R1232D Datasheet, PDF (16/24 Pages) RICOH electronics devices division – PWM STEP-DOWN DC/DC CONVERTER WITH SYNCHRONOUS RECTIFIER

R1232D
4) Load Transient Response
R1232D121A
VIN=5.0V
0.8
0.5
0.6
0.4
0.4
0.3
Output Current 10mA→600mA
0.2
0.2
0
0.1
0
-0.1
Output Voltage _-0.2
-0.3
-50
0
50 100 150 200
Time t (µs)
0.8
0.6
0.4
0.2
0
-50
R1232D121B
VIN=5.0V
0.5
0.4
0.3
Output Current 10mA→600mA
0.2
0.1
0
-0.1
Output Voltage
-0.2
-0.3
0
50 100 150 200
Time t (µs)
5) Output Voltage vs. Input Voltage
R1232D121A
1.22
IOUT=600mA
1.21
1.20
1.19
1.18
2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
Input Voltage VIN(V)
6) Oscillator Frequency vs. Input Voltage
R1232D121A
16
0.8
0.6
0.4
0.2
0
-50
R1232D121A
VIN=5.0V
0.8
0.7
0.6
Output Current 600mA→10mA _0.5
0.4
0.3
Output Voltage ^0.2
0.1
0
-0.1
0
50 100 150 200
Time t (µs)
0.8
0.6
0.4
0.2
0
-50
R1232D121B
VIN=5.0V
0.8
0.7
0.6
Output Current 600mA→10mA _0.5
0.4
0.3
Output Voltage ^0.2
0.1
0
-0.1
0
50 100 150 200
Time t (µs)
R1232D331A
3.32
IOUT=600mA
3.31
3.30
3.29
3.28
3.0 3.5 4.0 4.5 5.0 5.5 6.0
Input Voltage VIN(V)
R1232D121B