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PQ20WZ51 Datasheet(PDF) 2 Page - Sharp Electrionic Components

Part No. PQ20WZ51
Description  Variable Output, General Purpose, Surface Mount Type Power-Loss Voltage Regulator
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Maker  SHARP [Sharp Electrionic Components]
Homepage  http://sharp-world.com/
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PQ20WZ51 Datasheet(HTML) 2 Page - Sharp Electrionic Components

   
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Low Power-Loss Voltage Regulators
PQ20WZ51/PQ20WZ11
s Electrical Characteristics
Fig. 1 Test Circuit
Fig. 2 Test Circuit for Ripple Rejection
Fig. 4 Overcurrent Protection
Characteristics (Typical Value)
(PQ20WZ51)
Fig. 3 Power Dissipation vs. Ambient
Temperature
Parameter
Symbol
Conditions
VIN
Vo
RegL
RegI
RR
Vref
VcVref
Vi-o
Iq
Vc(ON)
Ic(ON)
Vc(OFF)
Ic(OFF)
Iqs
Unit
MAX.
TYP.
MIN.
3.5
3.0
––
––
45
2.574
––
––
––
2.0
––
––
––
––
––
––
❇5
VIN=4 to 10V, Io=5mA
Refer to Fig. 2
❇4
Tj=0 to 125˚C, Io=5mA
❇4, 6
Io=0A
––
––
Io=0A
Io=0A, Vc=0.4V
Io=0A, Vc=0.4V
––
––
––
––
60
2.64
±1.0
––
––
––
––
––
––
––
24
20
2.0
2.5
––
2.706
––
0.5
8
––
200
0.8
2.0
5.0
❇4 PQ20WZ51:Io=0.3A, PQ20WZ11:Io=0.5A
❇5 PQ20WZ51:Io=5mA to 0.5A, PQ20WZ11:Io=5mA to 1.0A
❇6 Input voltage shall be the value when output voltage is 95% in comparison with the initial value.
❇7 In case of opening control terminal
, output voltage turns off.
(Unless otherwise specified, conditions shall be VIN=5V, Vo=3.3V,❇4,R1=2k
Ω, R2=500Ω, Vc=2.7V, Ta=25˚C)
V
V
%
%
dB
V
%
V
mA
V
µA
V
µA
µA
Input voltage
Output voltage
Load regulation
Line regulation
Ripple rejection
Reference voltage
Temperature coefficient of Reference voltage
Dropout voltage
Quiescent current
❇7 ON-state voltage for control
ON-state current for control
OFF-state voltage for control
OFF-state current for control
Output OFF-state consumption current
2
0
–20
0
PD
PD:With infinite heat sink
80
50
100
150
5
10
8
Ambient temperature Ta (˚C)
0
0.5
1.0
1.5
2.0
4
3
2
1
0
Output current IO (A)
Vi–O =2V
Vi–O =3V
Vi–O =0.5V
VO=3.3V
Vi–O =1V
A
A
V
V
A
VIN
VC
Iq
Vref
IC
2k
IO
VO
RL
47
µF
0.33
µF
+
R2
R1
VO=Vref X 1+ –––––
R2
R1
[R1=2k
Ω,Vref Nearly =2.64V]
1
2
3
4
5
VC
47
µF
VIN
ei
2.7V
eo
2k
IO
RL
0.33
µF
+
R2
R1
f=120Hz(sine wave)
ei(rms)=0.5V
IO=0.3A
RR=20 log(ei(rms)/eo(rms))
VIN=5V
VO=3.3V(R1=2k
Ω)
1
2
3
4
5
V
Note) Oblique line portion : Overheat protection may operate in this area.


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