pq20vz11 Sharp Microelectronics of the Americas, pq20vz11 Datasheet - Page 4

• Manufacturer Part Number: pq20vz11
• Description: Variable Output, Surface Mount Type Power-loss Voltage Regulators
• Manufacturer: Sharp Microelectronics of the Americas

Low Power-Loss Voltage Regulators
Fig.9 Dropout Voltage vs. Junction
Fig.11 Quiescent Current vs. Junction
Fig.13 Ripple Rejection vs. Output Current
0.30
0.25
0.20
0.15
0.10
0.05
100
90
80
70
60
50
40
30
20
10
5
4
3
2
1
0
0
-20
-20
0
Temperature (PQ20VZ51)
Temperature
(PQ20VZ51)
Junction temperature T
0.1
Junction temperature T
0
0
Output current I
20
25
0.2
40
T
V
R
R
e
f=120Hz (sine wave)
50
i
j
=0.5V
IN
1
2
=25˚C
=1k
=7k
60
=12V
0.3
I
I
I
I
I
O
O
O
O
O
=0.5A
=0.4A
=0.3A
=0.2A
=0.1A
75
rms
80 100 120
O
(A)
j
V
I
V
O
(˚C)
0.4
IN
C
j
=0A
100
=2.7V
(˚C)
=12V
125
0.5
Fig.12 Ripple Rejection vs. Input Ripple
Fig.14 Ripple Rejection vs. Output Current
Fig.10 Dropout Voltage vs. Junction
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
100
65
60
55
50
45
40
35
30
90
80
70
60
50
40
30
20
10
0.1
0
-20
T
V
R
R
Frequency
(PQ20VZ11)
Temperature (PQ20VZ11)
j
IN
1
2
=25˚C
=1k
=7k
=12V
Input ripple frequency f (kHz)
Junction temperature T
0
Output current I
I
e
RR=20log (e
20
PQ20VZ51
O
i
=0.5V
1
=0.3A
40
rms
PQ20VZ51/PQ20VZ11
0.5
T
V
R
R
e
f=120Hz(sine wave)
60
i
(sine wave)
j
=0.5V
IN
1
2
=25˚C
=1k
=7k
i
=12V
I
I
I
I
/e
O
O
O
O
10
O
80 100 120
0
=1.0A
=0.75A
=0.5A
=0.25A
PQ20VZ11
)
(A)
rms
j
(˚C)
100
1.0