AUTOMOTIVE, 125°C OPERATION, 36 V INPUT, 250 mA VOLTAGE REGULATOR
S-19212B/DxxA Series
Rev.5.3_00
Explanation of Terms
1. Low dropout voltage regulator
This is a voltage regulator which made dropout voltage small by its built-in low on-resistance output transistor.
2. Output voltage (VOUT
)
This voltage is output at an accuracy of 2.0% when the input voltage, the output current and the temperature are
in a certain condition*1.
*1. Differs depending on the product.
Caution If the certain condition is not satisfied, the output voltage may exceed the accuracy range of 2.0%.
Refer to " Electrical Characteristics" and " Characteristics (Typical Data)" for details.
ΔVOUT1
ΔVIN • VOUT
3. Line regulation
Indicates the dependency of the output voltage against the input voltage. That is, the value shows how much the
output voltage changes due to a change in the input voltage after fixing output current constant.
4. Load regulation (ΔVOUT2
)
Indicates the dependency of the output voltage against the output current. That is, the value shows how much the
output voltage changes due to a change in the output current after fixing input voltage constant.
5. Dropout voltage (Vdrop
)
Indicates the difference between input voltage (VIN1) and the output voltage when the output voltage becomes 98%
of the output voltage value (VOUT3) at VIN = VOUT(S) + 2.0 V after the input voltage (VIN) is decreased gradually.
Vdrop = VIN1 − (VOUT3 × 0.98)
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ABLIC [ ABLIC ]
