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Low Power-Loss Voltage Regulators
PQ05SZ5/PQ05SZ1 Series
PQ05SZ5/PQ05SZ1 Series
s
Features
Low power-loss (Dropout voltage : MAX. 0.5V)
Surface mount type package (Equivalent to SC-63)
Built-in a function to prevent reverse voltage between input and
output
The diode to prevent reverse voltage between input and output is
not necessary. (When V
O-I
<=13V)
s
Applications
Portable equipment
Notebook PC
s
Outline Dimensions
(Unit : mm)
Low Power-Loss Voltage Regulators (Built-in Reverse Voltage Protection Function)
Parameter
Input voltage
Input-output reverse voltage
Output current
Power dissipation
Junction temperature
Operating temperature
Storage temperature
Soldering temperature
*1
All are open except GND and applicable terminals.
*2
With imfinite heat sink.
* Over heat protection may operate at 125C<=T
j
<=150C
s
Absolute Maximum Ratings
(T
a
=25C,
XX
=
05,09,12
)
Symbol
Rating
Unit
V
IN
V
O
-
i
I
O
P
D
T
j
T
opr
T
stg
T
sol
24
13
8
150
-20 to +80
-40 to +150
260
V
V
A
W
C
C
C
C
Conditions
*1
V
IN
=0V
Refer to Fig. 4
*2
*
For 10s
PQ
XX
SZ5/51
0.5
PQ
XX
SZ1/11
1.0
05SZ5
6.6MAX
9.7MAX
2.5MIN
0.7MAX
5.20.5
2.30.5
0.5
+0.2
-0.1
5.50.5
2-(2.54)
(0.5)
(0.5)
(0.9)
(1.7)
1
2
2
2
3
3
1
Specific IC
Internal connection diagram
(0 to 0.25)
1 DC input (V
IN
)
2 DC output (V
O
)
3 GND
Heat sink is common to 2 (V
O
).
PQ05SZ5
PQ05SZ51
PQ05SZ1
PQ05SZ11
Output voltage
precision:5%
Output voltage
precision:2.5%
Output voltage
precision:5%
Output voltage
precision:2.5%
s
Model Line-ups
5V output
0.5A output
PQ09SZ5
PQ09SZ51
PQ09SZ1
PQ09SZ11
9V output
PQ12SZ5
PQ12SZ51
PQ12SZ1
PQ12SZ11
12V output
1A output
Low Power-Loss Voltage Regulators
PQ05SZ5/PQ05SZ1 Series
Parameter
Symbol
Conditions
V
O
R
eg
L
R
eg
I
T
C
V
O
RR
V
i
-
O
I
q
Load regulation
Line regulation
Temperature coefficient of output voltage
Ripple rejection
Dropout voltage
Quiescent current
Unit
MAX.
TYP.
MIN.
PQ05SZ1/5
PQ09SZ1/5
PQ12SZ1/5
PQ05SZ11/51
PQ09SZ11/51
PQ12SZ11/51
PQ
XX
SZ1/11
PQ
XX
SZ5/51
4.75
8.55
11.4
4.88
8.78
11.7
-
-
-
45
-
-
*4
I
O
=5mA,
*5
I
O
=5mA, T
j
=0 to 125C,
*6
Refer to Fig. 2
*7
I
O
=0.5A
I
O
=0.3A
I
O
=0A,
*6
5.0
9.0
12.0
5.0
9.0
12.0
0.2
0.1
0.01
60
0.2
4.0
5.25
9.45
12.6
5.12
9.22
12.3
2.0
2.5
-
-
0.5
10.0
Output voltage
s
Electrical Characteristics
*3
PQxxSZ1/11 Series
:Io=0.5A
PQxxSZ5/51 Series
:Io=0.3A
*4
PQ05SZ1/11
:V
IN
=7V, Io=5mA to 1.0A
PQ05SZ5/51
:V
IN
=7V, Io=5mA to 0.5A
PQ09SZ1/11
:V
IN
=11V, Io=5mA to 1.0A
PQ09SZ5/51
:V
IN
=11V, Io=5mA to 0.5A
PQ12SZ1/11
:V
IN
=14V, Io=5mA to 1.0A
PQ12SZ5/51
:V
IN
=14V, Io=5mA to 0.5A
*5
PQ05SZ1/11/5/51
:V
IN
=6 to 16V
PQ09SZ1/11/5/51
:V
IN
=10 to 20V
PQ12SZ1/11/5/51
:V
IN
=13 to 23V
*6
PQ05SZ1/11/5/51
:V
IN
=7V
PQ09SZ1/11/5/51
:V
IN
=11V
PQ12SZ1/11/5/51
:V
IN
=14V
*7
Input voltage shall be the value when output voltage is 95% in comparison with the initial value.
