Low Power-Loss Voltage Regulators
PQ3RF43
PQ3RF43
3.3V/4.6V Output Low Power-Loss Voltage Regulator
s
Features
隆Low
power-loss
(Dropout voltage : MAX.0.5V at Io = 4.0A)
(Dropout voltage : MAX.1.0V at Io = 4.6A)
隆Compact
resin full-mold package (TO-220 package)
隆3.3V/4.6A
output type
隆High-precision
output voltage type
Output voltage precision :
鹵2.5%
隆Built-in
ON/OFF control function
隆Built-in
overcurrent protection, overheat protection
function
29.1MAX
7.4鹵0.2
s
Outline Dimensions
10.2MAX
3.6鹵0.2
(Unit : mm)
4.5鹵0.2
2.8鹵0.2
4.8MAX
PQ3RF43
4-1.4
13.5MIN
+0.3
-0
4-0.6
+0.2
-0.1
(1.5)
3-(2.54)
(0.5)
s
Applications
隆Power
supplies for various electronic equipment such as
personal computers
1 2 3 4
q q q q
Internal connection diagram
1
Control circuit
2
4
1
DC input (V
IN
)
2
DC output (V
O
)
3
GND
4
ON/OFF control
terminal (V
C
)
3
s
Absolute Maximum Ratings
Parameter
*1
*1
(T
a
=25藲C)
Symbol
V
IN
V
C
I
O
P
D1
P
D2
T
j
T
opr
T
stg
T
sol
Rating
Unit
10
V
10
V
4.6
A
1.8
W
18
150
藲C
-20 to +80
藲C
-40 to +150
藲C
260 (For 10s.) 藲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
8 Soldering temperature
*1
*2
All are open except GND and applicable terminals.
Overheat protection may operate at 125=<T
j
=<150藲C.
路 Please refer to the chapter鈥?Handling Precautions 鈥?
鈥?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. 鈥?/div>
15.6鹵0.5
蠁3.2鹵0.1
1
2
3
4
