PQ7DV5 [SHARP]
Variable Output Type, High Output Current (5A) Type Low Power-loss Voltage Regulators; 可变的输出类型，高输出电流（ 5A ）型低功耗稳压调节器
| 型号： | PQ7DV5 |
| 厂家： | 
SHARP ELECTRIONIC COMPONENTS |
| 描述： | Variable Output Type, High Output Current (5A) Type Low Power-loss Voltage Regulators |
| 文件： | 总4页 (文件大小：38K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Low Power-Loss Voltage Regulators
PQ7DV5
PQ7DV5
Variable Output Type, High Output Current (5A) Type Low Power-loss Voltage Regulators
(Unit : mm)
■ Features
■ Outline Dimensions
¡ TO-3P package
¡ Low power-loss (Dropout voltage:MAX. 0.5V at Io=5A)
¡ Variable output type (1.5V to 7V)
¡ Minimum input voltage : 3.0V
¡ High output current type (5A)
¡ Reference voltage precision : ±2.0%
¡ Built-in ON/OFF control function
¡ Built-in overcurrent protection, overheat protection
function
4.5±0.2
17.0MAX
6
2.0±0.2
PQ7DV5
(1.4)
■ Applications
¡ Power supplies for various electronic equipment such as
personal computers
(0.6)
4-(2.54)
5-0.8±0.2
1
2 3 4 5
Internal connection diagram
1 DC input (VIN)
2,6 DC output (VO)
3 GND
4 ON/OFF control
terminal (VC)
5 Output voltage
minute
1
2
4
5
controller
comparator
Reference
voltage
adjustment
terminal (VADJ)
3
■ Absolute Mximum Ratings
(Ta=25˚C)
Parameter
Symbol
VIN
Rating
Unit
V
V
V
A
*1
*1
*1
Input voltage
10
10
5
5.0
ON/OFF control terminal voltage
Output adjustment terminal voltage
Output current
VC
VADJ
IO
Power dissipation (No heat sink)
Power dissipation (With infinite heat sink)
Junction temperature
Operating temperature
Storage temperature
P
P
T
Topr
T
T
D1
D2
2.2
60
150
W
W
˚C
˚C
˚C
˚C
*2
j
-20 to +80
-40 to +150
26(0For 10s)
stg
Soldering temperature
sol
*1
*2
All are open except GND and applicable terminals.
Overheat protection may operate at 125=<Tj=<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. ”
Low Power-Loss Voltage Regulators
PQ7DV5
■ Electrical Characteristics
(Unless otherwise specified, conditions shall be VIN=5V, I
O
=2.5A, V =3V [R1=2kΩ] Ta=25˚C)
O
Parameter
Input voltage
Output voltage
Reference voltage
Load regulation
Line regulation
Temperature coefficient of reference voltage
Ripple rejection
Dropout voltage
Symbol
Conditions
NIN.
TYP.
MAX.
10
7
1.275
2.0
2.5
-
-
0.5
-
Unit
V
V
V
%
-
-
-
VIN
3
1.5
1.225
-
-
-
45
-
2.0
-
-
-
-
VO
V
ref
eg
eg
1.25
0.5
0.5
±0.01
55
-
-
-
-
I =5mA to 5.0A
IN=4 to 10V
j=0 to 125˚C
O
R
R
L
I
V
%
T
V
V
V
TCVO
%/˚C
dB
V
V
µA
V
-
-
-
RR
-o
IN=3V, I =5A
O
Vi
*3
ON-state voltage for control
VC (ON)
ON-state current for control
OFF-state voltage for control
OFF-state current for control
Quiescent current
C
=2.7V
=0.4V
IC (ON)
20
VC (OFF)
0.8
- 0.4
17
C
IC (OFF)
-
-
-
-
mA
mA
Io=0A
Iq
*3
In case of opening control terminal 4, output voltage turns on.
