MB3889 Fujitsu Microelectronics, Inc., MB3889 Datasheet - Page 26

• Manufacturer Part Number: MB3889
• Description: 2-channel Dc/dc Converter Ic With Overcurrent Protection Symmetrical-phase Type
• Manufacturer: Fujitsu Microelectronics, Inc.

26
MB3889
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
Power Consumption vs. Input Voltage (Qg Parameter)
5
5
Power Consumption vs. Input Voltage (f
6
6
7
7
8
8
9
9
Input voltage Vin (V)
10
10
Input voltage Vin (V)
11
11
12
12
13
13
14
14
15
15
Qg
16
1
16
OSC
Qg
Qg
Qg
Qg
Qg
Ta
f
SW1
SW2
17
OSC
Ta
Qg
SW1
SW2
1
1
1
1
17
2
Parameter)
1
f
f
f
f
f
OSC
OSC
OSC
OSC
OSC
Qg
Qg
Qg
Qg
70 nC
18
25 C
25 C
290 kHz
Qg
OFF
OFF
18
OFF
OFF
2
2
2
2
2
500 kHz
300 kHz
200 kHz
100 kHz
10 kHz
50 nC
30 nC
20 nC
10 nC
19
20 nC
19
20
20