Rev.1.2
LOW DROPOUT CMOS VOLTAGE REGULATOR
S-818 Series
Test Circuits
1.
2.
A
VIN
VOUT
VSS
A
VIN
VOUT
VSS
ON/OFF
V
ON/OFF
Set to
power ON
Set to
VIN or GND
3.
4.
A
VIN
VOUT
VSS
VIN
ON/OFF
VOUT
VSS
ON/OFF
V
A
V
RL
Set to
power ON
5.
VIN
VOUT
VSS
ON/ OFF
V
RL
Set to
power ON
Figure 4 Test Circuits
Standard Circuit
OUTPUT
INPUT
VIN
VOUT
In addition to a tantalum capacitor, a ceramic
capacitor of 2 µF or more can be used in CL.
CIN is a capacitor used to stabilize input. Use a
capacitor of 0.47 µF or more.
CL
CIN
VSS
GND
Single GND
Figure 5 Standard Circuit
Operating Conditions
Input capacitor (CIN)
Output capacitor (CL)
: 0.47 µF or more
: 2 µF or more
Equivalent Series Resistor (ESR) : 10 Ω or less
Input Series Resistor (RIN) : 10 Ω or less
Seiko Instruments Inc.
5
SII [ SEIKO INSTRUMENTS INC ]
