R1230D Datasheet, PDF (19/20 Pages) RICOH electronics devices division – PWM/VFM Step-down DC/DC Converter with Synchronous Rectifier

IOUT=200mA
-0.0002 -0.0001
0
0.0001
0.0002 0.0003 0.0004
Time [sec]
IOUT=2mA
0.0005 0.0006
0.0007
0.6
0.5
0.4
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
0.0008
R1230D181B VIN=5.0V PWM
18) Turn-on Waveform
5
4
3
2
1
0
-1
-0.0004
0
0.0004
0.0008
PWM Mode IOUT=0A
4
2
CE
0
-2
-4
VOUT
-6
-8
0.0012
0.0016
Time [sec]
-10
0.002
0.0024
0.0028
R1230D181B VIN=5.0V
PWM Mode　IOUT=50mA
5
4
4
2
3
CE
0
-2
2
VOUT
-4
1
-6
0
-8
-1
-10
-0.0004
0
0.0004
0.0008
0.0012
0.0016
0.002
0.0024
0.0028
Time [sec]
R1230D181B VIN=5.0V
PWM Mode　IOUT=200mA
5
4
4
2
3
CE
0
-2
2
-4
1
VOUT
-6
0
-8
-1
-10
-0.0004
0
0.0004
0.0008
0.0012
0.0016
0.002
0.0024
0.0028
Time [sec]
R1230D181B VIN=5.0V
Rev. 1.12
- 19 -