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PQ30RV31 Datasheet(PDF) 2 Page - Sharp Electrionic Components

No. de Pieza. PQ30RV31
Descripción  Variable Output Low Power-Loss Voltage Regulator
Descarga  5 Pages
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Fabricante  SHARP [Sharp Electrionic Components]
Página de inicio  http://sharp-world.com/
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PQ30RV31 Datasheet(HTML) 2 Page - Sharp Electrionic Components

   
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Low Power-Loss Voltage Regulators
PQ30RV31
Parameter
Symbol
Conditions
VIN
VO
RegL
RegI
RR
Vref
TcVref
Vi-O
Iq
Input voltage
output voltage
Load regulation
Line regulation
Ripple rejection
Reference voltage
Temperature coefficient of reference voltage
Dropout voltage
Quiescent current
Unit
MAX.
TYP.
MIN.
4.5
1.5
45
1.225
IO=5mA to 3A
VIN=11 to 21V, IO=0.5mA
Refer to Fig. 2
Tj=0 to 125˚C,IO=5mA
❇3, IO=3A
❇3, IO=2A
IO=0
0.5
0.5
70
1.25
±1.0
0.3
0.2
35
30
2.0
2.5
1.275
1.0
0.5
7
s Electrical Characteristics
❇3 Input voltage shall be the value when output voltage is 95% in comparison with the initial value.
(Unless otherwise specified, condition shall be VIN=12V, Vo=10V, Io=1.5A, R1=390
Ω, Ta=25˚C)
V
V
%
%
dB
V
%/˚C
V
mA
Fig. 2 Test Circuit of Ripple Rejection
Fig. 1 Test Circuit
Fig. 4 Overcurrent Protection Characteristics
(Typical Value)
Fig. 3 Power Dissipation vs. Ambient
Temperature
0
10
20
30
40
0
50
100
150
PD2
PD1
Ambient temperature Ta (˚C)
PD1 :No heat sink
PD2 :With infinite heat sink
4.0 5.0 6.0 7.0 8.0
1.0 2.0 3.0
0
0
20
40
60
80
100
Output current IO (A)
Note) Oblique line portion : Overheat protection may operate in this area.
V
A
V
V
A
VIN
Iq 390
IO
VO
RL
0.33
µF
47
µF
47
µF
+
Vref
R2
R1
VIN
ei
eo
390
IO
RL
0.33
µF
+
R2
R1
+
IO=0.5A, VIN=12V, VO=10V
f=120Hz(sine wave)
ei(rms)=0.5Vrms
RR=20 log(ei(rms)/eo(rms))
1
2
3
4
1
2
3
4
VO=Vref
× 1+ –––––
R2
R1
[R1=390
Ω,Vref Nearly=1.25V]


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