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Low Power-Loss Voltage Regulators
PQ05RF2/PQ05RF21/PQ05RF2V Series
1
2
-
+
4
3
Reference
voltage
generation
circuit
Output
ON/OFF
control circuit
Overheat
protection
circuit
PQ05RF2
series/
PQ05RF21
series
1
2
4
-
+
3
Reference
voltage
generation
circuit
*ASO
protection
circuit
Overheat
protection
circuit
PQ05RF2V
series
*ASO:Area of Safety
Operation
*ASO
protection
circuit
PQ05RF2/21/2V Series
s
Outline Dimensions
(Unit : mm)
2A Output, Low Power-Loss Voltage Regulators
s
Features
Low power-loss (Dropout voltage : MAX. 0.5V)
Compact resin full-mold package.
Built-in ON/OFF control terminal (
PQ05RF2/PQ05RF21
series)
Built-in output voltage minute adjustment terminal (ripple
rejection is improved) (
PQ05RF2V
series)
PQ05RF2
PQ05RF21
PQ05RF2V
Output voltage
precision:5%
Output voltage
precision:2.5%
Minute adjustment
(Output voltage
adjustment range:10%)
s
Model Line-ups
5V Output
PQ09RF2
PQ09RF21
PQ09RF2V
9V Output
PQ12RF2
PQ12RF21
PQ12RF2V
12V Output
PQ15RF2
PQ15RF21
PQ15RF2V
15V Output
Output voltage
s
Applications
Series power supply for various electronic equipment such as VCRs,
electronic munic instruments
2
3
1
4
PQ05RF2
Internal connection diagram
Specific IC
PQ05RF2
/
21
series
1 DC input (V
IN
)
2 DC output (V
O
)
3 GND
4 ON/OFF control
terminal (V
C
)
PQ05RF2V
series
1 DC input (V
IN
)
2 DC output (V
O
)
3 GND
4 Output voltage
minute
adjustment
terminal (V
ADJ
)
29.1MAX
10.2MAX
7.40.2
3.60.2
3.20.1
+0.3
-0
4-1.4
+0.2
-0.1
4-0.6
13.5MIN
3-(2.54)
4.50.2
2.80.2
15.60.5
15.60.5
4.8MAX
(1.5)
(0.5)
q
1
q
2
q
3
q
4
s
Equivalent Circuit Diagram
Please refer to the chapter" Handling Precautions ".
Low Power-Loss Voltage Regulators
PQ05RF2/PQ05RF21/PQ05RF2V Series
Parameter
Symbol
Rating
Unit
V
IN
V
C
I
O
P
D1
P
D2
T
j
T
opr
T
stg
T
sol
35
35
2
1.5
18
150
-20 to +80
-40 to +150
260 (For 10s)
V
V
A
W
W
C
C
C
C
Input voltage
ON/OFF control terminal voltage
Output current
Power dissipation (No heat sink)
Power dissipation (With infinite heat sink)
Junction temperature
Operating temperature
Storage temperature
Soldering temperature
*1
*1
*2
*1
All are open except GND and applicable terminals.
*2
Overheat protection may operate at 125=<T
j
=<150C.
s
Absolute Maximum Ratings
(T
a
=25C)
PQ05RF2 series
PQ05RF21 series
Parameter
Symbol
Conditions
V
O
R
eg
L
R
eg
I
TcVo
RR
V
i
-o
V
C
(
ON
)
I
C
(
ON
)
V
C
(
OFF
)
I
C
(
OFF
)
I
q
V
O
(
ADJ
)
Output voltage
Load regulation
Line regulation
Temperature coefficient of output voltage
Ripple rejection
Dropout voltage
ON-state voltage for control
ON-state current for current
OFF-state voltage for control
OFF-state current for control
Quiescent current
Output voltage
minute adjustment
range
Unit
MAX.
TYP.
MIN.
