R1230D Datasheet, PDF (15/20 Pages) RICOH electronics devices division – PWM/VFM Step-down DC/DC Converter with Synchronous Rectifier

R1230D001C/D IOUT=100mA
0.9
0.85
0.8
0.75
0.7
-60
-40
-20
0
7) Oscillator Frequency vs. Temperature
1000
900
800
700
600
500
400
300
-60
-40
-20
0
8) Supply Current vs. Temperature
450
380
310
240
170
100
-60
-40
-20
500kHz
0
9) Soft-start time vs. Temperature
3
2.4
1.8
1.2
0.6
0
-60
-40
-20
0
20
40
Temperature Topt ^(°C)
20
40
Temperature Topt (°C)
800kHz
20
40
Temperature Topt ^(°C)
800kHz
500kHz
20
40
Temperature Topt (°C)
60
80
60
80
VIN=VOUT+1.5V
60
80
VIN=5.5V
R1230D181B VIN=3.3V
60
80
100
100
100
100
Rev. 1.12
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