MB3891 Datasheet, PDF (15/29 Pages) Fujitsu Component Limited. – Power Management IC for GSM Mobile Phone

MB3891
Output voltage falling waveforms (LDO1)
4
Ta = +25°C
3
OUT1 = No load
CONT1 = “L”
2
CONT6 = OPEN
1
VBAT
0
2
1
OUT1
0
Output voltage falling waveforms (LDO1)
Ta = +25°C
4
VBAT = 1 µF
OUT1 = No load
CONT1 = “L”
2
VBAT ^{CONT6 = OPEN}
0
2
1
OUT1
0
0 50 100 150 200 250 300 350 400 450 500
t (ms)
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
t (s)
Output voltage rising waveforms (LDO1)
4
2
CONT1
0
OUT1
2
1
Ta = +25°C
0
VBAT = 3.6 V
OUT1 = 18 Ω
CONT6 = OPEN
Output voltage falling waveforms (LDO1)
10
5
CONT1
0
Ta = +25°C
VBAT = 3.6 V
OUT1 = No load ^2.0
CONT6 = OPEN _1.5
1.0
0.5
OUT1
0.0
0 20 40 60 80 100 120 140 160 180 200
t (µs)
Waveform at rapid change of output load
(LDO1)
0 20 40 60 80 100 120 140 160 180 200
t (ms)
[Measurement diagram]
2.0
OUT1
VBAT = 3.6 V
Ta = +25°C
1.5
VBAT = 3.6 V
1.0
CONT1 = “L”
CONT6 = OPEN
VREF = 1.225 V
(IC internal) _LDO1
OUT1 120 mA
0.5
2
0.0
1
VC
0
OUT1 = 0 A −120 mA
1 µF VC
4V
0V
0 10 20 30 40 50 60 70 80 90 100
t (µs)
(Continued)
15