Sharp PQ05RF14 Datasheet
Low Power-Loss Voltage Regulators
PQ05RF14
1A Output, Low Power-Loss Voltage Regulator Considering Power Line Voltage Drop
PQ05RF14
■ Features
¡Low power-loss (Dropout voltage : MAX. 0.5V)
¡Compact resin full-mold package
¡Output voltage value (5.1V) with an allowance for power line
voltage drop
¡High-precision output voltage type (output voltage precision :
±2.5%)
¡Built-in ON/OFF control function
■ Applications
¡Series power supply for various electronic equipment such as VCRs
and electronic instruments
■ Outline Dimensions
10.2MAX
7.4±0.2
PQ05RF14
29.1MAX
13.5MIN
●1 ●2 ●3 ●4
Internal connection diagram
1
Specific IC
3
φ3.2±0.1
4-1.4
4-0.6
3-(2.54)
2
4
3.6±0.2
+0.3
-0
+0.2
-0.1
1 DC input (VIN)
2 DC output (V
3 GND
4 ON/OFF control
terminal (V
4.5±0.2
(0.5)
O)
C)
(Unit : mm)
2.8±0.2
4.8MAX
15.6±0.5
(1.5)
■ Absolute Maximum Ratings
*1
Input voltage
*1
ON/OFF control terminal voltage
Output current
Power dissipation (No heat sink)
Power dissipation (with infinite heat sink)
*2
Junction temperature
Operating temperature
Storage temperature
Soldering temperature
*1
All are open except, GND and applicable terminals.
*2
Over heat protection may operate at 125=<T
“ 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. ”
Parameter Symbol Rating Unit
j
=<150˚C
V
IN
V
C
I
O
P
D1
P
D2
T
j
T
opr
T
stg
T
sol
35
35
1
1.5
15
150
-20 to +80
-40 to +150
260 (For 10s)
(Ta=25˚C)
V
V
A
W
W
˚C
˚C
˚C
˚C
· Please refer to the chapter“ Handling Precautions ”.
Low Power-Loss Voltage Regulators PQ05RF14
■ Electrical Characteristics
(Unless otherwise specified,condition shall be VIN=7V, Io=0.5A, Ta=25˚C)
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 current
OFF-state voltage for control
OFF-state current for control
Quiescent current
*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.
Fig.1 Test Circuit
V
IN
0.33µF
●3
A
47µF
●2●1
V
C
●4
I
C
+
A
I
q
V
O
RegL
R
TcVo
RR
V
C(ON
V
C(ON
I
C(OFF
V
C(OFF
I
eg
L
i
-o
)
)
)
)
q
I
O
=5mA to 1A
I
IN
=6 to 16V
V
Tj=0 to 125˚C
Refer to Fig. 2
*3
*4
VC=2.7V
C
=0.4V
V
O
=0A
I
Fig.2 Test Circuit of Ripple Rejection
V
O
I
O
A
V
R
L
~
e
i
V
IN
-
-
0.33µF
UnitMAX.TYP.MIN.
4.97
45
2.0
●2●1
●4
47µF
●3
5.1
-
0.1
-
0.5
-
±0.02
-
-
-
-
-
+
I
O
+
R
L
55
-
-
-
-
-
-
e
o
V
~
5.23
2.0
2.5
-
-
0.5
-
20
0.8
-0.4
10
IO=0.5A
f=120Hz (sine wave)
e
i
=0.5V
RR=20 log (ei/eo)
V
%
%
%/˚C
dB
V
V
µA
V
mA
mA
rms
Fig.3 Power Dissipation vs. Ambient
Temperature
20
15
(W)
D
10
5
Power dissipation P
0
-20 0
Note) Oblique line portion:Overheat protection may operate in
this area.
PD1 :No heat sink
P
D2
:With infinite heat sink
P
D2
D1
P
50 100 150
Ambient temperature Ta (˚C)
Fig.4 Overcurrent Protection
Characteristics (Typical Value)
100
80
60
40
20
Relative output voltage (%)
0
0 0.60.3 1.20.9 1.81.5 2.1
Output current IO (A)
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