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Low Power-Loss Voltage Regulators
PQ15RF15/PQ15RF16
s
Features
Low power-loss (Dropout voltage : MAX. 0.5V)
Compact resin full-mold package
Conforming to the unified standard for BS converter
Output voltage value (15.7V) with an allowance for voltage
loss caused by reverse flow preventing diode
Built-in ON/OFF control terminal corresponding to BS antenna
power supply selecting switch
High-precision output type
(PQ15RF16
) (Output voltage
precision :
2.5%)
s
Applications
TVs and VCRs with built-in BS tuners
BS tuners
PQ15RF15/PQ15RF16
1A Output, Low Power-Loss Voltage Regulators Considering Power Line Voltage Drop
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
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 opetate at 125=<T
j
=<150C
s
Absolute Maximum Ratings
(T
a
=25C)
2
3
1
4
PQ15RF15
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
s
Outline Dimensions
(Unit : mm)
Please refer to the chapter" Handling Precautions ".
Low Power-Loss Voltage Regulators
PQ15RF15/PQ15RF16
Fig.4 Overcurrent Protection
Characteristics (Typical Value)
Parameter
Symbol
Conditions
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
qs
MAX.
TYP.
MIN.
PQ15RF15
PQ15RF16
14.92
15.31
-
-
-
45
-
2.0
-
-
-
-
I
O
=5mA to 1.0A
V
N
=17 to 27V
T
j
=0 to 125C
Refer to Fig. 2
*3
I
O
=0.5A
*4
V
C
=2.7V
V
C
=0.4V
I
O
=0A
15.7
15.7
0.2
0.2
0.01
65
0.2
-
-
-
-
6
16.48
16.09
2.0
2.5
-
-
0.5
-
20
0.8
-0.4
10
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
=18V, I
0
=0.5A, T
a
=25C)
V
%
%
%/C
dB
V
V
A
V
mA
mA
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
Output OFF-state consumption current
Unit
Fig.1 Test Circuit
Note) Oblique line portion:Overheat protection may operate
in this area.
Fig.3 Power Dissipation vs. Ambient
Temperature
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)
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
+
0
1.0
2.0
3.0
100
80
40
60
20
0
Relative output voltage (%)
Output current
I
O
(A)
Fig.2 Test Circuit of 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
RR=20 log (e
i
/e
o
)
Low Power-Loss Voltage Regulators
PQ15RF15/PQ15RF16
Fig.5 Output Voltage Deviation vs. Junction
Temperature
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
Fig.6 Output Voltage vs. Input Voltage
-200
-25
0
50
25
100
75
125
250
200
150
100
50
0
-50
-100
-150
Output voltage deviation
V
O
(mV)
Junction temperature T
j
(C)
V
IN
=18V
I
O
=0.5A
0
0
5
10
15
20
25
5
10
15
20
Output voltage V
O
(V)
Input voltage V
IN
(V)
R
L
=
R
L
=30
R
L
=15
0
0
5
10
15
20
10
20
30
R
L
=
R
L
=30
R
L
=
10
Circuit operating current I
BIAS
(mA)
Input voltage V
IN
(V)
R
L
=
15
-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
Input ripple frequency f (kHz)
Io=0.5A,e
i
=0.5V
rms
,
T
j
=25C
V
IN
=18V
Ripple rejection RR (dB)
Low Power-Loss Voltage Regulators
PQ15RF15/PQ15RF16
Fig.11 Ripple Rejection vs. Output Current
Fig.12 Output Peak Current vs. Junction
Temperature
s
Outline Dimensions (PQ15RF1F/PQ15RF1G)
PQ15RF1F
PQ15RF1G
Output voltage precision:5%
Output voltage precision:2.5%
s
Model Line-ups for Lead Forming Type
15.7V output
Output voltage
30
0
0.5
1.0
1.5
40
50
60
70
80
Ripple rejection RR (dB)
Output current
I
O
(A)
T
j
=25C
f=120Hz,e
i
=0.5V
rms
,
V
IN
=18V
-25
0
50
25
100
75
125
2.5
2.0
1.5
I
OP
:
Output current when
output voltage is 95% in
comparison with the initial
value
1.0
Output peak current I
OP
(A)
Junction temperature T
j
(C)
V
IN-
V
O
=5V
1V
2V
0.5V
(Unit : mm)
PQ15RF15
2
3
1
4
1 DC input (V
IN
)
2 DC output (V
O
)
3 GND
4 ON/OFF control
terminal (V
C
)
Specific IC
Internal connection diagram
(24.6)
10.2MAX
7.40.2
3.60.2
3.20.1
+0.3
-0
4-1.4
+0.2
-0.1
4-0.6
3-(2.54)
4.50.2
2.80.2
16.40.7
(2.0)
(3.2)
q
1
q
2
q
3
q
4
(50.5)
50.5
8.20.7
(0.5)
(1.5)
4.4MIN
( ) : Typical value
Radius of lead forming portion : R=0.5 to 1.5mm
Note) The value of absolute maximum ratings and electrical characteristics is same as ones of
PQ15RF15/16 series.
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