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PQ7RV4 Datasheet(PDF) 2 Page - Sharp Electrionic Components

No. de Pieza. PQ7RV4
Descripción  Variable Output(1.5 to 7V), 4.6A Output Low Power-loss Voltage Regulator
Descarga  6 Pages
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Fabricante  SHARP [Sharp Electrionic Components]
Página de inicio  http://sharp-world.com/
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PQ7RV4 Datasheet(HTML) 2 Page - Sharp Electrionic Components

   
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Low Power-Loss Voltage Regulators
PQ7RV4
0
–20
0
PD1
PD2
PD1 :No heat sink
PD2 :With infinite heat sink
20
40
60
80
5
10
15
20
Ambient temperature Ta (˚C)
Parameter
Symbol
Conditions
Input voltage
Output voltage
Load regulation
Line regulation
Reference voltage
Temperature coefficient of reference voltage
Ripple rejection
Dropout voltage(1)
Dropout voltage(2)
Quiescent current
Unit
MAX.
TYP.
MIN.
3.0
1.5
1.225
45
0.5
0.5
1.25
±0.01
55
10.0
7.0
2.0
2.5
1.275
0.5
1.0
17
s Electrical Characteristics
❇4 Input voltage shall be the value when output voltage is 95% in comparison with the initial value.
(Unless otherwise specified, conditions shall be VIN=5V,VO=3.3V(R1=2k
Ω),Io=2.0A,Ta=25˚C)
VIN
VO
RegL
RegI
Vref
TCVref
RR
Vi-O(1)
Vi-O(2)
Iq
IO=5mA to 4.6A
VIN=4 to 10V
Tj=0 to125˚C
Refer to Fig. 2
❇4, IO=4.0A
❇4, IO=4.6A
IO=0A
V
V
%
%
V
%/˚C
dB
V
V
mA
Fig. 2 Test circuit for Ripple Rejection
Fig. 1 Test Circuit
Fig. 3 Power Dissipation vs. Ambient
Temperature
Fig. 4 Reference Voltage Deviation vs.
Junction Temperature
Note) Oblique line portion : Overheat protection may operate in this area.
–5
–25
0
25
50
75
100
125
–3
–1
1
3
–4
–2
0
2
4
VIN=5V
VO=3.3V
R1=2k
IO=2A
5
Junction temperature Tj (˚C)
V
A
V
V
A
VIN
Iq 2k
IO
VO
RL
0.33
µF
47
µF
47
µF
+
Vref
R2
R1
VIN
ei
eo
2k
IO
RL
0.33
µF
+
R2
R1
+
f=120Hz(sine wave)
ei(rms)=0.5V
VO=3V
VIN=5V(R1=2k
Ω)
IO=0.5A
RR=20 log(ei(rms)/eo(rms))
Vo=Vref✕(1+R2/R1)
[R1=2k
Ω,Vref Nearly=1.25V]
1
2
3
4
1
2
3
4


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