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PQ7VZ5
Datasheet (Sharp)
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Datasheet PQ7VZ5 Datasheet (Sharp)

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Page 1
Low Power-Loss Voltage Regulators
PQ7VZ5
Variable Output, Compact Surface Mount Type Low Power-Loss Voltage Regulators
PQ7VZ5
■ Features
■ Applications
¡Personal computers ¡Word processors ¡Printers ¡Camcoders ¡Personal Information Tools(PDA)
■ Outline Dimensions
6.6MAX
5.2±0.5
7VZ5
9.7MAX
5.5±0.5
2.5MIN
13245
Internal connection diagram
1
2
Specific IC
5
0.5
4-(1.27)
3
4
3
+0.2
-0.1
2.3±0.5
(0.5)
(0.5)
IN
1 V 2 ON/OFF control
OUT
3 V 4 O
ADJ
5 GND
Heat sink is common to 3 (V
(Unit : mm)
(0to0.25)
(0.9) (1.7)
OUT
)
■ Absolute Maximum Ratings
*1
Input voltage
*1
ON/OFF control terminal voltage
*1
Output adjustment terminal voltage Output current
*2
Power dissipation
*3
Junction temperature Operating temperature Storage temperature Soldering temperature
*1
All are open except GND and applicable terminals.
*2
P
D:
With infinite heat sink.
*3
Overheat 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
V
ADJ
I
O
P
D
T
j
T
opr
T
stg
T
sol
10 10
7
0.5 8
150
-20 to +80
-40 to +150
260 (For 10s)
(Ta=25˚C)
V V V
A W ˚C ˚C ˚C ˚C
· Please refer to the chapter“ Handling Precautions ”.
Page 2
Low Power-Loss Voltage Regulators PQ7VZ5
■ Electrical Characteristics
(Unless otherwise specified, conditions shall be VIN=5V, VO=3V(R1=1kΩ), Io=0.3A, VC=2.7V, Ta=25˚C)
Parameter Symbol Condition Input voltage Output voltage variable range Load regulation
RegL Line regulation Ripple rejection Dropout voltage Reference voltage Temperature coefficient of reference voltage ON-state voltage for control ON-state current for control OFF-state voltage for control OFF-state current for control
TCV V
I
V
I
C (OFF)
Quiescent current Output OFF-state consumption current
*4
In case of opening control terminal 2 , output voltage turns off.
Fig.1 Test Circuit
0.33µF
V
IN
●2
V
C
A
VO=V
ref
[R1=390Ω,V
●3●1
R
●4
●5
A
R
X 1+- 1.25 X 1+
R
ref
Iq1kΩ
2
=
1
1.25V]
=
R
2
1
V
R
2
­R
1
V
IN
V
O
eg
R
RR
i
-o
V
ref
V
C (ON) C (ON) C (OFF)
I
q
I
qs
47µF
+
O
=5mA to 0.5A
I
I
IN
=4 to 10V, IO=5mA
V Refer to Fig. 2
IN
=3.4, IO=0.3A
V
ref
O
=5mA, Tj=0 to 125˚C
I
*4
C
=0A
I
C
=0.4V, IC=0A
V
C
=0A
I
C
=0.4V
V
V
O
O
I
A
V
R
L
-
-
-
-
3.4
1.5
-
-
45
-
1.225
-
2.0
-
-
-
-
-
-
-
0.2
0.2 60
-
1.25 ±1.0
-
-
-
­4
-
10.0
7.0
2.0
2.5
-
0.5
1.275
-
-
200
0.8 2 7 5
Fig.2 Test Circuit for Ripple Rejection
0.33µF
e
i
~
V
IN
●2 ●4
V
C
●3●1
●5
f=120Hz (sine wave)
i
=0.5V
rms
e IO=0.3A RR=20 log (e
IN
=5V
V
O
=3V (R1=1kΩ)
V
1kΩ
R
2
47µF
R
1
i/eo
)
47µF
+
+
R
UnitMAX.TYP.NIN.
V
V % %
dB
V
V %
V
µA
V
µA
mA
µA
O
I
e
o
V
~
L
Fig.3 Power Dissipation vs. Ambient
Temperature
10
5
Power dissipation PD (W)
0
-20 0
Note) Oblique line portion:Overheat protection may
operate in this area.
