PQ20VZ5U 데이터 시트보기 (PDF) - Sharp Electronics
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PQ20VZ5U Datasheet PDF : 7 Pages
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Low Power-Loss Voltage Regulators
Fig.3 Power Dissipation vs. Ambient
Temperature
10
PD : With infinite heat sink
5
0
–20 0 20 40 60 80 100
Ambient temperature Ta (˚C)
Note) Oblique line portion : Overheat protection may operate in this area.
Fig.5 Output Voltage Adjustment
Characteristics
20
R1=1kΩ
15
10
5
0
0.1
1
10
100
R2 (kΩ)
Fig.7 Output Voltage vs. Input Voltage
(PQ20VZ51)
16
R1=1kΩ ,R2=7kΩ
VC=2.7V , Ci=0.33µF , C0=47µF
14
Tj=25˚C
12
10
RL=∞
8
RL=40Ω
6
RL=20Ω
4
2
0
0 2 4 6 8 10 12 14 16
Input voltage VIN (V)
PQ20VZ51/PQ20VZ11
Fig.4 Overcurrent Protection
Characteristics (Typical Value)
100
80
PQ20VZ51
60
40
PQ20VZ11
20
0
0.5 1.0 1.5 2.0
Output current IO (A)
Fig.6 Reference Voltage Deviation
vs. Junction Temperature
6
5
4
VIN=12V, IO=5mA , VC=2.7V
R1=1kΩ ,R2=7kΩ
Ci=0.33µF, C0=47µF
3
2
1
0
–1
–2
–3
–4
–5
–6
–7
–8
–9
–25 0 25 50 75 100 125
Junction temperature Tj (˚C)
Fig.8 Output Voltage vs. Input Voltage
(PQ20VZ11)
16
R1=1kΩ ,R2=7kΩ
VC=2.7V , Ci=0.33µF , C0=47µF
14
Tj=25˚C
12
10
RL=∞
8
RL=20Ω
6
RL=10Ω
4
2
0
0 2 4 6 8 10 12 14 16
Input voltage VIN (V)
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