參數(shù)資料
型號: PQ20WZ51SERIES
英文描述: LOW POWER-LOSS VOLTAGE REGULATOR
中文描述: 低功率損耗的電壓調(diào)節(jié)器
文件頁數(shù): 4/6頁
文件大?。?/td> 81K
代理商: PQ20WZ51SERIES
Low Power-Loss Voltage Regulators
PQ20WZ51/PQ20WZ11
Fig.11 Dropout Voltage vs. Junction
Temperature (PQ20WZ11)
0.18
Fig.12 Quiescent Current vs. Junction
Temperature
5
Fig.13 Ripple Rejection vs. Input Ripple
Frequency
80
Fig.14 Ripple Rejection vs. Output Current
(PQ20WZ51)
80
Fig.15 Ripple Rejection vs. Output Current
(PQ20WZ11)
80
Junction temperature T
j
(
C)
D
i
O
(
25
0
25
50
75
100
125
0.11
0.1
0.12
0.13
0.14
0.15
0.16
0.17
V
IN
=3.135V, Vc=2.7V, R
1
=2k
, R
2
=500
, I
O
=0.5A
Junction temperature T
j
(
C)
Q
q
(
0
25
50
75
100
125
25
0
1
2
3
4
V
IN
=5V
I
O
=0A
V
C
=2.7V
R
1
=2k
R
2
=500
T
j
=25
C
V
IN
=5V
R
1
=2k
R
2
=0.5k
RR=20 log(e
i(rms)
/e
o(rms)
)
I
O
=0.3A
e
(sine wave)
R
Input ripple frequency f
(kHz)
0.1
1
10
100
45
40
50
55
60
65
70
75
PQ20WZ11
PQ20WZ51
T
j
=25
C
V
IN
=5V
R
1
=2k
R
=0.5k
e
i(rms)
=0.5V
f=120Hz (sine wave)
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Output current I
O
(A)
R
45
40
50
55
60
65
70
75
T
j
=25
C
V
IN
=5V
R
1
=2k
R
=0.5k
e
i(rms)
=0.5V
f=120Hz (sine wave)
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Output current I
O
(A)
R
45
40
50
55
60
65
70
75
Fig.16 Circuit Operating Current vs. Input
Voltage (PQ20WZ51)
20
C
B
(
0
1
2
3
4
5
6
15
10
5
0
Input voltage V
IN
(V)
R
L
=6.6
R
L
=11
R
L
=
Vc=2.7V,
R
1
=2k
, R
2
=500
(Vo=3.3V)
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