NON-ISOLATED DC/DC CONVERTERS
4.5 Vdc - 13.2 Vdc Input
0.9 Vdc - 5.0 Vdc/3 A Output
xRAH-03Exx0 Series
•
•
•
•
Non-Isolated
Trim Function
RoHS Compliant
•
•
•
Remote On/Off
OCP/SCP
Rev.A
Low Profile Package (7.82 mm)
UL60950-1 Recognized (UL/cUL)
Under-Voltage Lockout (UVLO)
Description
The Bel xRAH-03Exx0 is 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
3.3 Vdc output module is typically 93% at full load.
Part Selection
Output
Voltage
5.0 Vdc
3.3 Vdc
2.5 Vdc
1.8 Vdc
1.5 Vdc
1.2 Vdc
1.0 Vdc
0.9 Vdc
Input Voltage
8.0 Vdc - 13.2 Vdc
4.5 Vdc - 13.2 Vdc
4.5 Vdc - 13.2 Vdc
4.5 Vdc - 13.2 Vdc
4.5 Vdc - 13.2 Vdc
4.5 Vdc - 13.2 Vdc
4.5 Vdc - 13.2 Vdc
4.5 Vdc - 13.2 Vdc
Max. Output
Current
3A
3A
3A
3A
3A
3A
3A
3A
Max. Output
Power
15 W
9.9 W
7.5 W
5.4 W
4.5 W
3.6 W
3W
2.7 W
Typical
Efficiency
95%
93%
91%
88%
87%
85%
84%
82%
Part Number
Surface Mount
SRAH-03E500
SRAH-03E330
SRAH-03E250
SRAH-03E180
SRAH-03E150
SRAH-03E120
SRAH-03E100
SRAH-03E090
Part Number
Vertical Mount
VRAH-03E500
VRAH-03E330
VRAH-03E250
VRAH-03E180
VRAH-03E150
VRAH-03E120
VRAH-03E100
VRAH-03E090
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. 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)
Output Enable Terminal Voltage
Ambient Temperature
Storage Temperature
Min
-0.3 V
-0.3 V
0
°C
-40
°C
Typ
-
-
-
-
Max
14 V
13.2 V
70
°C
100
°C
Notes
Input Specifications
Parameter
Input Voltage
Input Current (no load)
Input Current (full load)
Remote Off Input Current
Input Reflected Ripple Current
(pk-pk)
Input Reflected Ripple Current
(rms)
2
I t Inrush Current Transient
Turn-on Voltage Threshold
Turn-off Voltage Threshold
Min
4.5 V
-
-
-
-
-
-
-
-
Typ
-
30 mA
-
4 mA
75 mA
30 mA
0.02 A s
4.1 V
3.3 V
2
Max
13.2 V
-
3A
-
150 mA
60 mA
0.08 A s
4.5 V
4.0 V
2
Notes
Min. input voltage for 5.0 V output module
should be 8.0 V
With simulated source impedance of
500 nH, 5 Hz to 20 MHz; Use two
270 uF/16 V Oscon capacitors with ESR =
0.018 ohm max. at 100 kHz at 25
°C
Not applicable for 5.0 V output.
