MB3828 Fujitsu Microelectronics, Inc., MB3828 Datasheet - Page 19

• Manufacturer Part Number: MB3828
• Description: Pentium DC/DC Converter ic
• Manufacturer: Fujitsu Microelectronics, Inc.

DC/DC CONVERTER SWITCHING OPERATION WAVEFORMS
OUT1 (V)
60
50
40
30
20
10
10
0
OUT2 (V)
30
25
20
15
10
5
0
5
<V
VS (V)
0.5
0.5
CC
1
0
1
= 5 V, VB = 5 V, Vin = 15V>
OUT1 (V)
60
50
40
30
20
10
10
0
0
Synchronous rectifier length: 250 ns (typ)
OUT1 tf: 60 ns (typ)
OUT2 tr: 130 ns (typ)
10 V
5 V
OUT2 (V)
30
25
20
15
10
0.2
5
0
5
OUT1
20
15
10
VS (V)
5
0
5
0.4
500 mV
0
0.6
10 V
5 V
2
VS
100 ns
OUT2
0.8
OUT1
VS
4
expansion
5 V
t ( s)
1.0
OUT2
0
6
10 V
5 V
0.2
1 s
Synchronous rectifier length: 200 ns (typ)
OUT1 tr: 130 ns (typ)
OUT2 tf: 100 ns (typ)
8
OUT2
0.4
t ( s)
10
500 mV
VD4–VD0 = 00101 (1.8 V)
load: 2 A
fosc = 200 kHz setting
0.6
VS
OUT1
MB3828
100 ns
0.8
t ( s)
1.0
19