S-814 SII [Seiko Instruments Inc], S-814 Datasheet - Page 20

• Manufacturer Part Number: S-814
• Description: LOW DROPOUT CMOS VOLTAGE REGULATOR
• Manufacturer: SII [Seiko Instruments Inc]

1. Transient Response Characteristics (S-814A30A, Typical data, Ta=25°C)
20
LOW DROPOUT CMOS VOLTAGE REGULATOR
S-814 Series
1-1. At power on
Output voltage (V
Load dependencies of overshoot
V
Reference Data
DD
dependencies of overshoot
Output volatage
Input voltage
Load current
10 V
1.0
0.8
0.6
0.4
0.2
0 V
0 V
0.8
0.6
0.4
0.2
1.E−05 1.E−04 1.E−03 1.E−02 1.E−01 1.E+00
0
0
or
0
V
V
V
V
IN
OUT
IN
V
IN
=0→V
OUT
=0→V
OUT
2
=2 V
3 V
) – Time (t)
DD
OUT(S)
, I
OUT
4
I
3 V 5 V
t [50 μs/div]
V
OUT
DD
V
+1 V, C
V
=30 mA, C
OUT
IN
[A]
[V]
=0→10 V, I
=2 V
6
C
C
L
=4.7 μF
L
L
=1 μF
=1 μF
5 V
8
L
=1 μF
OUT
Seiko Instruments Inc.
Overshoot
=30 mA
10
C
Temperature dependencies of overshoot
L
dependencies of overshoot
V
1.0
0.8
0.6
0.4
0.2
IN
1.0
0.8
0.6
0.4
0.2
0
0.1
=0→V
0
−50
V
OUT
OUT(S)
V
V
=2 V
OUT
IN
=0→V
+1 V, I
=2 V
1
3 V
0
C
3 V
Ta [°C]
OUT(S)
L
OUT
[uF]
5 V
+1 V, I
=30 mA, C
50
10
OUT
5 V
Undershoot
=30 mA
Rev.2.1
L
=1 μF
100
100
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