Fig.1 Test Circuit
0.33µF
VIN
47µF
VO
1●
4●
2●
5●
R
2
IO
A
Vref
V
o
=Vref X (1+R
=1.25 (1+R
[R =2kΩ,Vref =1.25V]
2
/R
/R
1)
1)
+
VC
3●
V
X
2
R1
1
A
RL
V
A
I
q 2kΩ
Fig.2 Test Circuit for Ripple Rejection
0.33µF
+
47µF
1●
4●
2●
5●
f=120Hz (sine wave)
=0.5Vrms
IN=5V
=3V (R
=0.5A
RR=20 log (e
R
2
I
O
e
V
V
i
e
i
~
+
Vref
3●
V eo
~
O
1=2kΩ)
R
1
V
IN
R
L
VC
IO
2kΩ
2.7V
i/eo)
Fig.4 Overcurrent Protection
Fig.3 Power Dissipation vs. Ambient
Characteristics (Typical Value)
Temperature
60
100
P
D2
50
40
30
20
80
60
40
P
P
D1 :No heat sink
D2 :With infinite heat sink
20
0
10
0
P
D1
0
2.0
4.0
6.0
8.0
(A)
10
12
-20
0
20
40
60
80
Output current I
O
Ambient temperature T
a
(˚C)
Note) Oblique line portion:Overheat protection
may operate in this area.
Low Power-Loss Voltage Regulators
PQ7DV5
Fig.5 Reference Voltage Deviation vs.
Fig.6 Output Voltage vs. Input Voltage
Junction Temperature
10
4
Ta =25˚C
V
V
IN=5V
8
6
4
2
VO=3V(R1=2kΩ,R2=2.8kΩ)
O
=3V(R
1
=2kΩ,R =2.8kΩ)
2
IO
=2.5A
3
RL=1.2Ω
RL=∞
RL=0.6Ω
2
1
0
0
-2
-4
-6
-8
-10
-25
0
1
2
3
4
5
0
25
50
75
100 125
(˚C)
Input voltage VIN (V)
Junction temperature T
j
Fig.7 Circuit Operating Current vs. Input
Voltage
Fig.8 Dropout Voltage vs. Junction
Temperature
0.5
Ta =25˚C
VO=3V
(R1=2kΩ,
V
IN :0.95V
=3V(R
=5A
O
VO
1
=2kΩ,R =2.8kΩ)
2
0.4
IO
R2=2.8kΩ)
100
0.3
0.2
RL=0.6Ω
RL=1.2Ω
0.1
0
RL=∞
0
-25
0
25
50
75
100 125
(˚C)
0
1
2
3
4
5
Junction temperature T
j
Input voltage VIN (V)
Fig.9 Quiescent Current vs. Junction
Fig.10 Ripple Rejection vs. Input Ripple
Temperature
Frequency
20
100
V
IN =5V
=3V(R
=0A
18
16
14
12
V
O
1
=2kΩ,R =2.8kΩ)
2
80
I
O
60
40
10
8
6
4
2
0
V
V
IN=5V
20
0
O
=3V(R
1
=2kΩ,R
2
=2.8kΩ)
,
Io=0.5A,e
i
=0.5Vrms
T
a
=25˚C
0.1
1
10
100
-25
0
25
50
75
100 125
(˚C)
Input ripple frequency f (kHz)
Junction temperature T
j
Low Power-Loss Voltage Regulators
PQ7DV5
Fig.11 Ripple Rejection vs. Junction
Temperature
100
80
60
40
V
IN=5V
=3V(R =2kΩ,R
=0.5A,ei=0.5Vrms
20
0
VO
1
2
=2.8kΩ)
IO
f=120Hz
-25
0
25
50
75
100 125
j (˚C)
Junction temperature T
■ Standard Connection
D1
VO
VIN
1●
2●
5●
+
R2
R1
Cref
+
4●
3●
CO
CIN
2kΩ
ON/OFF
signal
High or Open :Output ON
Low :Output OFF
D1
: This device is necessary to protect the element from damage when reverse voltage may be applied to the regulator in case of
input short-circuiting.
Cref
: This device is necessary when it is required to enhance the ripple rejection or to delay the output start-up time*. Otherwise, it
is not necessary.
(Care must be taken since Cref may raise the gain, facilitating oscillation.)
* The output start-up time proportional to Cref X R2.
CIN, CO : Be sure to mount the devices CIN and CO as close to the device terminal as possible so as to prevent oscillation.
The standard specification of CIN= 0.33µF ,CO= 47µF, respectively. However, adjust them as necessary after checking.
R1, R2 : These devices are necessary to set the output voltage. The output voltage VO is given by the following formula:
VO=Vref X (1+R2/R1)
(Vref is 1.25V TYP)
The standard value of R1 is 2Ω. But value up to 10kΩ.
相关型号：
©2020 ICPDF网 联系我们和版权申明