S-1323 SII [Seiko Instruments Inc], S-1323 Datasheet - Page 10

• Manufacturer Part Number: S-1323
• Description: HIGH RIPPLE-REJECTION AND SMALL PACKAGE CMOS VOLTAGE REGULATOR
• Manufacturer: SII [Seiko Instruments Inc]

10
HIGH RIPPLE-REJECTION AND SMALL PACKAGE CMOS VOLTAGE REGULATOR
S-1323 Series
Explanation of Terms
1. Low dropout voltage regulator
2. Low ESR
3. Output voltage (V
4.
5. Load regulation (∆V
6. Dropout voltage (V
A capacitor whose ESR (Equivalent Series Resistance) is low. The S-1323 Series enables use of a low
ESR capacitor, such as a ceramic capacitor, for the output-side capacitor C
10 Ω or less can be used.
The low dropout voltage regulator is a voltage regulator whose dropout voltage is low due to its built-in
low on-resistance transistor.
The accuracy of the output voltage is ensured at ±1.0% under the specified conditions of fixed input
voltage
*1. Differs depending the product.
Caution If the above conditions change, the output voltage value may vary and exceed the
Indicates the dependency of the output voltage on the input voltage. That is, the values show how much
the output voltage changes due to a change in the input voltage with the output current remaining
unchanged.
Indicates the dependency of the output voltage on the output current. That is, the values show how
much the output voltage changes due to a change in the output current with the input voltage remaining
unchanged.
Indicates the difference between the input voltage V
the output voltage has fallen to 98% of the output voltage value V
from V
V
Line
drop
= V
regulation
IN
*1
IN1
, fixed output current, and fixed temperature.
= V
accuracy range of the output voltage. Please see the electrical characteristics and
attached characteristics data for details.
− (V
OUT(S)
OUT3
+ 1.0 V, and the output voltage at that point (V
OUT




drop
× 0.98)
OUT2
∆V
)
)
∆V
)
IN
OUT1
•
V
OUT




Seiko Instruments Inc.
IN1
, which is the input voltage (V
OUT3
OUT3
× 0.98).
after V
L
. A capacitor whose ESR is
IN
was gradually decreased
IN
) at the point where
Rev.4.2
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