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001-02 / 20040525 / ea33_br_iaaba.fm
• All specifications are subject to change without notice.
DC to DC Converters
Distributed Power Supplies for Systems, Non-insulation Type
POL Converters iAA/iBA Series
Power supply systems for infrastructure devices used in communi-
cation networks primarily are expected to provide multi output, low
output voltage, higher efficiencies, and lower noise levels.
To meet these demands, the lineup did non-insulation type POL
(Point of Load) converter.
FEATURES
• Input voltage range (DC.3 to5.5V)
• The output voltage is a fixed type of 3.3V and 2.5V, and change-
able types of 0.75 to 3.63V.
• Heat sink is not required.
• High efficiency: 93 to 95%
• Remote ON-OFF function
• Output voltage external variable function
• Various protective functions
PRODUCT IDENTIFICATION
(1) Type name
Point of Load-brick type
iAA: 33×13.5mm
iBA: 20×11mm
(2) Rated input voltage
(3) Output current
(4) Output voltage
(5) Option code
00: Standard（Positive on/off logic）
01: Negative on/off logic
PART NUMBERS AND RATINGS
iAA 05 015A 033V -
(1) (2) (3) (4) (5)
Output voltage(V) Current(A) Part No.
3.3 15 iAA05015A033V
2.5 15 iAA05015A025V
0.75 to 3.63 15 iAA05015A008V
0.75 to 3.63 8 iBA05008A008V
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001-02 / 20040525 / ea33_br_iaaba.fm
• All specifications are subject to change without notice.
SPECIFICATIONS AND STANDARDS
∗1 Verify the rated current (maximum output current) because this involves derating.
∗2 Load step from 50 to 100% of Io max. with at least one 0.1µF and 47µF ceramic capacitors across the output terminals.
∗3 Time to reaching to 90% by output voltage after input applies (t: Vin=0 to Vout=0.9Vo, nom. Tc=25°C, Io=Io, max.)
∗4 Time to reaching to 10 to 90% by output voltage (t: Co=0.1 to 0.9 Vo, nom.)
Part No. iAA05015A033V iAA05015A025V iAA05015A008V iBA05008A008V
Rated output voltage and current∗13.3V • 15A 2.5V • 15A 0.75 to 3.63V • 15A 0.75 to 3.63V • 8A
Maximum output power W 50 37.5 54.5 54.5
Input conditions
Input voltage Edc V 3 to 5.5[Continuation] 3 to 5.5[Continuation] 3 to 5.5[Continuation] 3 to 5.5[Continuation]
Transient input voltage V 6[100ms] 6[100ms] 6[100ms] 6[100ms]
Input current A 16max. 16max. 16max. 8max.
Efficiency % 89typ. 88typ. 86typ. 82typ.
Output characteristics
Output voltage Edc V 3.3 2.5 0.75 to 3.63 0.75 to 3.63
Voltage adjustment range % ±10 ±10 — —
Maximum output current A 15 15 15 8
Minimum output current A 0 0 0.02 0.02
Output voltage initial setting % ±2max. ±2max. ±2max. ±2max.
Overcurrent protection A 35typ. 35typ. 35typ. 17typ.
Voltage
stability
Line regulation mV 5max.(2typ.) 5max.(2typ.) 5max.(2typ.) 5max.(1typ.)
Load regulation mV 10max.(3typ.) 10max.(3typ.) 10max.(3typ.) 10max.(1typ.)
Temperature
regulation mV 60max.(15typ.) 60max.(15typ.) 60max.(15typ.) 60max.(15typ.)
Dynamic response∗2mV ±185typ. ±185typ. ±185typ. ±200typ.
Ripple noise Ep-p mV 75max. 75max. 75max. 75max.
Start up time∗3ms 14 14 14 14
Rise time∗4ms 10 10 10 10
Auxiliary functions
Overvoltage protection No
Overcurrent protection Yes(Automatic recovery)
Alarm output No
Over-temperature protection Yes(Automatic recovery)
Remote ON-OFF Yes
Remote sensing Yes(Only +)
Parallel operation Impossible
Output voltage adjustment Yes
Master slave operation No
Standards
Safety standards UL60950 and VDE0805 approved. EN60950 approved.
Constructions
External dimensions mm 8.0×13.5×33.2
［H×W×L］8.4×11.4×20.3
［H×W×L］
Weight g1212127
Mounting method Surface mounting method
Oscillating method Fixed frequency
Oscillating frequency kHz 350 400 350 350
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001-02 / 20040525 / ea33_br_iaaba.fm
• All specifications are subject to change without notice.
iAA TYPE iBA TYPE
SHAPES AND DIMENSIONS SHAPES AND DIMENSIONS
TERMINAL DESIGNATIONS AND FUNCTIONS TERMINAL DESIGNATIONS AND FUNCTIONS
33.02±0.38
13.46±0.38
Top view
Bottom view
2.54
8.00±0.50
7.87
12.70
17.53
22.35
29.90
10.92
0.51
0.76 1.52
0.64
2.29
2.54
8.38±0.38
4.83
8.89
12.95
17.53
8.89
0.51
0.38
0.25
20.3
11.4
Top view
Bottom view
Dimensions in mm
10.92
0.64
3.81
2.54
45
61
32
7.87
12.70
17.53
22.35
29.90
Top view
Dimensions in mm
4.57
8.64
12.70
17.53
8.64
0.25
3.30
2.54
4
51
32
Top view
1Vin
2GND
3Vout
4Trim
5Sense
6ON/OFF
1Vin
2GND
3Vout
4Trim
5Sense
6ON/OFF
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001-02 / 20040525 / ea33_br_iaaba.fm
• All specifications are subject to change without notice.
OUTPUT POWER-AMBIENT TEMPERATURE (DERATING)
MAXIMUM OUTPUT CURRENT vs. AMBIENT TEMPERATURE(Ta)
iAA05015A033V iAA05015A008V
Tc TEMPERATURE MEASUREMENT POINT AND WIND DIRECTION
iBA05008A008V Tc TEMPERATURE MEASUREMENT POINT
COMMON SPECIFICATIONS
Temperature and humidity
Temperature range Operating(°C) –40 to +117 [Temperature at the measurement point in the above drawing]
Storage(°C) –55 to +125[Ambient temperature of the power supply]
Humidity range Operating(%)RH 10 to 85[Without dewing]
Storage(%)RH
Vibration and shock
Vibration 5 to 50Hz Acceleration: 0.5G
50 to 500Hz Acceleration: 1.5G
Shock Acceleration 50G[Half sine wave, 3 directions]
Pulse duration 6ms
60 70 80 90 100 110 120 130
0
2
4
6
8
10
12
14
16
Output current(A)
Temperature(˚C)
NC
0.5m/s(100LFM)
1.0m/s(200LFM)
1.5m/s(300LFM)
2.0m/s(400LFM)
Q1 limit
70 1301201101009080
0
1
2
3
4
5
6
7
8
Output current(A)
Temperature(˚C)
NC
0.5m/s(100LFM)
1.0m/s(200LFM)
1.5m/s(300LFM)
Q2 limit
Worst orientation
Best orientation
Thermal measurement location
on critical component
50 13012011010090807060
0
2
4
6
8
10
12
14
16
Output current(A)
Temperature(˚C)
NC
0.5m/s(100LFM)
1.0m/s(200LFM)
2.0m/s(400LFM)
Q1 limit
Thermal measurement location
on critical component
