SUPER-SMALL PACKAGE CMOS VOLTAGE REGULATOR
S-817 Series
Rev.4.2_00
1. 4 Load fluctuation S-817A30A/S-817B30A (when using a ceramic capacitor, CL=1 µF)
IOUT=30 mA→10 µA,V IN=5 V, CL=1 µF
30 mA
10 µA
VOUT
(0.2 V/div)
3 V
TIME(20 ms/div)
Load current dependencies of overshoot at load
fluctuation
CL dependencies of overshoot at load fluctuation
VIN=VOUT(S)+2 V, IOUT=IL→ 10 µA, CL=1 µF
VIN=VOUT(S)+2 V, IOUT=10 mA→10 µA
2
1
0.8
0.6
0.4
0.2
0
2V
5V
1.5
3V
5V
2V
3V
1
0.5
0
0.01
0.1
1
10
1.E-05 1.E-04 1.E-03 1.E-02 1.E-01 1.E+00
IOUT(A)
CL(µF)
VDD dependencies of overshoot at load fluctuation
“Ta” dependencies of overshoot at load fluctuation
VIN=VDD, IOUT=10 mA,→10 µA, CL=1 µF
0.2
VIN=VOUT(S)+2 V, IOUT=10 mA→10 µA, CL=1 µF
0.2
5V
2V
5V
0.15
0.15
0.1
0.05
0
0.1
3V
3V
2V
0.05
0
-50
0
50
100
0
2
4
6
8
10
Ta(°C)
VDD(V)
29
Seiko Instruments Inc.
SII [ SEIKO INSTRUMENTS INC ]
