PQ20VZ11 Просмотр технического описания (PDF) - Sharp Electronics
Номер в каталоге
Компоненты Описание
производитель
PQ20VZ11 Datasheet PDF : 7 Pages
| |||
Low Power-Loss Voltage Regulators
Fig.9 Dropout Voltage vs. Junction
Temperature (PQ20VZ51)
0.30
IO=0.5A
0.25
0.20
IO=0.4A
0.15
IO=0.3A
IO=0.2A
0.10
IO=0.1A
0.05
0
–20 0 20 40 60 80 100 120
Junction temperature Tj (˚C)
Fig.11 Quiescent Current vs. Junction
Temperature
5
VIN=12V
IO=0A
4
VC=2.7V
3
2
1
0
–20 0 25 50 75 100 125
Junction temperature Tj (˚C)
Fig.13 Ripple Rejection vs. Output Current
(PQ20VZ51)
100
Tj=25˚C
90
VIN=12V
80
R1=1kΩ
R2=7kΩ
70
ei(rms)=0.5V
f=120Hz (sine wave)
60
50
40
30
20
10
0 0.1 0.2 0.3 0.4 0.5
Output current IO (A)
PQ20VZ51/PQ20VZ11
Fig.10 Dropout Voltage vs. Junction
Temperature (PQ20VZ11)
0.40
0.35
IO=1.0A
0.30
0.25
IO=0.75A
0.20
IO=0.5A
0.15
0.10
IO=0.25A
0.05
–20 0 20 40 60 80 100 120
Junction temperature Tj (˚C)
Fig.12 Ripple Rejection vs. Input Ripple
Frequency
65
60
PQ20VZ11
55
50
PQ20VZ51
45
40
Tj=25˚C IO=0.3A
35 VIN=12V ei(rms)=0.5V (sine wave)
R1=1kΩ RR=20 log(ei(rms)/eo(rms))
30 R2=7kΩ
0.1
1
10
100
Input ripple frequency f (kHz)
Fig.14 Ripple Rejection vs. Output Current
(PQ20VZ11)
100
Tj=25˚C
90
VIN=12V
80
R1=1kΩ
R2=7kΩ
70
ei(rms)=0.5V
f=120Hz(sine wave)
60
50
40
30
20
10
0
0.5
1.0
Output current IO (A)
Share Link: 