×
W
×
H)
Dimensions (vertical)
Inches (L
×
W
×
H)
Millimeters (L
×
W
×
H)
Weight
-
77%
82%
83%
400 kHz
81%
86%
87%
450 kHz
14,760,000 hours
-
-
-
480 kHz
Calculated Per Bell Core TR-332 (I
O
=
Nominal; T
a
= 25°C)
Measured at Vin=12 V, full load
Min
Typ
Max
Notes
0.78 x 0.7 x 0.32
19.81 x 17.78 x 8.13
0.7 x 0.308 x 0.65
17.78 x 7.82 x 16.51
5g
-
Note:
All specifications are typical at 25°C unless otherwise stated.
Control Specifications
Parameter
Remote On/Off
Signal Low (Unit On)
Signal High (Unit Off)
Signal Low (Unit Off)
Signal High (Unit On)
-0.3 V
2.5 V
-0.3 V
2.5 V
-
-
-
-
0.4 V
Vin
0.4 V
Vin
xRAH-01KxxL, Remote On/Off pin open, unit
off.
xRAH-01Kxx0, Remote On/Off pin open, unit
on.
Min
Typ
Max
Notes
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
NON-ISOLATED DC/DC CONVERTERS
9.0 Vdc - 18 Vdc Input
5 Vdc - 12 Vdc/1A Output
Efficiency Data
100.0%
80.0%
Efficiency
60.0%
40.0%
20.0%
0.0%
0.100
0.250
0.500
0.750
1.000
Output current (A)
9V
12V
18V
x7AH-01K500
100.0%
90.0%
80.0%
70.0%
60.0%
50.0%
40.0%
30.0%
20.0%
10.0%
0.0%
0.100
0.250
0.500
0.750
1.000
9V
12V
18V
x7AH-01K900
100.0%
90.0%
80.0%
70.0%
60.0%
50.0%
40.0%
30.0%
20.0%
10.0%
0.0%
0.100
0.250
0.500
0.750
1.000
9V
12V
18V
x7AH-01KX20
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
•
Tel 201-432-0463
•
Fax 201-432-9542
•
www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
9.0 Vdc - 18 Vdc Input
5 Vdc - 12 Vdc/1A Output
Thermal Derating Curves
Vin=12 V, Vo=5 V
Vin=12 V, Vo=9 V
Vin=12 V, Vo=12 V
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
•
Tel 201-432-0463
•
Fax 201-432-9542
•
www.belfuse.com
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