Switching Waveform - Fujitsu MB39C026 Manual

Fujitsu ASSP Product
Power Management
(3) DC/DC Line Regulation
CH1 Test Condition:
EN1=VIN; EN2=0V
VO1=1.2V; C1=C2=4.7uF
CH1 Line Regulation
1.3
1.28
1.26
1.24
1.22
1.2
1.18
1.16
1.14
1.12
1.1
3.2 3.7

(4) Switching Waveform

CH1 Test Condition:
EN1=EN2=VIN;
VO1=1.8V; IO1=250mA; C1=C2=4.7uF
VO2=3.3V; IO2=150mA; C4=C5=1uF
VLx
5V/div
ILx
100mA/div
VO1
20mV/div
VO2
20mV/div
MB39C026 Evaluation Board
IO1=0mA
IO1=300mA
IO1=600mA
4.2 4.7 5.2
VIN Input Voltage (V)
500ns/div
CH1 Test Condition:
EN1=VIN; EN2=0V
VO1=1.8V; C1=C2=4.7uF
CH1 Line Regulation
1.9
1.88
1.86
1.84
1.82
1.8
1.78
1.76
1.74
1.72
1.7
3.2 3.7
VIN Input Voltage (V)
CH1 Test Condition:
EN1=EN2=VIN;
VO1=1.8V; IO1=20mA; C1=C2=4.7uF
VO2=3.3V; IO2=150mA; C4=C5=1uF
VLx
5V/div
ILx
100mA/div
VO1
20mV/div
VO2
20mV/div
9/14
IO1=0mA
IO1=300mA
IO1=600mA
4.2 4.7 5.2
5us/div