PQ15RW08 Просмотр технического описания (PDF) - Sharp Electronics
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PQ15RW08 Datasheet PDF : 4 Pages
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Low Power-Loss Voltage Regulators
PQ15RW08/PQ15RW11/PQ15RW21
s Electrical Characteristics (Unless otherwise specified, conditions shall be VIN=5V, Vo=3.3V(R1=2kΩ, R2=500Ω), Io=0.5A)(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
Symbol
VIN
Vo
RegL
RegI
RR
Vref
TcVref
Vi-o
Iq
Conditions
––
––
❇4
VIN=5 to 15V, Io=5mA
Refer to Fig. 2
––
Tj=0 to 125˚C
VIN=3.5V, ❇5
Io=0A
MIN.
3.5
3.0
––
––
45
2.574
––
––
––
TYP.
––
––
0.3
0.5
55
2.64
±0.01
––
––
MAX.
20
15
2.0
2.5
––
2.706
––
0.5
8
Unit
V
V
%
%
dB
V
%/˚C
V
mA
❇4 PQ15RW08: Io=5mA to 0.8A, PQ15RW11: Io=5mA to 1A, PQ15RW21: Io=5mA to 2A
❇5 PQ15RW08/PQ15RW11: Io=0.5A, PQ15RW21: Io=2A
Fig. 1 Test Circuit
VIN
0.33µF
1
2
47µF VO
R2
3
4
Vref
A Iq 2kΩ R1 V
A IO
+
V
RL
VO=Vref x
1+ ––R––2–
R1
[R1=2kΩ,Vref Nearly=2.64V]
Fig. 2 Test Circuit of Ripple Rejection
0.33µF
1
ei
VIN
2
3
4
R2
47µF +
R1
2kΩ
+
IO
V eo
RL
f=120Hz(sine wave)
ei(rms)=0.5V
IO=0.5A
RR=20 log(ei(rms)/eo(rms))
VIN=5V
VO=3.3V(R1=2kΩ)
Fig. 3 Power Dissipation vs. Ambient
Temperature (PQ15RW08)
20
PD1 :No heat sink
PD2 :With infinite heat sink
15
10
PD2
5
PD1
0
–20 0
50 80 100
150
Ambient temperature Ta (˚C)
Note) Oblique line portion : Overheat protection may operate in this area.
Fig. 4 Power Dissipation vs. Ambient
Temperature(PQ15RW11/21)
20
PD1 :No heat sink
PD2 :With infinite heat sink
PD2
;;; 15
10
;;; 5
;;; PD1
0
;;; –20 0
20 40 60 80
Ambient temperature Ta (˚C)
Note) Oblique line portion : Overheat protection may operate in this area.
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