R1234D Datasheet, PDF (20/26 Pages) RICOH electronics devices division – PWM/VFM Step-Down DC/DC CONVERTER with Synchronous Rectifier

R1234D
R1234D181A
PWM, IOUT=200mA
4
2
CE Input Voltage
0
2
1
0
Output Voltage
0 0.4 0.8 1.2 1.6 2.0 2.4 2.8
Time t(µs)
R1234D181A
VFM, IOUT=0mA
4
2
CE Input Voltage
0
2
1
0
Output Voltage
0 0.4 0.8 1.2 1.6 2.0 2.4 2.8
Time t(µs)
R1234D181A
VFM, IOUT=50mA
4
2
CE Input Voltage
0
2
1
0
Output Voltage
0 0.4 0.8 1.2 1.6 2.0 2.4 2.8
Time t(µs)
R1234D181B
PWM, IOUT=200mA
4
2
CE Input Voltage
0
2
1
0
Output Voltage
0 0.4 0.8 1.2 1.6 2.0 2.4 2.8
Time t(µs)
R1234D181B
VFM, IOUT=0mA
4
2
CE Input Voltage
0
2
1
0
Output Voltage
0 0.4 0.8 1.2 1.6 2.0 2.4 2.8
Time t(µs)
R1234D181B
VFM, IOUT=50mA
4
2
CE Input Voltage
0
2
1
0
Output Voltage
0 0.4 0.8 1.2 1.6 2.0 2.4 2.8
Time t(µs)
20