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
4.5 Vdc - 13.2 Vdc Input
0.9 Vdc - 5.0 Vdc/3 A Output
Output Specifications
Parameter
Output Voltage Set Point
V
O
=5.0 V
V
O
=3.3 V
V
O
=2.5 V
V
O
=1.8 V
V
O
=1.5 V
V
O
=1.2 V
V
O
=1.0 V
V
O
=0.9 V
Line Regulation
V
O
=5.0 V
V
O
=3.3 V
V
O
=2.5 V
V
O
=1.8 V
V
O
=1.5 V
V
O
=1.2 V
V
O
=1.0 V
V
O
=0.9 V
Load Regulation
V
O
=5.0 V
V
O
=3.3 V
V
O
=2.5 V
V
O
=1.8 V
V
O
=1.5 V
V
O
=1.2 V
V
O
=1.0 V
V
O
=0.9 V
Regulation Over Temperature
(0
°C
to 70
°C)
Output Current
Current Limit Threshold
Short Circuit Surge Transient
Ripple and Noise (rms)
Ripple and Noise (pk-pk)
Turn on Time
Overshoot at Turn on
Output Capacitance
Transient Response
50% ~ 100%
Max Load
100% ~ 50%
Max Load
50% ~ 100%
Max Load
100% ~ 50%
Max Load
50% ~ 100%
Max Load
100% ~ 50%
Max Load
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
-
-
-
-
-
-
-
-
-
-
-
-
150 mV
60 uS
150 mV
60 uS
110 mV
60 uS
110 mV
60 uS
110 mV
60 uS
110 mV
60 uS
200 mV
120 uS
200 mV
120 uS
150 mV
120 uS
150 mV
120 uS
150 mV
100 uS
150 mV
100 uS
-
-
0 uF
-
-
-
-
-
-
-
-
-
0A
3.3 A
-
-
15 mV
10 mV
8 mV
8 mV
5 mV
5 mV
5 mV
5 mV
20 mV
-
-
0.02 A s
15 mV
50 mV
-
0%
-
2
Min
4.900 V
3.234 V
2.450 V
1.764 V
1.470 V
1.176 V
0.980 V
0.882 V
-
-
-
-
-
-
-
-
Typ
5.0 V
3.3 V
2.5 V
1.8 V
1.5 V
1.2 V
1.0 V
0.9 V
10 mV
8 mV
6 mV
6 mV
5 mV
5 mV
5 mV
5 mV
Max
5.100 V
3.366 V
2.550 V
1.836 V
1.530 V
1.224 V
1.020 V
0.918 V
15 mV
10 mV
10 mV
10 mV
8 mV
8 mV
8 mV
8 mV
25 mV
20 mV
15 mV
15 mV
10 mV
10 mV
10 mV
10 mV
40 mV
3A
8 A
0.08 A s
40 mV
100 mV
60mS
3%
1200 uF
2
Notes
Test condition:
Vin=8 V, lout=full load
BW = 0-20 MHz.
BW = 0-20 MHz.
V
O
=5 V
V
O
=3.3 V
di/dt = 0.5 A/uS;
Vin = 8 V;
Ta = 25
°C
and with a
220 uF Tan. capacitor on
output
V
O
=2.5 V
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
4.5 Vdc - 13.2 Vdc Input
0.9 Vdc - 5.0 Vdc/3 A Output
Output Specifications (continued)
Parameter
Transient Response
50% ~ 100%
Max Load
100% ~ 50%
Max Load
50% ~ 100%
Max Load
100% ~ 50%
Max Load
50% ~ 100%
Max Load
100% ~ 50%
Max Load
50% ~ 100%
Max Load
100% ~ 50%
Max Load
50% ~ 100%
Max Load
100% ~ 50%
Max Load
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
110 mV
60 uS
110 mV
60 uS
110 mV
60 uS
110 mV
60 uS
110 mV
60 uS
110 mV
60 uS
110 mV
60 uS
110 mV
60 uS
110 mV
60 uS
110 mV
60 uS
150 mV
100 uS
150 mV
100 uS
150 mV
120 uS
150 mV
120 uS
150 mV
100 uS
150 mV
100 uS
150 mV
100 uS
150 mV
100 uS
150 mV
100 uS
150 mV
100 uS
Min
Typ
Max
Notes
V
O
=1.8 V
V
O
=1.5 V
V
O
=1.2 V
di/dt = 0.5 A/uS; Vin =
8 V; Ta = 25
°C
and with
a 220 uF electrolytic
capacitor on output
V
O
=1.0 V
V
O
=0.9 V
Note:
All specifications are typical at 8V input, full load at 25
°C
unless otherwise stated.
