PQ20WZ51 Ver la hoja de datos (PDF) - Sharp Electronics
Número de pieza
componentes Descripción
Fabricante
PQ20WZ51
Sharp Electronics
PQ20WZ51 Datasheet PDF : 6 Pages
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Low Power-Loss Voltage Regulators
Fig. 5 Overcurrent Protection
Characteristics (Typical Value)
(PQ20WZ11)
4
VO=3.3V
Vi–O =0.5V
3
Vi–O =1V
Vi–O =2V
2
Vi–O =3V
1
0
0
0.5
1.0
1.5
2.0
Output current IO (A)
Fig. 7 Reference Voltage Deviation vs.
Junction Temperature (Typical Value)
25
VIN=7V
20 VO=3.3V(R1=2kΩ,R2=0.5kΩ)
15 IO=0.3A (PQ20WZ51)
=0.5A (PQ20WZ11)
10
5
0
PQ20WZ11
–5
–10
–15
PQ20WZ51
–20
–25
–25 0 25 50 75 100 125
Junction temperature Tj (˚C)
Fig. 9 Output Voltage vs. Input Voltage
(PQ20WZ11)
8
R1=2kΩ ,R2=0.5kΩ
VC=2.7V , Ci=0.33µF , C0=47µF
7
Tj=25˚C
6
5
4
3
RL=∞Ω
2
RL=6.6Ω
1
RL=3.3Ω
0
012345678
Input voltage VIN (V)
PQ20WZ51/PQ20WZ11
Fig. 6 Output Voltage Adjustment
Characteristics
20
R1=2kΩ
15
10
5
0
0.1
1
10
100
R2 (kΩ)
Fig. 8 Output Voltage vs. Input Voltage
(PQ20WZ51)
8
R1=2kΩ ,R2=0.5kΩ
VC=2.7V , Ci=0.33µF , C0=47µF
7
Tj=25˚C
6
5
4
RL=∞Ω
3
2
RL=11Ω
1
RL=6.6Ω
0
012345678
Input voltage VIN (V)
Fig.10 Dropout Voltage vs. Junction
Temperature (PQ20WZ51)
0.2
VIN=3.135V, Vc=2.7V, R1=2kΩ, R2=500Ω, IO=0.3A
0.19
0.18
0.17
0.16
0.15
0.14
0.13
0.12
0.11
0.1
–25
0 25 50 75 100 125
Junction temperature Tj (˚C)
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