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R-533.3DA Datasheet(PDF) 4 Page - Recom International Power

Part # R-533.3DA
Description  2, 3, 4, 5 AMP SIP12 Vertical & Horizontal
PDF  6 Pages
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Manufacturer  RECOM [Recom International Power]
Direct Link  http://www.recom-international.com
Logo RECOM - Recom International Power

R-533.3DA Datasheet(HTML) 4 Page - Recom International Power

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R-5xxxPA_DA
Series
Output Current vs Input Voltage
INNOLINE
DC/DC-Converter
90
60
20
40
1.4
1
0.5
Internal Power Dissipation (W)
0
80
85
How to calculate the max output current
The internal power dissipation(PD)follows the equation:
PD = Io × Vo × (1-
η)
Io = PD / Vo × (1-
η)
Where
PD = Internal power dissipation
Io = Output current
Vo = Output voltage
η = Efficiency
Example: R-545.0P , at Vin = 18Vdc , Vo = 5Vdc ,
η=93% (see "Selection Guide" table)
(a) When Ta = 60°C , PD = 1.4 Watt (see adjacent diagram)
Io = 1.4(W) / 5(V) × (1-0.93) = 4(A)
(b) When Ta = 85°C , PD = 1 Watt (see adjacent diagram)
Io = 1(W) / 5(V) × (1-0.93) = 2.857(A)
(c) At Vin = 12Vdc efficiency = 94% (see "Selection Guide" table)
When Ta = 85°C , PD = 1 Watt (see adjacent diagram)
Io = 1(W) / 5(V) × (1-0.94) =3.33(A)
Characteristics
1
1.8
0
5.0
2.3
3.3
1.2
0.5
Output Voltage (V)
1
1.8
0
5.0
2.3
3.3
1.2
0.5
Output Voltage (V)
R-53xx / R-54xx
Output Voltage Line Regulation VS Vout
R-52xx / R-55xx
Output Voltage Line Regulation VS Vout
2.0
5
0
20
10
15
1.5
Input Voltage (V)
1.0
0.5
1.2V
1.8V
2.5V
3.3V
5.0V
2.0
5
0
20
10
15
1.5
Input Voltage (V)
1.0
0.5
1.2V
1.8V
2.5V
3.3V
5.0V
R-53xx / R-54xx
Intput Voltage Load Regulation VS Vin
R-52xx / R-55xx
Intput Voltage Load Regulation VS Vin
27-March-2007
www.recom-international.com
158



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