S-817 Datasheet, PDF (12/50 Pages) Seiko Instruments Inc – SUPER-SMALL PACKAGE CMOS VOLTAGE REGULATOR

SUPER-SMALL PACKAGE CMOS VOLTAGE REGULATOR
S-817 Series
Rev.3.0_00
„ Explanation of Terms
1. Low ESR
ESR is the abbreviation for Equivalent Series Resistance.
Low ESR output capacitors (C_L) can be used in the S-817 Series.
2. Output voltage (VOUT)
The accuracy of the output voltage is ±2.0% guaranteed under the specified conditions for input voltage,
which differs depending upon the product items, output current, and temperature.
Caution If the above conditions change, the output voltage value may vary and go out of the
accuracy range of the output voltage. See the electrical characteristics and
characteristics data for details.
3. Line regulations 1 and 2 (∆VOUT1^, ∆VOUT2)
Indicate the input voltage dependencies of output voltage. That is, the values show how much the output
voltage changes due to a change in the input voltage with the output current remained unchanged.
4. Load regulation (∆VOUT3)
Indicates the output current dependencies of output voltage. That is, the values show how much the
output voltage changes due to a change in the output current with the input voltage remained unchanged.
5. Dropout voltage (V_drop)
Indicates a difference between input voltage (V_IN1) and output voltage when output voltage falls by 98% of
V_OUT(E) by gradually decreasing the input voltage (V_IN).
V_drop = V_IN1−[V_OUT(E) × 0.98]
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Seiko Instruments Inc.