R1212D Datasheet, PDF (26/41 Pages) RICOH electronics devices division – STEP-UP DC/DC CONTOLLER

R1212D
13) Duty Cycle vs. DTC Voltage (0% to 100%) (Topt=25°C)
R1212D100A
R1212D100B
CEXT=1000pF
CEXT=1000pF
100
100
90
90
80
80
70
70
60
60
50
50
40
40
30
30
20
20
10
10
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
DTC Voltage VDTC(V)
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
DTC Voltage VDTC(V)
R1212D101A
CEXT=1000pF
100
90
80
70
60
50
40
30
20
10
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
DTC Voltage VDTC(V)
R1212D101C
CEXT=1000pF
100
90
80
70
60
50
40
30
20
10
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
DTC Voltage VDTC(V)
14) Duty Cycle vs. Temperature
R1212D100A
VDTC=0.75V, CEXT=1000pF
86
R1212D100B
VDTC=0.75V, CEXT=1000pF
86
83
83
80
80
77
77
74
-50 -25 0 25 50 75 100
Temperature Topt(°C)
74
-50 -25 0 25 50 75 100
Temperature Topt(°C)
26