PQ20WZ51 Datasheet, PDF (1/6 Pages) Sharp Electrionic Components – Variable Output, General Purpose, Surface Mount Type Power-Loss Voltage Regulator

Low Power-Loss Voltage Regulators
PQ20WZ51/PQ20WZ11
PQ20WZ51/PQ20WZ11
Variable Output, General Purpose, Surface Mount Type Low Power-Loss Voltage Regulator
s Features
q Low power-loss
(Dropout voltage : MAX. 0.5V)
q Surface mount package (equivalent to SC-63)
q Variable output voltage (3.0 to 20V)
q Output current (0.5A : PQ20WZ51)
(1.0A : PQ20WZ11)
q Reference voltage precision : ±2.5%
q Built-in ON/OFF control function
q Low dissipation current at OFF-state (Iqs : MAX. 5µA)
q Built-in overcurrent, overheat protection functions, ASO
protection circuit
q Available tape-packaged products
(ø330mm reel : 3 000 pcs., PQ20WZ5U/1U)
s Applications
q Personal computers
q CD-ROM drives
q Power supplies for various OA equipment
s Outline Dimensions
(Unit : mm)
6.6 MAX.
5.2 ± 0.5
3
2.3 ±0.5
( 0.5 )
Model No.
Epoxy resin
0.5±
0.2
0.1
4 – ( 1.27 )
( 0.5 )
12345
Internal connection diagram
1
3
1 DC input(VIN)
2 ON/OFF control terminal(Vc )
Specific IC
3 DC output(Vo )
4 Output voltage adjustment terminal(VADJ)
2
4
5 GND
5
Heat sink is common to terminal 3 (Vo )
s Absolute Maximum Ratings
Parameter
Symbol
❇1 _{Input voltage}
VIN
❇1 _{ON/OFF control terminal voltage Vc}
❇1 _{Output adjustment terminal voltage VADJ}
Output current
Io
Power dissipation(with infinite heat sink) PD
❇2 _{Junction temperature}
Tj
Operating temperature
Topr
Storage temperature
Tstg
❇3 _{Soldering temperature}
Tsol
❇1 _{All are open except GND and applicable terminals.}
❇2 Overheat protection may operate at 125<=Tj<=150˚C
❇3 For 10s
Rating
PQ20WZ51 PQ20WZ11
24
24
5
0.5
1.0
8
150
–20 to +80
–40 to +150
260
(Ta=25˚C)
Unit
V
V
V
A
W
˚C
˚C
˚C
˚C
• Please refer to the chapter " Handling Precautions ".
Notice 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 device specification sheets before using any SHARP device.
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