PQ05RD21 데이터 시트보기 (PDF) - Sharp Electronics
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PQ05RD21 Datasheet PDF : 7 Pages
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Low Power-Loss Voltage Regulators
Fig.17 Circuit Operating Current vs. Input
Voltage (PQ05RD21)
80
60
40
RL=2.5Ω
20
RL=5Ω
RL=∞Ω
0
0
5
10
Input voltage VIN (V)
Fig.19 Circuit Operating Current vs. Input
Voltage (PQ12RD21)
80
60
40
20
RL=6Ω
RL=12Ω
0
RL=∞Ω
0
5
10 15 20 25
Input voltage VIN (V)
Fig.21 Quiescent Current vs. Junction
Temperature
10
IO =0A
8
6
PQ12RD21 PQ09RD21
4
2 PQ05RD21 PQ3RD23
0
–25 0 25 50 75 100 125
Junction temperature Tj (˚C)
PQ05RD21 Series/PQ3RD23
Fig.18 Circuit Operating Current vs. Input
Voltage (PQ09RD21)
80
60
40
20
RL=4.5Ω
RL=9Ω
RL=∞Ω
0
0
5
10
15
Input voltage VIN (V)
Fig.20 Dropout Voltage vs. Junction
Temperature
0.5
PQ12RD21
0.4 PQ3RD23
0.3
PQ05RD21
0.2
PQ09RD21
0.1
0
–25 0 25 50 75 100 125
Junction temperature Tj (˚C)
Fig.22 Ripple Rejection vs. Input Ripple
Frequency
80
PQ3RD23(VIN=5V)
70
60
PQ12RD21(VIN=14V)
50
PQ09RD21(VIN=11V)
40
PQ05RD21(VIN=7V)
30
20
10
IO =0.5A, ei(rms)=0.5V
0
0.1
1
10
100
Input ripple frequency f (kHz)
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