4.75
8.55
11.4
14.25
4.88
8.78
11.7
14.63
-
-
-
45
55
-
2.0
*6
-
-
-
-
4.5
8.1
10.8
13.5
-
I
O
=5mA to 2A
*4
T
j
=0 to 125C
I
O
=0.5A Refer to Fig.2
*5
, I
O
=2A
-
V
C
=2.7V
-
V
C
=0.4V
I
O
=0
-
5.0
9.0
12.0
15.0
5.0
9.0
12.0
15.0
0.5
0.5
0.02
55
-
-
-
-
-
-
-
5.0
9.0
12.0
15.0
5.25
9.45
12.6
15.75
5.12
9.22
12.3
15.37
2.0
2.5
-
-
-
0.5
-
20
0.8
-0.4
10
5.5
9.9
13.2
16.5
V
%
%
%/C
dB
dB
V
V
A
V
mA
mA
V
s
Electrical Characteristics
*3
PQ05RF2 Series
:V
IN
=7V,
PQ09RF2 Series
:V
IN
=15V,
PQ12RF2 Series
:V
IN
=18V,
PQ15RF2 Series
:V
IN
=23V
*4
PQ05RF2/PQ05RF21/PQ05RF2V
:V
IN
=6 to 12V
PQ09RF2/PQ09RF21/PQ09RF2V
:V
IN
=10 to 25V
PQ12RF2/PQ12RF21/PQ12RF2V
:V
IN
=13 to 29V
PQ15RF2/PQ15RF21/PQ15RF2V
:V
IN
=16 to 32V
*5
Input voltage shall be the value when output voltage is 95% in comparison with the initial value.
*6
In case of opening control terminal 4, output voltage turns on.(
PQ05RF2/PQ05RF21 Series
)
(Unless otherwise specified, condition shall be Io=1A, T
a
=25C,
*3
)
PQ05RF2/PQ05RF2V
PQ09RF2/PQ09RF2V
PQ12RF2/PQ12RF2V
PQ15RF2/PQ15RF2V
PQ05RF21
PQ09RF21
PQ12RF21
PQ15RF21
PQ05RF2/PQ05RF21Series
PQ05RF2VSeries
PQ05RF2/PQ05RF21Series
PQ05RF2/PQ05RF21Series
PQ05RF2/PQ05RF21Series
PQ05RF2/PQ05RF21Series
PQ05RF2V
PQ09RF2V
PQ12RF2V
PQ15RF2V
Low Power-Loss Voltage Regulators
PQ05RF2/PQ05RF21/PQ05RF2V Series
Fig.1 Test Circuit
Fig.5 Output Voltage Minute Adjustment
Characteristics (PQ05RF2V)
Fig.6 Output Voltage Minute Adjustment
Characteristics (PQ09RF2V)
Fig.2 Test Circuit of Ripple Rejection
10
2
10
3
10
4
4.5
5.0
5.5
6.0
R
1
=390
R
1
=1k
R
1
=
3.9k
Output voltage V
O
(V)
R
2
(
)
10
3
10
4
10
5
8.1
9.0
9.9
R
1
=390
R
1
=1k
R
1
=3.9k
Output voltage V
O
(V)
R
2
(
)
q
3
q
2
q
1
q
4
A
V
A
A
V
IN
I
q
I
C
I
O
V
O
V
C
R
L
0.33
F
47
F
+
q
3
q
2
q
1
q
4
A
V
A
V
IN
I
q
I
O
V
O
R
L
0.33
F
3.3
F
PQ05RF2
/
PQ05RF21
series
PQ05RF2V
series
47
F
+
+
3.3
F
PQ05RF2
/
PQ05RF21
series
PQ05RF2V
series
q
3
q
2
q
1
q
4
V
e
i
V
IN
e
o
R
L
0.33
F
47
F
+
+
~
~
q
3
q
2
q
1
q
4
V
e
i
V
IN
e
o
R
L
0.33
F
47
F
+
+
~
~
+
f=120Hz (sine wave)
e
i
=0.5V
rms
RR=20 log (e
i
/e
o
)
f=120Hz (sine wave)
e
i
=0.5V
rms
RR=20 log (e
i
/e
o
)
Fig.3 Power Dissipation vs. Ambient
Temperature
Fig.4 Overcurrent Protection
Characteristics (Typical value)
0
-20
0
P
D1
P
D2
50
100
150
5
10
15
20
Power dissipation P
D
(W)
Ambient temperature T
a
(C)
P
D1 :
No heat sink
P
D2 :
With infinite heat sink
0
1.0
2.0
3.0
4.0
100
80
40
60
20
0
Relative output voltage (%)
Output current I
O
(A)
Note) Oblique line portion:Overheat protection may operate in
this area.
