MB3875 Datasheet, PDF (24/27 Pages) Fujitsu Component Limited. – DC/DC Converter IC for Charging

MB3875/MB3877
(Continued)
Soft start operating waveforms
Vin = 19 V
Load : BATT = 50 Ω
− INE1 = 0 V
BATT (V)
CTL (V) ²⁰
20 10
15 0
10
5
0
10 V
5V
20 ms
0 40 80 120 160 200
t (ms)
DC/DC converter switching waveforms
Vin = 19 V
FOSC = 287.4 kHz
Load : BATT = 2 A
5V
1 µs
OUT (V)
20
15
10
5
0
−5
0
2
4
6
8 10
t (µs)
24