Fujitsu MB3891 Datasheet page 19

Efficiency vs. power supply voltage
(VSIMOUT Chargepump)
100
90
80
70
60
50
ILOAD 10 mA
40
30
20
ILOAD 1 mA
10
0
3.0 3.5 4.0
Power supply voltage V
Efficiency vs. load current
(VSIMOUT Chargepump)
100
Ta
90
VBAT
80
VSIM-ON
SIMPROG
70
60
VCC-VSIM 5.5 V
50
40
30
VCC-VSIM 3.1 V
20
10
0
0 5 10
Load current I
Output voltage rising waveforms
(VSIMOUT Chargepump)
10
5
0
Ta 25 C
VBAT
SIMPROG
VSIMOUT
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
t (ms)
Ta 25 C
VSIM-ON
"H"
SIMPROG
"L"
4.5 5.0 5.5
(V)
CC-VSIM
25 C
VCC-VSIM 3.6 V
"H"
"L"
VCC-VSIM 3.6 V
15 20
(mA)
LOAD
VSIM-ON
VSIMOUT
5
4
3
2
1
VCC-VSIM 3.6 V
"H"
0
510
Efficiency vs. power supply voltage
(VSIMOUT Chargepump)
100
90
80
70 ILOAD
60
50
40
ILOAD 1 mA
30
20
10
0
3.0 3.5 4.0
Power supply voltage V
Efficiency vs. load current
(VSIMOUT Chargepump)
100
90
VCC-VSIM 3.1 V
80
70
VCC-VSIM 3.6 V
60
50
VCC-VSIM
40
30
Ta
VBAT
20
VSIM-ON
10
SIMPROG
0
0 5
Load current I
Output voltage rising waveforms
(VSIMOUT Chargepump)
10
5
0
Ta 25 C
VBAT
SIMPROG
VSIMOUT
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
t (ms)
MB3891
Ta 25 C
VSIM-ON
"H"
SIMPROG
"H"
10 mA
4.5 5.0 5.5
(V)
CC-VSIM
5.5 V
25 C
VCC-VSIM 3.6 V
"H"
"H"
10 15 20
(mA)
LOAD
VSIM-ON
VSIMOUT
3
2
1
VCC-VSIM 3.6 V
"L"
0
510
(Continued)
19