General Specifications
Parameter
Efficiency
V
O
=5.0 V
V
O
=3.3 V
V
O
=2.5 V
V
O
=1.8 V
V
O
=1.5 V
V
O
=1.2 V
V
O
=1.0 V
V
O
=0.9 V
Switching Frequency
Output Trim Range
Protection Features
MTBF
Dimensions (surface mount)
Inches (L
×
W
×
H)
Millimeters (L
×
W
×
H)
Dimensions (vertical)
Inches (L
×
W
×
H)
Millimeters (L
×
W
×
H)
Weight
8,278,709 hours
0.78 x 0.7 x 0.32
19.812 x 17.78 x 8.128
0.7 x 0.308 x 0.65
17.78 x 7.82 x 16.51
5.1 g
Calculated Per Bell Core SR-332 (I
O
=
80%load; T
a
= 25
°C)
1
Min
91%
89%
87%
84%
83%
81%
80%
78%
200 kHz
90% V
O
Typ
95%
93%
91%
88%
87%
85%
84%
82%
300 kHz
-
Max
-
-
-
-
-
-
-
-
400 kHz
110% V
O
Notes
Measured at Vin=8 V, full load
For all outputs
-
-
Notes:
All specifications are typical at 25
°C
unless otherwise stated.
1. Min. of 0.9 V output should be 100%Vo.
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
4.5 Vdc - 13.2 Vdc Input
0.9 Vdc - 5.0 Vdc/3 A Output
Control Specifications
Parameter
Remote On/Off
Signal Low (Unit On)
Signal High (Unit Off)
-0.3 V
2.8 V
-
-
1V
13.2 V
Remote on/off pin open, unit on.
Min
Typ
Max
Notes
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 Down resistor should be connected between the Trim
pin and Vout. The Trim Up resistor should be connected between the Trim pin and Ground. Only one of the
resistors should be used for any given application.
Vout
R
TrimDown
A
=
−
B
V
nom
−
V
adj
Module
Trim
GND
Rtrimdown
Vout
R
TrimUp
=
V
adj
C
−
D
−
V
nom
A
61.940
53.840
9.596
3.850
3.120
1.790
0.511
X
B
29.400
61.700
15.620
13.830
14.420
10.910
3.490
X
Module
Trim
GND
Rtrimup
Vnom
5.0
3.3
2.5
1.8
1.5
1.2
1.0
0.9
C
11.760
17.200
4.496
3.064
3.536
3.536
1.992
0.960
D
14.700
40.200
10.000
10.000
10.000
6.490
1.000
0.100
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
4.5 Vdc - 13.2 Vdc Input
0.9 Vdc - 5.0 Vdc/3 A Output
Efficiency Data
5V module
100.0%
95.0%
90.0%
85.0%
80.0%
75.0%
70.0%
65.0%
60.0%
0.3
0.8
1.5
2.3
3.0
Output current
3.3V module
100.0%
95.0%
90.0%
85.0%
80.0%
75.0%
70.0%
65.0%
60.0%
0.3
0.8
1.5
2.3
3.0
Output current
Efficiency
Efficiency
8V
13.2V
4.5V
8V
13.2V
2.5V module
100.0%
95.0%
90.0%
1.8V module
100.0%
95.0%
90.0%
Efficiency
4.5V
8V
13.2v
Efficiency
85.0%
80.0%
75.0%
70.0%
65.0%
60.0%
0.3
0.8
1.5
2.3
3.0
Output current
85.0%
80.0%
75.0%
70.0%
65.0%
60.0%
0.3
0.8
1.5
2.3
3.0
Output current
4.5V
8V
13.2V
1.5V module
95.0%
90.0%
1.2V module
95.0%
90.0%
Efficiency
85.0%
80.0%
75.0%
70.0%
65.0%
60.0%
4.5V
8V
13.2V
4.5V
8V
13.2V
Efficiency
85.0%
80.0%
75.0%
70.0%
65.0%
60.0%
0.3
0.8
1.5
2.3
3.0
Output current
0.3
0.8
1.5
2.3
3.0
Output current
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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