PD:With infinite heat sink
P
D
8050 100 150
Ambient temperature Ta (˚C)
Fig.4 Overcurrent Protection
Characteristics(Typical Value)
4
a
=25˚C
T
O
=3V(R1=1kΩ,R2=1.4kΩ)
V
3
(V)
O
2
1
Output voltage V
0
0 0.5 1.0 1.5 2.0
V
i
-O
=0.5V
i
-O
=1V
V
Output current IO (A)
V
i
-O
=5V
i
-O
=2V
V
Page 3
Low Power-Loss Voltage Regulators
PQ7VZ5
Fig.5 Output Voltage Adjustment
Characteristics
8
R
1
=1kΩ
7 6
(V)
O
5 4
3 2
Output voltage V
1 0
0.1 101 100 1000 R2 (kΩ)
Fig.7 Output Voltage vs. Input Voltage
4
a =25˚C
T VO=3V(R1=1kΩ,R2=1.4kΩ)
3
2
L=1.2Ω
R
L=∞
R
R
L=0.6Ω
Fig.6 Reference Voltage Deviation vs.
Junction Temperature(Typical Value)
10
V
IN
=5V
8
(mV)
V
O
ref
=3V(R1=1kΩ,R2=1.4kΩ)
I
O
=0.3A
6 4 2
0
-2
-4
-6
-8
Reference voltage deviation ∆V
-10
-25
0 25 50 75 100 125
Junction temperature Tj (˚C)
Fig.8 Circuit Operating Current vs. Input
Voltage
30
a =25˚C
T V
O=3V
(R
1=1kΩ,
R
2=1.4kΩ)
20
L=6Ω
R
R
L=10Ω
1
Output voltage VO (V)
0
01234 756
Input voltage VIN (V)
Fig.9 Dropout Voltage vs. Junction
Temperature(Typical Value)
0.5 V
IN
=0.95V
O
VO=3V(R1=1kΩ,R2=1.4kΩ)
0.4
(V)
-O
i
0.3
0.2
Dropout voltage V
0.1
0
-25 0 5025 10075 125 Junction temperature Tj (˚C)
O
I
I
O
I
O O
I I
O
=0.5A
=0.4A =0.3A
=0.2A =0.1A
10
Circuit operating current IBIAS (mA)
0
01234 765
L=∞
R
Input voltage VIN (V)
Fig.10 ON-state Voltage for Control vs.
Junction Temperature(Typical Value)
3.0 V
IN
(V)
2.5
C(ON)
2.0
1.5
1.0
0.5
ON-state voltage for control V
=5V
O
=3V(R1=1kΩ,R2=1.4kΩ)
V
O
=0.3A
I
0
-25 0 5025 10075 125 Junction temperature Tj (˚C)
Page 4
Low Power-Loss Voltage Regulators PQ7VZ5
Fig.11 Quiescent Current vs. Junction
Temperature(Typical Value)
5
V
IN =5V
V
O=3V(R1=1kΩ,R2=1.4kΩ)
I
O =0.3A
4
3
2
1
Quiescent current Iq (mA)
0
-25 0 25 50 75 100 125 Junction temperature Tj (˚C)
Fig.13 Output Peak Current vs. Junction
Temperature(Typical Value)
2.0
1.5
1.0
VIN=5V VO=3V(R1=1kΩ,R2=1.4kΩ)
VIN-VO =5V
2V 1V
Fig.12 Ripple Rejection vs. Input Ripple
Frequency
70 60 50 40 30
IN
=5V
V
20
Ripple rejection RR (dB)
V
O
=3V(R1=1kΩ,R2=1.4kΩ)
Io=0.3A
10
e
i
=0.5V
0
0.1 101 100
rms
Input ripple frequency f
(kHz)
0.5V
0.5
I
OP:Output current when
output voltage is 95%
Output peak current IOP (A)
in comparison with the initial value
0
-25 0 5025 10075 125 Junction temperature Tj (˚C)
Fig.14 Power Dissipation vs. Ambient
Temperature(Typical Value)
3
Cu area 740mm
(W)
D
2
Cu area 180mm
Cu area 100mm
1
Power dissipation P
Cu area 70mm
Cu area 36mm
0
-20 0 Ambient temperature Ta (˚C)
2
2
2
20 40
2
2
60 80
100
PWB
PWB Cu
Material : Glass-cloth epoxy resin Size : 50X50X1.6mm Cu thickness : 35µm
3
Page 5
Low Power-Loss Voltage Regulators
■ Model Line-ups for Tape-packaged Products
PQ7VZ5
Output current
output
0.5A
Sleeve-packaged products
Standard type
-
High-precision output type
PQ7VZ5
Tape-packaged products
Standard type
-
High-precision output type
PQ7VZ5U
■ Adjustment of Output Voltage
Output voltage is able to be set from 1.5V to 7V when resistors R1, R2 are attached to £, ¢, ∞ terminals. As for the external resistors to set output voltage, refer to the following figure or Fig.5.
V
3
­+
V
ref
4
5
R
R
2
1
O
VO=V
ref
X (1+R2/R1)
=1.25X (1+R
1
=1kΩ,V
(R
2
/1000)
ref
=1.25V)
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