PQ20RX05 데이터 시트보기 (PDF) - Sharp Electronics
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PQ20RX05
Sharp Electronics
PQ20RX05 Datasheet PDF : 6 Pages
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Low Power-Loss Voltage Regulators
PQ20RX05/PQ20RX11
s Electrical Characteristics
(Unless otherwise specified, VIN=5V, VO=3.3V, ❇4, R1=2kΩ, R2=500Ω, VC=2.7V, Ta=25˚C)
Parameter
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
Symbol
VIN
VO
RegL
RegI
RR
Vref
TCVref
Vi-O
Iq
VC(ON)
IC(ON)
VC(OFF)
IC(OFF)
Iqs
Conditions
––
––
❇5
VIN=4 to 10V, Io=5mA
Refer to Fig. 2
––
Tj=0 to 125˚C, Io=5mA
❇4,❇6
Io=0A
––
––
Io=0A
Io=0A, Vc=0.4V
Vc=0.4V
MIN. TYP. MAX. Unit
3.5
––
24
V
3.0
––
20
V
––
––
2.0
%
––
––
2.5
%
45
––
––
dB
2.574 2.64 2.706
V
––
±1.0
––
%
––
––
0.5
V
––
––
8
mA
2.0
––
––
V
––
––
200
µA
––
––
0.8
V
––
––
2.0
µA
––
––
5.0
µA
❇4 PQ20RX05: IO=0.3A, PQ20RX11: IO=0.5A
❇5 PQ20RX05: IO=5mA to 0.5A, PQ20RX11: 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 ON/OFF control terminal 2 , output voltage turns off.
Fig. 1 Test Circuit
Fig. 2 Test Circuit of Ripple Rejection
VIN
0.33µF
1
VC 2
A
3
R2
4
5
A Iq 2kΩ R1 V
47µF VO
A IO
+
V
RL
0.33µF
1
3
ei
2
5
4
VIN
2.7V
47µF +
R2
47µF +
R1
2kΩ
IO
V eo
RL
VO=Vref x
1+ ––R––2–
R1
[R1=2kΩ,Vref Nearly=2.64V]
Fig. 3 Power Dissipation vs. Ambient
Temperature (PQ20RX05)
20
PD1 :No heat sink
PD2 :With infinite heat sink
15
f=120Hz(sine wave)
ei(rms)=0.5V
IO=0.3A
RR=20 log(ei(rms)/eo(rms))
VIN=5V
VO=3.3V(R1=2kΩ)
Fig. 4 Power Dissipation vs. Ambient
Temperature (PQ20RX11)
20
PD1 :No heat sink
PD2 :With infinite heat sink
15
PD2
10
PD2
10
5
PD1
0
–20 0
50 80 100
150
Ambient temperature Ta (˚C)
Note) Oblique line portion : Overheat protection may operate in this area.
5
PD1
0
–25 0
50 80 100
150
Ambient temperature Ta (˚C)
Note) Oblique line portion : Overheat protection may operate in this area.
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