PQ3RF43 [SHARP]
3.3V/4.6V Output Low Power-Loss Voltage Regulator; 3.3V / 4.6V输出低功耗稳压调节器
| 型号： | PQ3RF43 |
| 厂家： | 
SHARP ELECTRIONIC COMPONENTS |
| 描述： | 3.3V/4.6V Output Low Power-Loss Voltage Regulator |
| 文件： | 总4页 (文件大小：34K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Low Power-Loss Voltage Regulators
PQ3RF43
PQ3RF43
3.3V/4.6V Output Low Power-Loss Voltage Regulator
(Unit : mm)
■ Features
■ Outline Dimensions
¡
L
o
w
p
o
w
e
r
-
l
o
s
s
4.5±0.2
10.2MAX
(Dropout voltage : MAX.0.5V at Io = 4.0A)
(Dropout voltage : MAX.1.0V at Io = 4.6A)
¡ Compact resin full-mold package (TO-220 package)
¡ 3.3V/4.6A output type
2.8±0.2
φ3.2±0.1
PQ3RF43
¡ High-precision output voltage type
Output voltage precision : ±2.5%
¡ Built-in ON/OFF control function
¡ Built-in overcurrent protection, overheat protection
function
+0.3
4-1.4
-0
+0.2
-0.1
4-0.6
(1.5)
(0.5)
3-(2.54)
1● 2● 3● 4●
■ Applications
¡ Power supplies for various electronic equipment such as
personal computers
Internal connection diagram
1
2
4
1 DC input (VIN
)
2 DC output (V
O)
3 GND
Control circuit
4 ON/OFF control
terminal (V
C)
3
■ Absolute Maximum Ratings
(Ta=25˚C)
Parameter
Symbol
VIN
Rating
Unit
V
V
*1
*1
Input voltage
10
10
4.6
ON/OFF control terminal voltage
Output current
VC
IO
A
Power dissipation (No heat sink)
Power dissipation (With infinite heat sink)
Junction temperature
Operating temperature
Storage temperature
P
P
T
Topr
T
D1
1.8
18
150
W
D2
*2
j
˚C
˚C
˚C
-20 to +80
-40 to +150
stg
8 Soldering temperature
Tsol
260 (For 10s.) ˚C
*1
*2
All are open except GND and applicable terminals.
Overheat protection may operate at 125=<T =<150˚C.
j
· 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
PQ3RF43
■ Electrical Characteristics
(Unless otherwise specified, conditions shall be VIN=5V,I =2.0A,Ta=25˚C)
O
Parameter
Output voltage
Load regulation
Line regulation
Temperature coefficient of output voltage
Ripple rejection
Symbol
Conditions
-
I =5mA to 4.6A
IN=4 to 10V
=0 to 125˚C
NIN.
TYP.
MAX.
3.382
2.0
2.5
-
Unit
V
%
VO
3.218
-
-
-
45
-
-
2.0
-
-
-
3.3
0.5
0.5
±0.02
55
-
-
-
-
O
Reg
L
V
Reg
I
%
T
j
TCVO
%/˚C
dB
V
V
V
µA
V
mA
mA
-
RR
-
Dropout voltage (1)
Dropout voltage (2)
*3, I
*3, I
O
=4.0A
=4.6A
V
i
-O(1)
0.5
1.0
-
O
Vi
-O(2)
*4
ON-state voltage for control
ON-state current for control
OFF-state voltage for control
OFF-state current for control
Quiescent current
-
-
VC (ON)
VC
=2.7V
IC (ON)
20
VC (OFF)
-
-
-
0.8
- 0.4
17
VC
=0.4V
IC (OFF)
IO=0A
Iq
-
*3
*4
Input voltage shall be the value when output voltage is 95% in comparison with the initial value.
In case of opening control terminal4, output voltage turns on.
Fig.2 Test Circuit for Ripple Rejection
Fig.1 Test Circuit
VIN
47µF
VO
+
47µF
1●
2●
4●
1●
2●
4●
IO
V
C
IO
A
f=120Hz (sine wave)
~
e
i
+
e
i
=0.5Vrms
=0.5A
RR=20 log (e
+
3●
V
A
3●
V
L
eo
R
IO
~
0.33µF
0.33µF
R
L
i/eo)
VC
A
VIN
I
q
IC
Fig.4 Overcurrent Protection
Characteristics(Typical Value)
Fig.3 Power Dissipation vs. Ambient
Temperature
20
100
P
D2
80
15
10
5
60
40
P
P
D1 :No heat sink
D2 :With infinite heat sink
20
0
P
D1
0
-20
0
20
40
60
80
0
2.0
4.0
6.0
8.0
(A)
10.0
Ambient temperature T
a
(˚C)
Output current I
O
Note)
Oblique line portion:Overheat protection may
operate in this area.
Low Power-Loss Voltage Regulators
PQ3RF43
Fig.5 Output Voltage Deviation vs.
Fig. 6 Output Voltage vs. Input Voltage
Junction Temperature
5
4
Ta =25˚C
VIN=5V
4
3
2
1
IO
=2A
3
RL=1.65Ω
RL=∞
RL=0.72Ω
2
1
0
0
-1
-2
-3
-4
-5
-25
0
1
2
3
4
5
0
25
50
75
100 125
(˚C)
Junction temperature T
j
Input voltage VIN (V)
Fig. 7 Circuit Operating Current vs. Input
Voltage
Fig.8 Dropout Voltage vs. Junction
Temperature
1.0
Ta =25˚C
120
V
IN =0.95V
O
0.8
100
0.6
0.4
I
O
O
=4.6A
=4A
R
L
=0.72Ω
50
0
R
L
=1.65Ω
I
0.2
0
R =∞
L
0
1
2
3
4
5
-25
0
25
50
75
100 125
j (˚C)
Input voltage VIN (V)
Junction temperature T
Fig.9 Quiescent Current vs. Junction
Fig.10 Input Ripple Frequency vs. Ripple
Temperature
Rejection
20
100
V
IN =5V
=0A
18
16
14
12
I
O
80
60
40
10
8
6
4
2
0
V
IN=5V
Io=0.5A
Vo=3.3A
20
0
ei
=0.5Vrms
,
R
1
=2kΩ
0.1
1
10
100
-25
0
25
50
75
100 125
j (˚C)
Input ripple frequency f (kHz)
Junction temperature T
Low Power-Loss Voltage Regulators
PQ3RF43
■ Typical Application
DC input
VO
1●
2●
Specific IC
4
●
+
3●
0.33µF
CO
High or Open :output ON
Low :output OFF
ON/OFF Control
相关型号：
©2020 ICPDF网 联系我们和版权申明