Low Power-Loss Voltage Regulators (Built-in Overheat Shut-Down Function)
s
Features
¡Compact
resin full-mold package
¡Low
power-loss (Dropout voltage : MAX.0.5V)
¡Overheat
shut-down function (Keep shut-down output until
power-on again)
¡Overcurrent
protection type
¡Built-in
ON/OFF control function
¡High-precision
output type
(Output voltage precision :
±2.5%)
29.1MAX
s
Outline Dimensions
10.2MAX
3.6±0.2
(Unit : mm)
4.5±0.2
2.8±0.2
7.4±0.2
PQ05RB11
4-1.4
13.5MIN
+0.3
-0
4-0.6
+0.2
-0.1
s
Applications
¡Series
power supply for TVs and VCRs
¡Switching
power supply
3-(2.54)
(0.5)
1 2 3 4
q q q q
s
Model Line-ups
Output
Model No.
5V
PQ05RB11
9V
PQ09RB11
12V
PQ12RB11
Internal connection diagram
1
Specific IC
4
3
2
1
DC input (V
IN
)
2
DC output (V
O
)
3
GND
4
ON/OFF control
terminal (V
C
)
s
Absolute Maximum Ratings
*1
*1
(T
a
=25˚C)
Symbol
V
IN
V
C
I
O
P
D1
P
D2
T
j
T
opr
T
str
T
sol
Rating
35
35
1
1.25
12.5
150
-20 to +80
-40 to +150
260
Unit
V
V
A
W
W
˚C
˚C
˚C
˚C
*2
*3
*1
Parameter
Input voltage
ON/OFF control terminal voltage
Output current
Power dissipation (No heat sink)
Power dissipation (With infinte heat sink)
Junction temperature
Operating temperature
Storage temperature
Soldering temperature
All are open except GND and applicable terminals.
Overheat shut-down function operates at T
j
>=110˚C
*3
For 10s
*2
· Please refer to the chapter “Handling Precautions” .
“In the absence of confirmation by device specification sheets,SHARP takes no responsibility for any defects that may occur in equipment using any SHARP devices
shown in catalogs,data books,etc.Contact SHARP in order to obtain the latest version of the device specification sheets before using any SHARP's device.”
4.8MAX
15.6±0.5
φ3.2±0.1
(1.5)
Low Power-Loss Voltage Regulators
PQ05RB11 Series
s
Electrical Characteristics
Parameter
PQ05RB11
Output Voltage
PQ09RB11
PQ12RB11
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
Overheat shut-down temperature
*4
*5
*6
*7
(Unless otherwise specified, condition shall be I
O
=0.5A, V
IN
=
*4
, Ta=25˚C)
Symbol
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
T
SD
I
O
=5mA to 1A
*5
Conditions
-
Tj=0 to 125˚C, I
O
=5mA
Refer to Fig.2
*6
, I
O
=0.5A
-
V
C
=2.7V
-
V
C
=0.4V
I
O
=0A
-
MIN.
4.88
8.78
11.7
-
-
-
45
-
2.0
*7
-
-
-
-
110
TYP.
5.0
9.0
12.0
0.1
0.5
±0.02
55
-
-
-
-
-
-
130
MAX.
5.12
9.22
12.3
2.0
2.5
-
-
0.5
-
20
0.8
-0.4
10
150
Unit
V
%
%
%/˚C
dB
V
V
µA
V
mA
mA
˚C
PQ05RB11:V
IN
=7V,
PQ09RB11:V
IN
=15V, PQ12RB11:V
IN
=18V
PQ05RB11:V
IN
=6 to 12V,
PQ09RB11:V
IN
=10 to 25V,
PQ12RB11:V
IN
=13 to 29V
Input voltage shall be the value when output voltage is 95% in comparison with the initial value.
In case of opening control terminal
4,
output voltage turns on.