(T
j
=25C, xx=05,09,12)
V
%
%
%/C
dB
V
mA
*3
V
IN
=7V
V
IN
=11V
V
IN
=14V
V
IN
=7V
V
IN
=11V
V
IN
=14V
Fig.3
Overcurrent Protection
Characteristics(Typical Value)
Fig.2 Test Circuit of Ripple Rejection
Relative output voltage (%)
Output current I
O
(A)
0
0
20
40
60
80
100
0.3
0.6
0.9
1.2
1.5
1.8
2.1
PQxxSZ5/51
PQxxSZ1/11
q
3
q
2
q
1
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
V
IN
= 7V (
PQ05SZ1/11/5/51
)
V
IN
=11V (
PQ09SZ1/11/5/51
)
V
IN
=14V (
PQ12SZ1/11/5/51
)
I
O
=0.3A
RR=20 log (e
i
/e
o
)
q
3
q
2
q
1
A
V
A
V
IN
I
q
I
O
V
O
R
L
0.33
F
47
F
+
Fig.1 Test Circuit
Low Power-Loss Voltage Regulators
PQ05SZ5/PQ05SZ1 Series
-25
0
0
+50
-50
25
50
75
100
125
V
IN
=7V
I
O
=5mA
Output voltage deviation
V
O
(mV)
Junction temperature T
j
(C)
Fig.4 Power Dissipation vs. Ambient
Temperature
Fig.6 Output Voltage Deviation vs. Junction Temperature
(PQ09SZ1/PQ09SZ11/PQ09SZ5/PQ09SZ51)
Fig.7 Output Voltage Deviation vs. Junction Temperature
(PQ12SZ1/PQ12SZ11/PQ12SZ5/PQ12SZ51)
Fig.5 Output Voltage Deviation vs. Junction Temperature
(PQ05SZ1/PQ05SZ11/PQ05SZ5/PQ05SZ51)
0
+100
-100
Output voltage deviation
V
O
(mV)
Junction temperature T
j
(C)
-25
0
25
50
75
100
125
V
IN
=11V
I
O
=5mA
0
+100
-100
Output voltage deviation
V
O
(mV)
Junction temperature T
j
(C)
-25
0
25
50
75
100
125
V
IN
=14V
I
O
=5mA
Fig.8 Output Voltage vs. Input Voltage
(PQ05SZ1/PQ05SZ11)
Fig.9 Output Voltage vs. Input Voltage
(PQ05SZ5/PQ05SZ51)
Note) Oblique line portion:Overheat
protection may operate in this area.
