R1232D Datasheet, PDF (15/24 Pages) RICOH electronics devices division – PWM STEP-DOWN DC/DC CONVERTER WITH SYNCHRONOUS RECTIFIER

100
90
80
70
60
50
40
30
20
10
0
1
VIN=3.3V, 5.0V
(VIN=5.0V)
(VIN=3.3V)
10
100
Output Current IOUT(mA)
1000
3) Output Waveform
0.04
R1232D121A
VIN=5.0V, IOUT=600mA
0.03
0.02
0.01
0
-0.01
-0.02
-0.03
-0.04
-3 -2 -1 0 1 2 3
Time t(ns)
0.06
R1232D121B
VIN=5.0V, IOUT=600mA
0.04
0.02
0
-0.02
-0.04
-0.06
-1.5 -1.0 -0.5 0 0.5 1.0 1.5
Time t(ns)
100
90
80
70
60
50
40
30
20
10
0
1
R1232D
VIN=5.0V
10
100
Output Current IOUT(mA)
1000
0.04
0.03
0.02
0.01
0
-0.01
-0.02
-0.03
-0.04
-3
R1232D331A
VIN=5.0V, IOUT=600mA
-2 -1 0 1 2 3
Time t(ns)
0.04
0.03
0.02
0.01
0
-0.01
-0.02
-0.03
-0.04
-1.5
R1232D331B
VIN=5.0V, IOUT=600mA
-1.0 -0.5 0 0.5 1.0 1.5
Time t(ns)
15