DER-50
Set Top Box Design using TOP245R
April 20, 2005
9.3.2 Cross Regulation (18V Output)
23V Rail (A) 5V Rail (A) 3V3 Rail (A)
Min Load (X)
Max Load (M)
Load Combinations
23V - 5V - 3V3
XXX
0.2
0.6
0.55
1.8
0.23
1.3
Voltage (V) Voltage (V) Voltage (V)
23.24
24.3
5.01
5.2
3.26
3.2
XXM
XMX
MXX
XMM
MMX
24.01
22.73
24.88
23.16
23.76
22.73
24.88
-1.17
8.17
4.84
4.98
5.01
4.86
4.99
4.84
5.2
3.32
3.25
3.23
3.29
3.22
3.2
3.32
-3.03
0.61
MMM
Min (V)
Max (V)
% Below
% Above
-3.20
4.00
9.3.3 Cross Regulation (23V Output)
18V Rail (A) 5V Rail (A) 3V3 Rail (A)
Min Load (X)
Max Load (M)
Load Combinations
18V - 5V - 3V3
XXX
0.2
0.6
0.55
1.8
0.23
1.3
Voltage (V) Voltage (V) Voltage (V)
18.08
18.76
18.49
17.18
19.34
17.58
18.05
17.18
19.34
-4.56
7.44
4.98
5.22
4.8
4.95
5
4.86
4.98
4.8
5.22
-4.00
4.40
3.22
3.19
3.34
3.25
3.23
3.3
3.23
3.19
3.34
-3.33
1.21
XXM
XMX
MXX
XMM
MMX
MMM
Min (V)
Max (V)
% Below
% Above
Power Integrations
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