" 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. "
Low Power-Loss Voltage Regulators
PQ3DF53
3.3V Output, High Output Current (5A) Type Low Power-loss Voltage Regulator
s
Outline Dimensions
(Unit : mm)
s
Features
TO-3P package
Low power-loss (Dropout voltage : MAX. 0.5V at Io=5A)
3.3V output
High output current (5A)
High-precision output voltage type
(Output voltage precision :
2.5%)
Built-in ON/OFF cotrol function
Built-in overcurrent protection, overheat protection
function
s
Applications
Power supplies for various electronic equipment such as
personal computers
PQ3DF53
PQ3DF53
1
2
4
3
4.50.2
17.0MAX
2.00.2
1
2
3
4
5
6
39.0MAX
190.5
50.2
3.7MAX
17.0MIN
4-(2.54)
5-0.80.2
(0.6)
(1.4)
IC
chip
Reference
voltage
Comparator
Controller
1 DC input (V
IN
)
26DC output (V
O
)
3 GND
4 ON/OFF control
terminal (V
C
)
5 NC
Internal connection diagram
Parameter
Symbol
Rating
Unit
V
IN
V
C
I
O
P
D1
P
D2
T
j
T
opr
T
stg
T
sol
10
10
5.0
2.2
60
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)
Please refer to the chapter" Handling Precautions ".
Low Power-Loss Voltage Regulators
PQ3DF53
Fig.1
Test Circuit
Fig.2
Test Circuit for Ripple Rejection
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.
3.218
-
-
-
45
-
2.0
-
-
-
-
3.3
0.5
0.5
0.02
55
-
-
-
-
-
-
3.382
2.0
2.5
-
-
0.5
-
20
0.8
-0.4
17
s
Electrical Characteristics
*3
Input voltage shall be the value when output voltage is 95% in comparison with the initial value.
*4
In case of opening control terminal 4, output voltage turns on.
(Unless otherwise specified, conditions shall be V
IN
=5V, I
O
=2.5A T
a
=25C)
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
-
I
O
=5mA to 5.0A
V
IN
=4 to 10V
T
j
=0 to 125C
-
*3
, I
O
=5.0A
-
V
C
=2.7V
-
V
C
=0.4V
I
O
=0A
V
%
%
%/C
dB
V
V
A
V
mA
mA
*4
q
3
q
2
q
1
q
5
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
V
e
i
V
IN
I
O
e
o
R
L
0.33
F
47
F
+
+
~
~
q
5
f=120Hz (sine wave)
e
i
=0.5V
rms
V
IN
=5V
I
O
=0.5A
RR=20 log (e
i
/e
o
)
Note)
Oblique line portion:Overheat protection may
operate in this area.
0
-20
0
P
D1
P
D2
P
D1
:No heat sink
P
D2
:With infinite heat sink
40
20
60
80
20
10
30
40
50
60
Power dissipation P
D
(W)
Ambient temperature T
a
(C)
0
2
4
6
8
10
12
100
80
40
60
20
0
Relative output voltage (%)
Output current I
O
(A)
Fig.3
Power Dissipation vs. Ambient
Temperature
Fig.4
Overcurrent Protection
Characteristics (Typical Value)
Low Power-Loss Voltage Regulators
Fig.6
Output Voltage vs. Input Voltage
Fig.7
Circuit Operating Current vs. Input
Voltage
Fig.9
Quiescent Current vs. Junction
Temperature
Fig.8
Dropout Voltage vs. Junction
Temperature
Fig.10 Ripple Rejection vs. Input Ripple
Frequency
PQ3DF53
Fig.5
Output Voltage Deviation vs.
Junction Temperature
0
0
5
2
4
1
3
100
R
L
=
R
L
=0.66
R
L
=1.32
Circuit operating current I
BIAS
(mA)
Input voltage V
IN
(V)
T
a
=25C
-25
0
50
25
100
75
125
0.5
0.4
0.2
0.3
0.1
0
Dropout voltage V
i
-O
(V)
Junction temperature T
j
(C)
V
IN
=Input voltage when output voltage is 95%
in comparison with the initial value
I
O
=5A
0
-25
0
25
50
75
100
125
2
10
12
4
14
6
16
8
18
V
IN
=5V
I
O
=0A
20
Quiescent current I
q
(mA)
Junction temperature T
j
(C)
0
0.1
10
1
100
20
40
60
100
80
Input ripple frequency f
(kHz)
V
IN
=5V
Io=0.5A
e
i
=0.5V
rms
,
T
a
=25C
Ripple rejection RR (dB)
0
0
1
2
3
4
5
1
2
3
4
R
L
=
R
L
=1.32
R
L
=0.66
Output voltage V
O
(V)
Input voltage V
IN
(V)
T
a
=25C
V
IN
=5V
I
O
=2.5A
-25
0
50
25
100
75
125
20
15
10
5
0
-5
-10
-15
Output voltage deviation
V
O
(mV)
Junction temperature T
j
(C)
Low Power-Loss Voltage Regulators
PQ3DF53
s
Typical Applications
Fig.10 Ripple Rejection vs. Junction
Temperature
Specific IC
q
2
q
3
q
5
q
1
q
4
V
O
0.33
F
C
O
DC input
+
Load
High or Open :Output ON
Low :Output OFF
ON/OFF signal
-25
0
50
25
100
75
125
100
80
40
60
20
0
Ripple rejection RR (dB)
Junction temperature T
j
(C)
V
IN
=5V
I
O
=0.5A
e
i
=0.5V
rms
f=120Hz
PDF 
ZIP