S1F78100Y2A Epson Electronics America, Inc., S1F78100Y2A Datasheet - Page 235

• Manufacturer Part Number: S1F78100Y2A
• Description: High Precision Voltage Regulators
• Manufacturer: Epson Electronics America, Inc.

S1F77200Y Series
SAMPLE CIRCUITS (S1F77210Y Series)
CR timer circuit
When the S1F77210Y circuit configured as shown in Figure 5-14, it can be used as a CR timer circuit.
Battery backup circuit
The following is an example of the supply voltage switching circuit for the battery backup supply configured featur-
ing the S1F77210Y series.
6–20
V
DD
S1F77210Y
Figure 5-15 Battery backup circuit
V
V
R
C
DD
SS
Figure 5-14 CR timer circuit
V
DD
V
O
V
DD
S1F77210Y
EPSON
PNP transistor
V
SS
V
O
NPN transistor
OUT
V
BAT
V
Enable signal
CC
Technical Manual
S1F70000 Series