1A Output, Low Power-Loss Voltage Regulators Considering Power Line Voltage Drop
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%)
29.1MAX
s
Outline Dimensions
10.2MAX
4.5±0.2
(Unit : mm)
2.8±0.2
7.4±0.2
PQ15RF15
4-1.4
+0.3
-0
13.5MIN
4-0.6
+0.2
-0.1
3-(2.54)
(0.5)
s
Applications
¡
TVs and VCRs with built-in BS tuners
¡
BS tuners
1 2 3 4
q q q q
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
Parameter
*1
*1
(T
a
=25˚C)
Symbol
Rating
Unit
V
IN
35
V
V
C
35
V
I
O
1
A
P
D1
1.5
W
P
D2
15
T
j
150
˚C
T
opr
-20 to +80
˚C
T
stg
-40 to +150
˚C
T
sol
260 (For 10s) ˚C
*2
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
*2
All are open except GND and applicable terminals.
Overheat protection may opetate at 125=<T
j
=<150˚C
· 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
(1.5)
φ3.2±0.1
3.6±0.2
Low Power-Loss Voltage Regulators
s
Electrical Characteristics
Parameter
Output voltage
PQ15RF15
PQ15RF16
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
qs
I
O
=5mA to 1.0A
V
N
=17 to 27V
T
j
=0 to 125˚C
Refer to Fig. 2
*3
I
O
=0.5A
*4
PQ15RF15/PQ15RF16
(Unless otherwise specified, condition shall be V
IN
=18V, I
0
=0.5A, T
a
=25˚C)
Conditions
MIN.
14.92
15.31
-
-
-
45
-
2.0
-
-
-
-
TYP.
15.7
15.7
0.2
0.2
±0.01
65
0.2
-
-
-
-
6
MAX.
16.48
16.09
2.0
2.5
-
-
0.5
-
20
0.8
-0.4
10
Unit
V
%
%
%/˚C
dB
V
V
µA
V
mA
mA
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
*3
*4
V
C
=2.7V
V
C
=0.4V
I
O
=0A
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
Fig.2 Test Circuit of Ripple Rejection
V
IN
1
q
2
q
4
q
3
q
V
C
47µF
V
O
1
q
e
i
2
q
4
q
3
q
47µF
+
+
I
O
R
L
V
e
o
~
A
+
I
O
~
0.33µF
A
I
q
I
C
V
R
L
V
IN
0.33µF
A
f=120Hz (sine wave)
e
i
=0.5V
rms
RR=20 log (e
i
/e
o
)
Fig.3 Power Dissipation vs. Ambient
Temperature
20
P
D1
:No heat sink
P
D2
:With infinite heat sink
Power dissipation P
D
(W)
Fig.4 Overcurrent Protection
Characteristics (Typical Value)
100
Relative output voltage (%)
15
P
D2
80
60
40
10
5
P
D1
20
0
0
50
100
150
Ambient temperature T
a
(˚C)
Note) Oblique line portion:Overheat protection may operate
in this area.
0
-20
0
1.0
2.0
Output current
I
O
(A)
3.0
Low Power-Loss Voltage Regulators
Fig.5 Output Voltage Deviation vs. Junction
Temperature
250
Output voltage deviation
∆V
O
(mV)
PQ15RF15/PQ15RF16
Fig.6 Output Voltage vs. Input Voltage
20
Output voltage V
O
(V)
V
IN
=18V
200
I
O
=0.5A
150
100
50
0
-50
-100
-150
-200
-25
0
25
50
75
100
Junction temperature T
j
(˚C)
125
15
R
L
=30Ω
R
L
=∞
10
R
L
=15Ω
5
0
0
5
10
15
20
Input voltage V
IN
(V)
25
Fig.7 Circuit Operating Current vs.
Input Voltage
Circuit operating current I
BIAS
(mA)
30
Fig.8 Dropout Voltage vs. Junction
Temperature
0.5
0.4
I
O
=1A
0.3
0.75A
0.2
0.5A
0.1
0
-25
0.25A
20
R
L
=
10Ω
10
R
L
=30Ω R
L
=
15Ω
R
L
=∞
20
0
0
5
10
15
Input voltage V
IN
(V)
Dropout voltage V
i-
O
(V)
0
25
50
75
100
Junction temperature T
j
(˚C)
125
Fig.9 Quiescent Current vs. Junction
Temperature
10
V
IN
=35V
I
O
=0
8
6
Fig.10 Ripple Rejection vs. Input Ripple
Frequency
80
70
Ripple rejection RR (dB)
Quiescent current I
q
(mA)
60
50
40
30
20
Io=0.5A,e
i
=0.5V
rms
,
10 T
j
=25˚C
V
IN
=18V
0
0.1
1
10
Input ripple frequency f (kHz)
4
2
0
-25
0
25
50
75
100
Junction temperature T
j
(˚C)
125
100
Low Power-Loss Voltage Regulators
Fig.11 Ripple Rejection vs. Output Current
80
PQ15RF15/PQ15RF16
Fig.12 Output Peak Current vs. Junction
Temperature
2.5
Output peak current I
OP
(A)
Ripple rejection RR (dB)
70
60
50
40
V
IN-
V
O
=5V
2.0
2V
1V
0.5V
1.5
I
OP
:
Output current when
1.0
-25
output voltage is 95% in
comparison with the initial
value
T
j
=25˚C
f=120Hz,e
i
=0.5V
rms
,
30 V
IN
=18V
0
0.5
1.0
Output current
I
O
(A)
1.5
0
25
50
75
100
Junction temperature T
j
(˚C)
125
s
Model Line-ups for Lead Forming Type
Output voltage
Output voltage precision:±5%
Output voltage precision:±2.5%
15.7V output
PQ15RF1F
PQ15RF1G
s
Outline Dimensions (PQ15RF1F/PQ15RF1G)
10.2MAX
3.6±0.2
(Unit : mm)
4.5±0.2
2.8±0.2
7.4±0.2
(24.6)
(2.0)
(1.5)
4-1.4
4-0.6
+0.3
-0
+0.2
-0.1
(0.5)
(3.2)
3-(2.54)
5±0.5
8.2±0.7
· ( ) : Typical value
· Radius of lead forming portion : R=0.5 to 1.5mm
1 2 3 4
q q q q
Internal connection diagram
1
DC input (V
IN
)
2
DC output (V
O
)
3
GND
4
ON/OFF control
terminal (V
C
)
1
Specific IC
3
2
4
Note) The value of absolute maximum ratings and electrical characteristics is same as ones of
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