MB3889 Datasheet, PDF (26/35 Pages) Fujitsu Component Limited. – 2-Channel DC/DC Converter IC with Overcurrent Protection Symmetrical-Phase Type

MB3889
Power Consumption vs. Input Voltage (Qg Parameter)
1.5
1.4
Qg1 = Qg2 = 70 nC
1.3
1.2
1.1
Qg1 = Qg2 = 50 nC
1.0
0.9
0.8
Qg1 = Qg2 = 30 nC
0.7
0.6
Qg1 = Qg2 = 20 nC
0.5
Qg1 = Qg2 = 10 nC
0.4
0.3
Ta = +25 °C
0.2
fOSC = 290 kHz
SW1 = OFF
0.1
SW2 = OFF
0.0
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Input voltage Vin (V)
Power Consumption vs. Input Voltage (fOSC Parameter)
1.2
1.1
1.0
0.9
fOSC = 500 kHz
0.8
0.7
fOSC = 300 kHz
0.6
0.5
fOSC = 200 kHz
0.4
fOSC = 100 kHz
0.3
fOSC = 10 kHz
0.2
Ta = +25 °C
Qg1 = Qg2 = 20 nC
0.1
SW1 = OFF
SW2 = OFF
0.0
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Input voltage Vin (V)
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