R1234D Datasheet, PDF (17/26 Pages) RICOH electronics devices division – PWM/VFM Step-Down DC/DC CONVERTER with Synchronous Rectifier

R1234D181B
VIN=5V, IOUT=200mA
ESR=400mΩ
0.05
0.04
0.03
0.02
0.01
0
-0.01
-0.02
-0.03
-0.04
-0.05
-0.06
0 1 2 3 4 5 6 7 8 9 10
Time t(µs)
4) Load Transient Response (VIN=5.0V, PWM)
R1234D181A
300
200
Output Current 0mA 100mA
100
0
0.1
Output Voltage
0
-0.1
0
40 80 120 160
Time t (µs)
R1234D181A
300
200
Output Current 0mA 200mA
100
0
0.1
Output Voltage
0
-0.1
-0.2
0
40 80 120 160
Time t (µs)
R1234D
R1234D181B
0.04
VIN=5V, IOUT=200mA
ESR=200mΩ
0.03
0.02
0.01
0
-0.01
-0.02
-0.03
-0.04
0 1 2 3 4 5 6 7 8 9 10
Time t(µs)
R1234D181B
300
200
Output Current 0mA 100mA
100
0
0.1
Output Voltage
0
-0.1
0
40 80 120 160
Time t (µs)
R1234D181B
300
200
Output Current 0mA 200mA ₁₀₀
0
0.1
Output Voltage
0
-0.1
-0.2
0
40 80 120 160
Time t (µs)
17