Fig.1 Test Circuit
V
IN
1
q
2
q
4
q
3
q
0.33µF
V
C
47µF
V
O
Fig.2 Test Circuit of Ripple Rejection
1
q
2
q
I
O
4
47µF
q
3
q
V
IN
0.33µF
+
+
A
+
I
O
~
e
i
A
I
q
I
C
V
R
L
R
L
V
e
o
~
A
f=120Hz (sine wave)
e
i
=0.5V
rms
RR=20 log (e
i
/e
o
)
Fig.3 Power Dissipation vs. Ambient
Temperature
P
D2
Fig.4 Overcurrent Protection
Characteristics (Typical Value)
100
Relative output voltage (%)
Power dissipation P
D
(W)
10
80
60
40
20
0
5
P
D
1 :No heat sink
P
D
2 :With infinite heat sink
0
-20
P
D1
0
50
100
150
Ambient temperature T
a
(˚C)
Note) Oblique line portion : Overheat protection operates in
this area.
0
0.5
1.0
1.5
Output current I
O
(A)
2.0
Low Power-Loss Voltage Regulators
Fig.5 Output Voltage vs. Input Voltage
(PQ05RB11)
6
5
R
L
=∞Ω
Output voltage V
O
(V)
R
L
=10Ω
4
R
L
=5Ω
3
2
1
0
T
j
=25˚C
PQ05RB11 Series
Fig.6 Output Voltage vs. Input Voltage
(PQ09RB11)
10
9
8
7
6
5
4
3
2
1
0
T
j
=25˚C
R
L
=∞Ω
R
L
=18Ω
R
L
=9Ω
Output voltage V
O
(V)
0
1
2
3 4 5 6 7 8
Input voltage V
IN
(V)
9
10
0
2
4
6
8
10
Input voltage V
IN
(V)
12
Fig.7 Output Voltage vs. Input Voltage
(PQ12RB11)
15
T
j
=25˚C
Fig.8 Dropout Voltage vs. Junction Temperature
0.50
0.45
R
L
=24Ω
10
R
L
=12Ω
5
Dropout voltage V
i
-O
(V)
R
L
=∞Ω
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
-25
0.25A
0.75A
0.5A
I
O
=1A
Output voltage V
O
(V)
0
0
5
10
Input voltage V
IN
(V)
0
25
50
75
100
Junction temperature T
j
(˚C)
125
Fig.9 Circuit Operating Current vs. Input
Voltage (PQ05RB11)
40
Fig.10 Circuit Operating Current vs. Input
Voltage (PQ09RB11)
40
Circuit operating current I
BIAS
(mA)
35
30
25
20
15
10
5
0
2
R
L
=9Ω
R
L
=18Ω
R
L
=∞Ω
T
j
=25˚C
Circuit operating current I
BIAS
(mA)
T
j
=25˚C
35
30
25
20
15
10
5
0
0
1
2
3 4 5 6 7 8
Input voltage V
IN
(V)
9 10
R
L
=5Ω
R
L
=10Ω
R
L
=∞
Ω
4
6
8
10 12
Input voltage V
IN
(V)
14
Low Power-Loss Voltage Regulators
Fig.11 Circuit Operating Current vs. Input
Voltage (PQ12RB11)
40
Circuit operating current I
BIAS
(mA)
Output peak current I
OP
(A)
PQ05RB11 Series
Fig.12 Output Peak Current vs. Junction
Temperature
2.2
35
30
25
20
15
10
5
0
T
j
=25˚C
2.0
V
IN
-V
O
=5V
V
IN
-V
O
=2V
V
IN
-V
O
=1V
V
IN
-V
O
=0.5V
1.6
1.4 I
OP
:Output current when
output voltage is 95%
in comparison with
the initial value
1.2
-25
0
25
50
75
100
Junction temperature T
j
(˚C)
1.8
R
L
=12Ω
R
L
=24Ω
R
L
=∞Ω
5
10
Input voltage V
IN
(V)
125
s
Overheat Shut-down Characteristics
ON
V
IN
OFF
Highor open)
(
V
C
Low
*Tsd
T
j
V
O
*Tsd : Overheat shut-down temperature (Tj>=110˚C)
(1) Overheat shut-down operates at Tj=Tsd and output OFF-state is maintained.
(2) OFF-state is kept untill V
IN
is once turned off or Vc is turned down to the “L” level.
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