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Low Power-Loss Voltage Regulators
PQ05RD11 Series
s
Outline Dimensions
(Unit : mm)
s
Features
Low Power-loss (Dropout voltage : MAX.0.5V at Io=0.5A)
Line-up for 5V, 9V and 12V output type
Compact resin package (TO-220 package)
High-precision output voltage type
Output voltage precision :
3.0%
Built-in ON/OFF control function
Built-in overcurrent protection, overheat protection, ASO
protection circuit
s
Applications
Power supplies for various electronic equipment such as AV,
OA equipment
Parameter
Symbol
Rating
Unit
V
IN
V
C
I
O
P
D1
P
D2
T
j
T
opr
T
stg
T
sol
20
20
1.0
1.4
15
150
-20 to +80
-40 to +150
260 (For 10s)
V
V
A
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)
PQ05RD11 Series
1A Output, General Purpose Low Power-loss Voltage Regulators
Please refer to the chapter "Handling Precautions" .
PQ05RD11
2
3
1
4
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
4.8MAX
(1.5)
(0.5)
4-(
1.4)
Control circuit
Internal connection diagram
1 DC input (V
IN
)
2 DC output (V
O
)
3 GND
4 ON/OFF control
terminal (V
C
)
1 2 3 4
Low Power-Loss Voltage Regulators
PQ05RD11 Series
Parameter
Symbol
Conditions
Output voltage
Load regulation
Line regulation
Temperature coefficient of output voltage
Ripple rejection
Dropout voltage
ON-state voltage for control
ON-state current for control
OFF-state voltage for control
OFF-state current for control
Quiescent current
Unit
MAX.
TYP.
MIN.
4.85
8.73
11.64
-
-
-
45
-
2
-
-
-
-
5.0
9.0
12.0
0.1
0.5
0.02
55
-
-
-
-
-
-
5.15
9.27
12.36
2.0
2.5
-
-
0.5
-
20
0.8
-0.4
10
s
Electrical Characteristics
*3
PQ05RD11
:V
IN
=7V,
PQ09RD11
:V
IN
=11V,
PQ12RD11
: V
IN
=14V
*4
PQ05RD11
:V
IN
= 6 to 12V,
PQ09RD11
:V
IN
=10 to 16V,
PQ12RD11
: V
IN
=13 to 19V
*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.
(Unless otherwise specified, conditions shall be I
O
=0.5A,
*3
,T
a
=25C)
-
Io=5mA to 1.0A
*4
, Io=5mA
T
j
=0 to 125C, Io=5mA
-
*5
-
V
C
=2.7V
-
V
C
=0.4V
Io=0A
V
%
%
%/C
dB
V
V
A
V
mA
mA
PQ05RD11
PQ09RD11
PQ12RD11
V
O
R
eg
L
R
eg
I
T
C
V
O
RR
V
i
-o
V
C (ON)
I
C (ON)
V
C (OFF)
I
C (OFF)
I
q
*6
Fig.1
Test Circuit
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
+
(PQ05RD11)
,,,
,,,
,,,
,,,
20
0
5
10
15
-20
0
20
40
60
80
P
D2
P
D1
Power dissipation P
D
(W)
Ambient temperature T
a
(C)
P
D1
:No heat sink
P
D2
:With infinite heat sink
100
0
40
20
60
80
0
0.5
1.0
1.5
2.0
2.5
V
IN
=20V
V
IN
=15V
V
IN
=7V
Output current I
O
(A)
Relative output voltage (%)
Fig.3
Power Dissipation vs. Ambient
Temperature
Fig.4
Overcurrent Protection
Characteristics (Typical Value)
Fig.2
Test circuit for Ripple Rejection
q
3
q
2
q
1
q
4
V
e
i
V
IN
I
O
e
o
R
L
0.33
F
47
F
+
+
~
~
f=120Hz (sine wave)
e
i
=0.5V
rms
V
IN
= 7V (
PQ05RD11
)
V
IN
=11V (
PQ09RD11
)
V
IN
=14V (
PQ12RD11
)
I
O
=0.3A
RR=20 log (e
i
/e
o
)
Note) Oblique line portion:Overheat protection may operate
in this area.
Low Power-Loss Voltage Regulators
Fig.5
Overcurrent Protection
Characteristics (Typical Value)
Fig.6
Overcurrent Protection
Characteristics (Typical Value)
PQ05RD11 Series
(PQ12RD11)
(PQ09RD11)
100
0
40
20
60
80
0
0.5
1.0
1.5
2.0
2.5
V
IN
=20V
V
IN
=17V
V
IN
=14V
Relative output voltage (%)
Output current I
O
(A)
100
0
40
20
60
80
0
0.5
1.0
1.5
2.0
2.5
V
IN
=20V
V
IN
=15V
V
IN
=11V
Relative output voltage (%)
Output current I
O
(A)
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