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DC to DC Converters
Distributed Power Supplies for Systems, Insulation Type
Quarter Brick Type iQA Series
Power supply systems for infrastructure devices used in communi-
cation networks primarily use brick-type DC to DC converters.
As the voltage used for LSIs continues to drop, power supplies are
expected to provide lower output, higher efficiencies, and lower
noise levels.
To meet these demands, we have developed quarter brick types
that are smaller in size, produce low output voltage, and provide
two outputs.
FEATURES
• Wide input voltage range (DC.36 to 75V)
•
•
•
•
•
•
•
•
Low output voltage products with two outputs are available.
High efficiency: 87.5%(5.0 and 3.3V outputs)
Heat sink is not required.
Remote ON-OFF function
Output voltage external variable function
Various protective functions
Each output can be controlled independently.
Flexible current distribution between the two outputs
PART NUMBERS AND RATINGS
-
(6)
Output voltage(V)
2.5/1.8
3.3/1.8
3.3/2.5
2.5/1.8
3.3/2.5
5.0/3.3
Current(A)
24
24
24
15
15
15
Part No.
iQA48024A025M
iQA48024A033M–1
iQA48024A033M–0
iQA48015A025M
iQA48015A033M
iQA48015A050M
PRODUCT IDENTIFICATION
iQA
(1)
48 015A
(2) (3)
050
(4)
M
(5)
(1) Type name
iQA: Quarter brick type
(2) Rated input voltage
(3) Output current
(4) Output voltage(The higher of the voltages of the two outputs)
(5) Multi-output
(6) Option code
001: Standard(Negative on/off logic, Pin length: 3.68mm,
Variable output: Variable independently)
000: Positive on/off logic, Pin length: 3.68mm,
Variable output: Variable independently
002: Positive on/off logic, Pin length: 3.68mm,
Variable output: Both outputs are variable simultaneously.
003: Negative on/off logic, Pin length: 3.68mm,
Variable output: Both outputs are variable simultaneously.
004: Positive on/off logic, Pin length: 2.79mm,
Variable output: Variable independently
005: Negative on/off logic, Pin length: 2.79mm,
Variable output: Variable independently
006: Positive on/off logic, Pin length: 2.79mm,
Variable output: Both outputs are variable simultaneously.
007: Negative on/off logic, Pin length: 2.79mm,
Variable output: Both outputs are variable simultaneously.
• The first number in the three digit option code for
iQA48024A033M-1 is “1”.
• All specifications are subject to change without notice.
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SPECIFICATIONS AND STANDARDS
Part No.
Rated output voltage and current
∗1
Maximum output power
Input conditions
Input voltage Edc
Input current
Inrush transient
∗2
Efficiency
Output characteristics
Output voltage 1 Edc
Output voltage 2 Edc
Voltage adjustment range
Maximum output current
(Total value)
Maximum output current
(Each output)
Minimum output current
Output voltage initial setting
Overvoltage
Independent protection(V
1
)
trim
Overvoltage
protection(V
2
)
Overvoltage
protection(V
1
)
Tracking trim
Overvoltage
protection(V
2
)
Overcurrent protection
Line regulation
Load regulation
Voltage
Temperature
stability
regulation
Dynamic response
Ripple noise Ep-p
Start up time
Auxiliary functions
Overvoltage protection
Overcurrent protection
Alarm output
Over-temperature protection
Remote ON-OFF
Remote sensing
Parallel operation
Output voltage adjustment
Master slave operation
Standards
Safety standards
Constructions
External dimensions
Weight
Mounting method
Oscillating method
Oscillating frequency
∗1
∗2
W
V
A
A
2
S
%
V
V
%
A
A
A
%
V
V
V
V
A
mV
mV
mV
mV
mV
ms
iQA48015A050M
5.0/3.3V • 15A
75
iQA48015A033M
3.3/2.5V • 15A
50
iQA48015A025M
2.5/1.8V • 15A
37.5
iQA48024A033M–0 iQA48024A033M–1 iQA48024A025M
3.3/2.5V • 24A
3.3/1.8V • 24A
2.5/1.8V • 24A
72
67.5
53.7
36 to 75[Continuation]/100[Transient 100ms]
3.0max.
3.0max.
3.0max.
0.1
0.1
0.1
87.5typ.
85typ.
85typ.
5
3.3
–10 to +10
15
15
0
±1.6max.
5.6 to 6.7
5.0typ.
5.6 to 7.5
3.7 to 5.2
17typ.
5max.(2typ.)
