Fujitsu ASSP Product
12/14
Power Management
MB39C026 Evaluation Board
MB39C026G CH2 Test Condition:
EN2=VIN; EN1=0V
VO2=3.3V; IO2=100mA; Cin=0
(7) Power Supply Rejection Ratio
MB39C026J CH2 Test Condition:
EN2=VIN; EN1=0V
VO2=2.85V; IO2=100mA; Cin=0
MB39C026L CH2 Test Condition:
EN2=VIN; EN1=0V
VO2=1.8V; IO2=100mA; Cin=0
MB39C026N CH2 Test Condition:
EN2=VIN; EN1=0V
VO2=1.2V; IO2=100mA; Cin=0
Power Supply Rejection Ratio IO2=100mA
-80
-70
-60
-50
-40
-30
-20
-10
0
10
100
1000
10000
100000
1000000
Freq (Hz)
P
S
R
R
(
dB
)
VIN=3.7V
VIN=4.3V
Power Supply Rejection Ratio IO2=100mA
-80
-70
-60
-50
-40
-30
-20
-10
0
10
100
1000
10000
100000
1000000
Freq (Hz)
P
S
R
R
(d
B
)
Vin=3.7V
Vin=4.3V
Power Supply Rejection Ratio IO2=100mA
-80
-70
-60
-50
-40
-30
-20
-10
0
10
100
1000
10000
100000
1000000
Freq (Hz)
P
S
R
R
(d
B
)
VIN=3.7V
VIN=4.3V
Power Supply Rejection Ratio IO2=100mA
-80
-70
-60
-50
-40
-30
-20
-10
0
10
100
1000
10000
100000
1000000
Freq (Hz)
P
S
R
R
(d
B
)
VIN=3.7V
VIN=4.3V
