1.5 Vout, 120 W OPERATING SPECIFICATIONS - (e.g. DC048B015T012FP)
Parameter
Efficiency
Ripple and noise
Output OVP setpoint
Dissipation, standby
Load regulation
Output capacitance
Load current
Current limit (peak)
Short circuit current (avg)
Min
83
1.75
5.5
±0.6
0
86.4
0
Typ
87
100
Max
125
1.86
7.6
±1.5
48,000
80
104
40
Unit
%
mV
Volts
Watts
%
µF
Amps
Amps
Amps
Notes
Nominal input; full load; 25°C
p-p; Nominal input; full load; 20 MHz bandwith
25°C; recycle input voltage to restart (1 minute off)
No load
No load to full load; nominal input, deviation from setpoint
External
Shut down, may require PC enable to initiate restart
Shut down, may require PC enable to initiate restart
92
1.0
Efficiency vs. Output Current
95
90
85
Efficiency (%)
80
75
70
65
60
55
50
0
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80
Vin
36 V
48 V
75 V
Output Current (A)
Figure 3-1
– Efficiency vs. load
Figure 3-4
– Transient response 100 – 50%, 3 x 4.7 µF ceramic bypass
capacitance
Power Dissipation vs. Output Current
20
Power Dissipation (W)
18
16
14
12
10
8
6
4
0
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80
Vin
36 V
48 V
75 V
Output Current (A)
Figure 3-2
– Power dissipation vs. load
Figure 3-5
– Transient response 50 – 100%, 3 x 4.7 µF ceramic bypass
capacitance
Ripple vs. Output Current
90
Output Ripple (mVpk-pk)
80
70
60
50
40
30
20
10
0
0
20
40
60
80
Vin
NL
Output Current (A)
Figure 3-3
– Output ripple vs. load with no external bypass capacitance
Figure 3-6
– Output voltage ripple at nominal line and full load with no
external bypass capacitance.
Rev. 1.0
Page 6 of 21
VI Brick / 48V Input DC-DC Converter Modules
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