HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
S-L2980 Series
Rev.4.1
_00
Standard Circuit
INPUT
C
IN
*1
VIN
VOUT
C
L
*2
OUTPUT
ON/OFF
VSS
Single GND
GND
*1.
*2.
C
IN
is a capacitor used to stabilize input.
A ceramic capacitor of 1.0
μF
or more can be used for C
L
, provided that A ceramic capacitor of
2.2
μF
or more can be used for the product whose output voltage is 1.7 V or less.
Figure 9
Caution The above connection diagram and constant will not guarantees successful operation.
Perform through evaluation using the actual application to set the constant.
Application Conditions
Input capacitor (C
IN
):
Input series resistance (R
IN
):
Output capacitor (C
L
):
Equivalent Series Resistance (ESR) for output capacitor:
0.47
μF
or more
10
Ω
or less
1.0
μF
or more
*1
10
Ω
or less
*1.
If the product whose output voltage is 1.7 V or less will be used, C
L
is 2.2
μF
or more.
8
Seiko Instruments Inc.
SII [ SEIKO INSTRUMENTS INC ]
