S-1200 Seiko Instruments, S-1200 Datasheet - Page 11

• Manufacturer Part Number: S-1200
• Description: HIGH RIPPLE-REJECTION LOW DROPOUT LOW INPUT-AND-OUTPUT CAPACITANCE CMOS VOLTAGE REGULATOR
• Manufacturer: Seiko Instruments

www.DataSheet4U.com
Rev.3.2
Explanation of Terms
1. Low dropout voltage regulator
2. Low ESR
3. Output voltage (V
4. Line regulation
5. Load regulation (∆V
6. Dropout voltage (V
The low dropout voltage regulator is a voltage regulator whose dropout voltage is low due to its built-in
low on-resistance transistor.
A capacitor whose ESR (Equivalent Series Resistance) is low. The S-1200 Series enables use of a low
ESR capacitor, such as a ceramic capacitor, for the output-side capacitor C
1.0 Ω or less can be used.
The accuracy of the output voltage is ensured at ±1.0% under the specified conditions of fixed input
voltage
*1. Differs depending on 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
drop
_00
HIGH RIPPLE-REJECTION LOW DROPOUT LOW INPUT-AND-OUTPUT CAPACITANCE CMOS VOLTAGE REGULATOR
= V
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




∆V
+ 1.0 V, and the output voltage at that point (V
OUT
drop
∆V
× 0.98)
OUT2
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
S-1200 Series
11