,,
,,
,,
0
5
10
With infinite heat sink
Power dissipation P
D
(W)
Ambient temperature T
a
(C)
-20
0
0
20
40
60
80
100
P
D
0
1
2
3
4
5
6
7
Output voltage V
O
(V)
Input voltage V
IN
(V)
T
j
=25C
1
2
3
4
5
6
7
8
9 10
0
R
L
=
R
L
=20
R
L
=10
0
1
2
3
4
5
6
7
T
j
=25C
R
L
=
R
L
=10
R
L
=5
Output voltage V
O
(V)
Input voltage V
IN
(V)
1
2
3
4
5
6
7
8
9
10
0
Low Power-Loss Voltage Regulators
PQ05SZ5/PQ05SZ1 Series
Output voltage V
O
(V)
Input voltage V
IN
(V)
0
5
10
15
20
0
5
10
15
T
j
=25C
R
L
=
R
L
=24
R
L
=12
Junction temperature T
j
(C)
Dropout voltage V
i
-O
(V)
-25
0
0.2
0.1
0.3
0.4
0.5
0.6
25
50
75
100
125
I
O
=0.5A
I
O
=0.4A
Io=0.3A
I
O
=0.2A
I
O
=0.1A
Output voltage V
O
(V)
Input voltage V
IN
(V)
0
5
10
15
20
0
5
10
T
j
=25C
R
L
=
R
L
=24
R
L
=48
Junction temperature T
j
(C)
Dropout voltage V
i
-O
(V)
-25
0
0.2
0.1
0.3
0.4
0.5
0.6
25
50
75
100
125
I
O
=1.0A
I
O
=0.75A
I
O
=0.50A
I
O
=0.25A
Fig.10 Output Voltage vs. Input Voltage
(PQ09SZ1/PQ09SZ11)
Fig.12 Output Voltage vs. Input Voltage
(PQ12SZ1/PQ12SZ11)
Fig.14-a Dropout Voltage vs. Junction
Temperature (PQ05SZ5/51 Series)
Fig.13 Output Voltage vs. Input Voltage
(PQ12SZ5/PQ12SZ51)
Fig.14-b Dropout Voltage vs. Junction
Temperature (PQ05SZ1/11 Series)
Fig.11 Output Voltage vs. Input Voltage
(PQ09SZ5/PQ09SZ51)
0
5
T
j
=25C
R
L
=
R
L
=18
R
L
=9
Output voltage V
O
(V)
Input voltage V
IN
(V)
10
0
5
10
15
Output voltage V
O
(V)
Input voltage V
IN
(V)
0
5
10
15
20
T
j
=25C
R
L
=
R
L
=36
R
L
=18
0
5
10
T
j
=25C
R
L
=
R
L
=36
R
L
=18
0
5
10
Low Power-Loss Voltage Regulators
PQ05SZ5/PQ05SZ1 Series
Input voltage V
IN
(V)
Circuit operating current I
BIAS
(mA)
T
j
=25C
R
L
=
R
L
=5
R
L
=10
1
2
3
4
5
6
7
8
9
10
0
10
20
30
0
5
10
15
20
0
10
20
T
j
=25C
R
L
=
R
L
=20
R
L
=10
Input voltage V
IN
(V)
Circuit operating current I
BIAS
(mA)
Fig.15 Circuit Operating Current vs. Input
Voltage (PQ05SZ1/PQ05SZ11)
Fig.17 Circuit Operating Current vs. Input
Voltage (PQ09SZ1/PQ09SZ11)
Fig.19 Circuit Operating Current vs. Input
Voltage (PQ12SZ1/PQ12SZ11)
Fig.18 Circuit Operating Current vs. Input
Voltage (PQ09SZ5/PQ09SZ51)
Fig.20 Circuit Operating Current vs. Input
Voltage (PQ12SZ5/PQ12SZ51)
Fig.16 Circuit Operating Current vs. Input
Voltage (PQ05SZ5/PQ05SZ51)
Input voltage V
IN
(V)
Circuit operating current I
BIAS
(mA)
0
5
10
15
0
10
20
30
T
j
=25C
R
L
=
R
L
=9
R
L
=18
Input voltage V
IN
(V)
Circuit operating current I
BIAS
(mA)
0
5
10
15
20
0
10
20
T
j
=25C
R
L
=
R
L
=36
R
L
=18
Input voltage V
IN
(V)
Circuit operating current I
BIAS
(mA)
0
5
10
15
20
0
10
20
30
T
j
=25C
R
L
=
R
L
=12
R
L
=24
Input voltage V
IN
(V)
Circuit operating current I
BIAS
(mA)
0
5
10
15
20
0
10
20
T
j
=25C
R
L
=
R
L
=48
R
L
=24
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