SUPER-SMALL PACKAGE CMOS VOLTAGE REGULATOR
S-817 Series
Rev.3.0_00
VIN 10 V 4 V,IOUT 1 mA, C
1
=
L
F
µ
=
→
=
10 V
4 V
3 V
(0.02 V/div)
VOUT
TIME(50 s/div)
µ
Load dependencies of undershoot at power fluctuation CL dependencies of undershoot at power fluctuation
VIN=VOUT(S)+2 V→VOUT(S)1 V, CL=1 µF
VIN=VOUT(S)+2 V→VOUT(S)+1 V, IOUT=1 mA
0.5
0.4
0.3
0.2
0.1
0
1
0.8
0.6
0.4
0.2
0
2V
3V
5V
5V
3V
2V
0.01
0.1
1
10
1.E-07 1.E-06 1.E-05 1.E-04 1.E-03 1.E-02 1.E-01
IOUT(A)
CL(µF)
VDD dependencies of undershoot at power fluctuation “Ta” dependencies of undershoot at power fluctuation
VIN=VDD→VOUT(S)+1 V, IOUT=1 mA, CL=1 µF
0.1
0.08
0.06
0.04
0.02
0
VIN=VOUT(S)+2 V→VOUT(S)+1 V, IOUT=1 mA, CL=1 µF
0.1
2V
0.08
0.06
0.04
0.02
0
5V
3V
3V
2V
5V
-50
0
50
100
0
2
4
6
8
10
Ta(°C)
VDD(V)
28
Seiko Instruments Inc.
SII [ SEIKO INSTRUMENTS INC ]
