Low Power-Loss Voltage Regulators
Fig.21 Ripple Rejection vs. Input Ripple
Frequency
80
70
Ripple rejection RR (dB)
PQ05RG1/PQ05RG11 Series
Fig.22 Input-Output Reverse Current vs.
Input-Output Reverse Voltage
Input-output reverse current I
O
-i
(mA)
10
V
o-i
A I
o-i
V
IN
GND
5
PQ05RG1/11
PQ09RG1/11
V
O
PQ05RG1/11
PQ09RG1/11
60
PQ12RG1/11
50
40
T
j
=25˚C
30
V
IN
=7V(PQ05RG1/11)
20
10
0
0
0.5 1
5 10
50 100
Input ripple frequency f (kHz)
=11V(PQ09RG1/11)
=14V(PQ12RG1/11)
I
O
=0.5A
e
i
=0.5V
rms
(sine wave)
RR=201og(e
i
/e
0
)
PQ12RG1/11
0
0
5
10
15
20
25
Input-output reverse voltage V
O
-i
(V)
Fig.23 Output Peak Current vs. Junction
Temperature
2.0
Output peak current I
OP
(A)
V
IN
-V
O
=5V
1.5
2V
0.5V
1.0
I
OP
:Output current when output voltage is 95%
in comparison with the initial value
0
-20
0
25
50
75
100
Junction temperature T
j
(˚C)
125