HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
S-L2980 Series
Rev.4.1_00
Standard Circuit
OUTPUT
INPUT
VIN
VOUT
*1
*2
CIN
CL
ON/OFF
VSS
GND
Single GND
*1. CIN is a capacitor used to stabilize input.
*2. A ceramic capacitor of 1.0 μF or more can be used for CL, 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 (CIN):
Input series resistance (RIN):
Output capacitor (CL):
0.47 μF or more
10 Ω or less
1.0 μF or more*1
Equivalent Series Resistance (ESR) for output capacitor: 10 Ω or less
*1. If the product whose output voltage is 1.7 V or less will be used, CL is 2.2 μF or more.
8
Seiko Instruments Inc.
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