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參數(shù)資料
| 型號： | S-T111 |
| 英文描述： | Voltage Regulators |
| 中文描述： | 穩(wěn)壓器 |
| 文件頁數(shù)： | 8/22頁 |
| 文件大?。?/td> | 379K |
| 代理商： | S-T111 |
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR
S-T111 Series
Rev.1.2
_00
Explanation of Terms
8
Seiko Instruments Inc.
1. Low dropout voltage regulator
The low dropout voltage regulator is a voltage regulator whose dropout voltage is low due to its built-in
low on-resistance transistor.
2. Low ESR
A capacitor whose ESR (Equivalent Series Resistance) is low. The S-T111 Series enables use of a low
ESR capacitor, such as a ceramic capacitor, for the output-side capacitor C
L
. A capacitor whose ESR is
10
or less can be used.
3. Output voltage (V
OUT
)
The accuracy of the output voltage is ensured at
±
1.0% under the specified conditions of fixed input
voltage
*1
, fixed output current, and fixed temperature.
*1.
Differs depending on the product.
Caution If the above conditions change, the output voltage value may vary and exceed the
accuracy range of the output voltage. Please see the electrical characteristics and
attached characteristics data for details.
4.
V
V
V
regulation
Line
OUT
IN
OUT1
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.
5. Load regulation (
V
OUT2
)
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.
6. Dropout voltage (V
drop
)
Indicates the difference between the input voltage V
IN1
, which is the input voltage (V
IN
) at the point where
the output voltage has fallen to 98% of the output voltage value V
OUT3
after V
IN
was gradually decreased
from V
IN
=
V
OUT(S)
+
1.0 V, and the output voltage at that point (V
OUT3
×
0.98).
V
drop
=
V
IN1
(V
OUT3
×
0.98)
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