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參數(shù)資料
| 型號： | S818 |
| 廠商： | Seiko Instruments Inc. |
| 英文描述： | LOW DROPOUT CMOS VOLTAGE REGULATOR |
| 中文描述： | 低壓差型CMOS電壓穩(wěn)壓器 |
| 文件頁數(shù)： | 18/23頁 |
| 文件大?。?/td> | 366K |
| 代理商： | S818 |
LOW DROPOUT CMOS VOLTAGE REGULATOR
S-818 Series
Rev.1.2
18
Seiko Instruments Inc.
(4) Load fluctuation
I
OUT
=10
μ
A
→
30mA V
IN
=4V
TIME(50
μ
sec/div)
V
O
(
30mA
CL=4.7
μ
F
CL=2
μ
F
10
μ
A
3V
I
OUT
V
OUT
I
OUT
=30mA
→
10
μ
A V
IN
=4V
TIME(20msec/div)
V
O
(
30mA
CL=4.7
μ
F
CL=2
μ
F
10
μ
A
3V
I
OUT
V
OUT
Load current dependence of load fluctuation overshoot
I
OUT
shows larger load current at load current
fluctuation while smaller current is fixed to 10 μA.
For example
I
OUT
=1.E-02 (A) means load current
fluctuation from 10 mA to 10 μA.
Output capacitor (CL) dependence of overshoot
0.0
0.2
0.4
0.6
0.8
1.0
1.E-03
1.E-02
1.E-01
1.E+00
I
OUT
(A)
O
5V
3V
V
OUT
=2V
V
IN
=V
OUT
(S)+1V,CL=2
μ
F
0
0.05
0.1
0.15
0.2
1
10
100
CL(uF)
O
5V
3V
V
OUT
=2V
V
IN
=V
OUT
(S)+1V ,I
OUT
=30mA
→
10
μ
A
VDD dependence of overshoot
Temperature dependence of overshoot
0
0.1
0.2
0.3
0
2
4
6
8
10
VDD(V)
O
5V
3V
V
OUT
=2V
V
IN
=VDD, I
OUT
=30mA
→
10
μ
A ,CL=2
μ
F
0
0.05
0.1
0.15
0.2
0.25
0.3
-50
0
50
100
Ta(°C)
O
5V
3V
V
IN
=V
OUT
(S)+1V ,I
OUT
=30mA
→
10
μ
A
,
CL=2
μ
F
V
OUT
=2V
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