PQ12RF11 SHARP [Sharp Electrionic Components], PQ12RF11 Datasheet - Page 6

• Manufacturer Part Number: PQ12RF11
• Description: 1A Output Low Power-Loss Voltage Regulators
• Manufacturer: SHARP [Sharp Electrionic Components]

Low Power-Loss Voltage Regulators
Fig.19 Ripple Rejection vs. Input Ripple Frequency
(PQ05RF1/PQ05RF11/PQ09RF1/PQ09RF11/PQ12RF1/PQ12RF11)
Fig.21 Ripple Rejection vs. Output Current
Typical Application
80
70
60
50
40
30
V
80
70
60
50
40
30
20
10
IN
0
0.1
0
f=120Hz,e
Cref=3.3 F(V Type)
V
V
V
I
V
V
V
O
IN
IN
IN
IN
IN
IN
+
=0.5A,e
= 7V(PQ05RF1 Series)
= 15V(PQ09RF1 Series)
= 18V(PQ12RF1 Series)
=7V(PQ05RF11/PQ05RF11)
=15V(PQ09RF11/PQ09RF11)
=18V(PQ12RF11/PQ12RF11)
Input ripple frequency f (kHz)
PQ05RF1/PQ05RF11 Series
PQ05RF1V/PQ09RF1V/PQ12RF1V
PQ05RF1/PQ05RF11
PQ09RF1/PQ09RF11
PQ12RF1/PQ12RF11
Output current I
1
i
=0.5V
i
=0.5V
1
4
Specific IC
CMOS or TTL
ON/OFF
signal
rms
rms
0.5
,
,
2
3
10
O
(A)
High or Open:Output ON
Low
V
C
+
O
O
100
1.0
:Output OFF
Fig.20 Ripple Rejection vs. Input Ripple Frequency
V
IN
(Note) R
+
80
70
60
50
40
30
20
10
0
V
0.1
O
V
PQ05RF1V : R
PQ09RF1V : R
PQ12RF1V : R
=V
1
' and R
ref
(PQ05RF1V/PQ09RF1V/PQ12RF1V)
I
Cref=3.3 F
V
V
V
1
O
ref
IN
IN
IN
=0.5A,e
PQ05RF1V Series
=1.26V,R
= 7V(PQ05RF1V)
= 15V(PQ09RF1V)
= 18V(PQ12RF1V)
Input ripple frequency f (kHz)
X 1+ ---------------------¡---------------------
2
' are built in a specific IC.
Specific IC
R
R
2
1
i
2
R
R
=0.5V
'XR
' = 390
'+R
2
2
2
' = 1.16k
' = 2.40k
' = 3.32k
2
1
1
'
'
2
2
2
4
3
rms
R
R
1
C
1
'XR
'+R
ref
,
V
+
O
1
PQ05RF1 Series
1
10
R
R
2
1
C
O
+
100