Low Power-Loss Voltage Regulators
PQ30RV1/PQ30RV11/PQ30RV2/PQ30RV21
Fig.15 Ripple Rejection vs. Input Ripple
Fig.16 Ripple Rejection vs. Output Current
Frequency (PQ30RV2/PQ30RV21)
(PQ30RV1/PQ30RV11)
80
80
70
Cref=3.3µF
70
60
50
C
ref=3.3µF
60
No Cref
50
40
30
No Cref
20
Tj=25˚C
40
30
T
j
=25˚C
R1=390Ω,R2=2.7kΩ
10
R
1
=390Ω,R
2
=2.7kΩ
IO=0.5A,ei=0.5Vrms,
VIN=15V
V
IN=15V,e
i=0.5Vrms,f=120Hz
0
0
0.2
0.4 0.6
0.8
(A)
1.0
0.1
1
10
100
Output current I
O
Input ripple frequency f (kHz)
Fig.18 Output Peak Current vs. Dropout
Fig.17 Ripple Rejection vs. Output Current
Voltage (PQ30RV1/PQ30RV11)
(PQ30RV2/PQ30RV21)
2.0
80
Cref=3.3µF
70
60
50
No Cref
1.5
40
30
T
j
=25˚C
T
j
=25˚C
R
1
=390Ω,R
2
=2.7kΩ
R
1
=390Ω,R =2.7kΩ
2
V
IN=15V,e
i=0.5Vrms,f=120Hz
1.0
0
5
10
15
0
0.2
0.4 0.6
0.8
1.0
Dropout voltage V
i
-O (V)
Output current I (A)
O
Fig.20 Output Peak Current vs. Junction
Fig.19 Output Peak Current vs. Dropout
Voltage (PQ30RV2/PQ30RV21)
Temperature (PQ30RV1/PQ30RV11)
2.0
4
VIN-V
O
=5V
1.5
2V
0.5V
3
1.0
0.5
I
OP:Output current when output voltage
is 95% in comparison with the initial value
=390Ω,R =2.7kΩ
Tj=25˚C
R
1
=390Ω,R =2.7kΩ
2
R
1
2
-20
0
25 50
75
100 125
(˚C)
0
5
10
15
Junction temperature T
j
Dropout voltage Vi-O (V)
SHARP [ SHARP ELECTRIONIC COMPONENTS ]
