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