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Low Power-Loss Voltage Regulators
PQ05RF14
s
Outline Dimensions
(Unit : mm)
1A Output, Low Power-Loss Voltage Regulator Considering Power Line Voltage Drop
s
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
s
Applications
Series power supply for various electronic equipment such as VCRs
and electronic instruments
PQ05RF14
Parameter
Symbol
Rating
Unit
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)
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
Over heat protection may operate at 125=<T
j
=<150C
s
Absolute Maximum Ratings
(T
a
=25C)
2
3
1
4
PQ05RF14
1 DC input (V
IN
)
2 DC output (V
O
)
3 GND
4 ON/OFF control
terminal (V
C
)
Internal connection diagram
Specific IC
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)
q
1
q
2
q
3
q
4
Please refer to the chapter" Handling Precautions ".
Low Power-Loss Voltage Regulators
PQ05RF14
Parameter
Symbol
Conditions
V
O
R
eg
L
R
eg
L
TcVo
RR
V
i
-o
V
C
(
ON
)
I
C
(
ON
)
V
C
(
OFF
)
I
C
(
OFF
)
I
q
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
Unit
MAX.
TYP.
MIN.
4.97
-
-
-
45
-
2.0
-
-
-
-
-
I
O
=5mA to 1A
V
IN
=6 to 16V
Tj=0 to 125C
Refer to Fig. 2
*3
*4
V
C
=2.7V
-
V
C
=0.4V
I
O
=0A
5.1
0.1
0.5
0.02
55
-
-
-
-
-
-
5.23
2.0
2.5
-
-
0.5
-
20
0.8
-0.4
10
V
%
%
%/C
dB
V
V
A
V
mA
mA
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,condition shall be V
IN
=7V, Io=0.5A, T
a
=25C)
Fig.3 Power Dissipation vs. Ambient
Temperature
Fig.1 Test Circuit
Note) Oblique line portion:Overheat protection may operate in
this area.
q
3
q
2
q
1
q
4
A
V
A
A
V
IN
I
q
I
O
V
O
V
C
R
L
0.33
F
47
F
+
I
C
0
-20
0
P
D1
P
D2
P
D1
:No heat sink
P
D2
:With infinite heat sink
50
100
150
5
10
15
20
Power dissipation P
D
(W)
Ambient temperature T
a
(C)
Fig.4 Overcurrent Protection
Characteristics (Typical Value)
0
0.6
0.3
1.2
0.9
1.8
1.5
2.1
100
80
40
60
20
0
Relative output voltage (%)
Output current I
O
(A)
q
3
q
2
q
1
q
4
V
e
i
V
IN
e
o
R
L
I
O
0.33
F
47
F
+
+
~
~
I
O
=0.5A
f=120Hz (sine wave)
e
i
=0.5V
rms
RR=20 log (e
i
/e
o
)
Fig.2 Test Circuit of Ripple Rejection
Low Power-Loss Voltage Regulators
PQ05RF14
Fig.5 Output Voltage vs. Input Voltage
Fig.7 Dropout Voltage vs. Junction
Temperature
Fig.9 Ripple Rejection vs. Input Ripple
Frequency
Fig.8 Quiescent Current vs. Junction
Temperature
Fig.10 Ripple Rejection vs. Output Current
Fig.6 Circuit Operating Current vs. Input
Voltage
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
=10
R
L
=5
0
0
5
10
10
20
30
R
L
=
R
L
=10
R
L
=5
40
Circuit operating current I
BIAS
(mA)
Input voltage V
IN
(V)
-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)
I
O
=1A
0.75A
0.5A
0.25A
0
-25
0
25
50
75
100
125
2
4
6
8
V
IN
=35V
I
O
=0
10
Quiescent current I
q
(mA)
Junction temperature T
j
(C)
0
0.1
10
1
100
10
20
30
40
50
60
70
80
Ripple rejection RR (dB)
Input ripple frequency f
(kHz)
I
O
=0.5A,e
i
=0.5V
rms
,
V
IN
=7V
30
0
0.8
0.6
0.4
0.2
1.0
40
50
60
70
80
Ripple rejection RR (dB)
Output current I
O
(A)
f=120Hz,e
i
=0.5V
rms
,
V
IN
=7V
Low Power-Loss Voltage Regulators
PQ05RF14
Fig.11 Output Peak Current vs. Dropout
Voltage
Fig.12 Output Peak Current vs. Junction
Temperature
1.0
0
5
10
15
1.5
T
j
=25C
2.0
Output peak current I
OP
(A)
Dropout voltage V
i
-O
(V)
-20
0
50
25
100
75
125
2.0
1.5
1.0
I
OP
:Output current when
output voltage is 95%
in comparison with
the initial value
0.5
Output peak current I
OP
(A)
Junction temperature T
j
(C)
V
IN
-Vo=5V
2V
0.5V
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