S-818 SII [Seiko Instruments Inc], S-818 Datasheet - Page 19

• Manufacturer Part Number: S-818
• Description: LOW DROPOUT CMOS VOLTAGE REGULATOR
• Manufacturer: SII [Seiko Instruments Inc]

Rev.1.2
1.0
0.8
0.6
0.4
0.2
0.0
0.4
0.3
0.2
0.1
0
1.E-03
Load current dependence of load fluctuation undershoot
0
V
V
IN
IN
VDD dependence of undershoot
=V
=VDD, I
fluctuation from 10 µA to 10 mA.
fluctuation while smaller current is fixed to 10 µA.
For example I
I
OUT
OUT
2
(S)+1V,
shows
1.E-02
V
OUT
OUT
=10 A 30mA,CL=2 F
4
=2V
VDD(V)
larger load current at load current
3V
CL=2 F
OUT
I
OUT
3V
=1.E-02 (A) means load current
(A)
6
1.E-01
V
OUT
5V
=2V
8
5V
Seiko Instruments Inc.
1.E+00
10
LOW DROPOUT CMOS VOLTAGE REGULATOR
0.5
0.4
0.3
0.2
0.1
0.4
0.3
0.2
0.1
Output capacitor (CL) dependence of undershoot
0
0
V
-50
IN
1
Temperature dependence of undershoot
V
=V
IN
OUT
=V
V
5V
OUT
OUT
(S)+1V ,I
=2V
(S)+1V ,I
V
OUT
0
=2V
3V
OUT
Ta(°C)
CL(uF)
OUT
=10 A 30mA CL 2 F
10
3V
=10 A 30mA
5V
50
S-818 Series
100
100
19