HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.4.1_02
S-1131 Series
11
Explanation of Terms
1. Low dropout voltage regulator
This voltage regulator has the low dropout voltage due to its built-in low on-resistance transistor.
2. 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 the product.
Caution If the above conditions change, the output voltage value may vary and exceed the
accuracy range of the output voltage. Refer to " Electrical Characteristics" and "
Characteristics (Typical Data)" for details.
3. Line regulation
V
OUT1
V
IN
V
OUT
Indicates the dependency of the output voltage on the input voltage. That is, the value shows how much
the output voltage changes due to a change in the input voltage with the output current remaining
unchanged.
4. Load regulation (V
OUT2
)
Indicates the dependency of the output voltage on the output current. That is, the value shows how
much the output voltage changes due to a change in the output current with the input voltage remaining
unchanged.
5. Dropout voltage (V
drop
)
Indicates the difference between input voltage (V
IN1
) and the output voltage when; decreasing input
voltage (V
IN
) gradually until the output voltage has dropped out to the value of 98% of output voltage
(V
OUT3
), which is at V
IN
= V
OUT(S)
1.0 V.
V
drop
= V
IN1
(V
OUT3
0.98)
