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參數(shù)資料
| 型號： | PQ30RV31 |
| 廠商： | SHARP ELECTRONICS CORP |
| 元件分類： | 可調(diào)正電壓單路輸出標(biāo)準(zhǔn)穩(wěn)壓器 |
| 英文描述： | 1.5 V-30 V ADJUSTABLE POSITIVE REGULATOR, PSFM4 |
| 封裝： | PLASTIC PACKAGE-4 |
| 文件頁數(shù)： | 2/5頁 |
| 文件大?。?/td> | 53K |
| 代理商： | PQ30RV31 |
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 125C,IO=5mA
3, IO=3A
3, IO=2A
IO=0
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
, Ta=25C)
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
Power
dissipation
P
D
(W)
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
20
40
60
80
100
Relative
output
voltage
(%)
Output current IO (A)
Note) Oblique line portion : Overheat protection may operate in this area.
V
A
V
A
VIN
Iq 390
IO
VO
RL
0.33
F
47
F
47
F
+
Vref
R2
R1
VIN
ei
eo
390
IO
RL
0.33
F
+
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
,Vref Nearly=1.25V]
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