15max.(5typ.)
75max.(10typ.)
3.3
2.5
–10 to +10
15
15
0
±1.6max.
—
—
3.7 to 5.0
2.9 to 4.0
19typ.
5max.(2typ.)
15max.(5typ.)
75max.(10typ.)
2.5
1.8
–10 to +10
15
15
0
±3max.
—
—
—
—
17typ.
5max.(2typ.)
15max.(5typ.)
75max.(10typ.)
3.0max.
0.1
85typ.
3.3
2.5
–10 to +10
24
15
0
±1.6max.
3.7 to 4.4
3.3typ.
3.7 to 5.0
2.9 to 4.0
29typ.
5max.(2typ.)
15max.(5typ.)
75max.(10typ.)
80max.
62typ.
3.0max.
0.1
85typ.
3.3
1.8
–10 to +10
24
15
0
±1.6max.
—
—
3.7 to 5.0
2.9 to 4.0
29typ.
5max.(2typ.)
15max.(5typ.)
75max.(10typ.)
80max.
62typ.
3.0max.
0.1
83typ.
2.5
1.8
–10 to +10
24
15
0
±3max.
—
—
—
—
29typ.
5max.(2typ.)
15max.(5typ.)
75max.(10typ.)
80max.
62typ.
±100typ.[50 to 75%, sudden load change]
80max.
80max.
80max.
62typ.
62typ.
62typ.
Yes(Automatic recovery)
Yes(Automatic recovery)
No
Yes(Automatic recovery)
Yes
No
Impossible
Yes
No
UL60950 and VDE0805 approved. EN60950 approved.
mm
g
12.7×38.1×58.4[H×W×L]
39typ.
Mounted from the terminal side (soldered).
Fixed frequency
280typ.
280typ.
280typ.
kHz
280typ.
280typ.
280typ.
Verify the rated current (maximum output current) because this involves derating.
Applies only to the primary surge. The power supply does not have an input fuse, so make sure to install an external fuse when using this product.
• All specifications are subject to change without notice.
002-02 / 20040524 / ea33_br_iqa.fm
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OUTPUT POWER-AMBIENT TEMPERATURE (DERATING)
MAXIMUM OUTPUT CURRENT(OUTPUT1) vs.
AMBIENT TEMPERATURE(Ta)
iQA48015A050M
Output 2 represents the output when no load is present.
Wind direction: From pin 3 to pin 1, Vin=48V
16
14
12
Io
1
(A), Io
2
=0A
Io
2
(A), Io
1
=0A
10
8
6
4
2
0
20
NC(60LFM)
100LFM
200LFM
300LFM
400LFM
600LFM
30
40
50
60
70
80
Ambient temperature (˚C)
MAXIMUM OUTPUT CURRENT(OUTPUT2) vs.
AMBIENT TEMPERATURE(Ta)
iQA48015A050M
Output 1 represents the output when no load is present.
Wind direction: From pin 3 to pin 1, Vin=48V
16
14
12
10
8
6
4
2
NC(60LFM)
100LFM
200LFM
300LFM
400LFM
600LFM
30
40
50
60
70
80
Ambient temperature (˚C)
90
100
0
20
90
100
MAXIMUM OUTPUT CURRENT(TOTAL VALUE) vs.
AMBIENT TEMPERATURE(Ta)
iQA48015A050M
Output 1 and 2 represent the outputs when a balanced load is present.
Wind direction: From pin 3 to pin 1, Vin=48V
16
14
Io=Io
1
+Io
2
(A), Io
1
=Io
2
12
10
8
6
4
2
0
20
NC(60LFM)
100LFM
200LFM
300LFM
400LFM
600LFM
30
40
50
60
70
80
Ambient temperature (˚C)
90
100
COMMON SPECIFICATIONS
Temperature and humidity
Operating(°C)
Temperature range
Storage(°C)
Operating(%)RH
Humidity range
Storage(%)RH
Vibration and shock
5 to 10Hz
Vibration
10 to 200Hz
Acceleration
Shock
Pulse duration
Withstand voltage
Withstand voltage
Input terminal to output terminal
–40 to +110[Temperature base plate]
–55 to +125[Ambient temperature of the power supply]
10 to 85[Without dewing]
Acceleration: 0.5G
Acceleration: 1.5G
50G[Half sine wave, 3 directions]
6ms
DC.1.5kV[1min, Normal temperature, normal humidity, cutout current 10mA]
• All specifications are subject to change without notice.
002-02 / 20040524 / ea33_br_iqa.fm
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