MB3782 Fujitsu Media Devices, MB3782 Datasheet - Page 21

• Manufacturer Part Number: MB3782
• Description: Switching Regulator Controller
• Manufacturer: Fujitsu Media Devices

DataSheet4U.com
www.DataSheet4U.com
DataSheet
4
U
.com
– 20
– 40
– 20
– 40
40
20
40
20
0
0
10
10
100
100
Frequenncy vs.gain and phase
Frequenncy vs.gain and phase
Frequenncy f (Hz)
Frequenncy f (Hz)
1 k
1 k
Test Circuit
IN
10 k
10 k
A
10 F
V
4.7 k
4.7 k
C
– +
A
NF
C
V
100 k
100 k
= 470 pF
NF
V
= open
REF
4.7 k
4.7 k
1 M
DataSheet4U.com
1 M
V
180
90
0
– 90
– 180
180
90
0
– 90
– 180
REF
4
5
–
+
Error amp
– 20
– 40
– 20
– 40
240 k
40
20
40
20
C
0
0
NF
10
10
6
100
100
Frequenncy vs.gain and phase
Frequenncy vs.gain and phase
A
V
Frequenncy f (Hz)
Frequenncy f (Hz)
1 k
1 k
OUT
A
V
10 k
10 k
C
C
NF
NF
100 k
100 k
= 0.047 pF
= 4700 pF
MB3782
(Continued)
1 M
1 M
180
90
0
– 90
– 180
180
90
0
– 90
– 180
21