MB39A119 Datasheet, PDF (50/53 Pages) Fujitsu Component Limited. – DC/DC Converter IC of Synchronous Rectification for charging Li-ion battery

MB39A119
■ LOOP CHARACTERISTICS
<Voltage mode>
Gain, phase vs. Frequency
50
45
40
35
30
25
20
15
10
5
0
5
10
15
20
25
VIN = 19 V
30
Setting VO = 16.8 V
35
VO = 16.8 V (C.V mode)
40
RL = 10
45
50
1.E+01 1.E+02 1.E+03
1.E+04
Frequency (Hz)
1.E+05
200
180
160
140
120
100
80
60
40
20
0
20
40
60
80
100
120
140
160
180
200
1.E+06
<Current mode>
Gain, phase vs. Frequency
50
45
40
35
30
25
20
15
10
5
0
5
10
15
20
25
VIN = 16 V
30
Setting VO = 8.4 V
35
VO = 6 V (C.C mode)
40
RL = 1.5
45
50
1.E+01 1.E+02 1.E+03
1.E+04
Frequency (Hz)
1.E+05
200
180
160
140
120
100
80
60
40
20
0
20
40
60
80
100
120
140
160
180
200
1.E+06
50