Low Power-Loss Voltage Regulators
PQ05RF2/PQ05RF21/PQ05RF2V Series
Fig.7 Output Voltage Minute Adjustment
Characteristics (PQ12RF2V)
Fig.9 Output Voltage Deviation vs. Junction
Temperature (PQ05RF2/PQ05RF21/PQ05RF2V)
Fig.11 Output Voltage Deviation vs. Junction
Temperature (PQ12RF2/PQ12RF21/PQ12RF2V)
Fig.10 Output Voltage Deviation vs. Junction
Temperature (PQ09RF2/PQ09RF21/PQ09RF2V)
Fig.12 Output Voltage Deviation vs. Junction
Temperature (PQ15RF2/PQ15RF21/PQ15RF2V)
Fig.8 Output Voltage Minute Adjustment
Characteristics (PQ15RF2V)
10
3
10
4
10
5
10.8
12.0
13.2
R
1
=390
R
1
=1k
R
1
=3.9k
Output voltage V
O
(V)
R
2
(
)
10
3
10
4
10
5
13.5
15.0
16.5
R
1
=390
R
1
=1k
R
1
=3.9k
Output voltage V
O
(V)
R
2
(
)
V
IN
=7V
I
O
=0.5A
-25
0
50
25
100
75
125
150
100
50
0
-50
-100
Output voltage deviation
V
O
(mV)
Junction temperature T
j
(C)
V
IN
=15V
I
O
=0.5A
-25
0
50
25
100
75
125
250
150
100
50
0
-50
-100
-150
Output voltage deviation
V
O
(mV)
Junction temperature T
j
(C)
-200
-25
0
50
25
100
75
125
250
200
150
100
50
0
-50
-100
-150
Output voltage deviation
V
O
(mV)
Junction temperature T
j
(C)
V
IN
=18V
I
O
=0.5A
V
IN
=23V
Io=0.5A
-200
-25
0
50
25
100
75
125
250
200
150
100
50
0
-50
-100
-150
Output voltage deviation
V
O
(mV)
Junction temperature T
j
(C)
Low Power-Loss Voltage Regulators
PQ05RF2/PQ05RF21/PQ05RF2V Series
Fig.13 Output Voltage vs. Input Voltage
(PQ05RF2/PQ05RF21/PQ05RF2V)
Fig.15 Output Voltage vs. Input Voltage
(PQ12RF2/PQ12RF21/PQ12RF2V)
Fig.17 Circuit Operating Current vs. Input Voltage
(PQ05RF2/PQ05RF21/PQ05RF2V)
Fig.16 Output Voltage vs. Input Voltage
(PQ15RF2/PQ15RF21/PQ15RF2V)
Fig.18 Circuit Operating Current vs. Input Voltage
(PQ09RF2/PQ09RF21/PQ09RF2V)
Fig.14 Output Voltage vs. Input Voltage
(PQ09RF2/PQ09RF21/PQ09RF2V)
0
0
2
6
4
8
10
8
7
6
5
4
3
2
1
Output voltage V
O
(V)
Input voltage V
IN
(V)
R
L
=
R
L
=5
R
L
=2.5
0
0
5
10
15
5
10
Output voltage V
O
(V)
Input voltage V
IN
(V)
R
L
=
R
L
=9
R
L
=4.5
0
0
5
10
15
20
25
5
10
15
20
R
L
=
R
L
=12
R
L
=6
Output voltage V
O
(V)
Input voltage V
IN
(V)
0
0
5
10
15
20
25
5
10
15
20
Output voltage V
O
(V)
Input voltage V
IN
(V)
R
L
=
R
L
=15
R
L
=7.5
0
0
10
15
5
20
40
60
R
L
=
R
L
=
R
L
=9
R
L
=9
R
L
=4.5
R
L
=4.5
80
Circuit operating current I
BIAS
(mA)
Input voltage V
IN
(V)
0
0
5
10
20
40
60
R
L
=
R
L
=5
R
L
=2.5
80
Circuit operating current I
BIAS
(mA)
Input voltage V
IN
(V)
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