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S814 Datasheet, PDF (10/32 Pages) Seiko Instruments Inc – LOW DROPOUT CMOS VOLTAGE REGULATOR | |||
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LOW DROPOUT CMOS VOLTAGE REGULATOR
S-814 Series
ï® Standard Circuit
Input
CIN*1
VIN
VOUT
VSS
Output
CL*2
Rev.3.1_00
Single GND
GND
*1. CIN is a capacitor used to stabilize input.
*2. In addition to a tantalum capacitor, a ceramic capacitor of 0.47 μF or more can be used in CL.
Figure 10
Caution The above connection diagram and constant will not guarantee successful operation.
Perform through evaluation using the actual application to set the constant.
ï® 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. Low ESR
ESR is the abbreviation for Equivalent Series Resistance. The low ESR output capacitor (CL) can be
used in the S-814 Series.
3. Output voltage (VOUT)
The accuracy of the output voltage is ensured at ±2.0% under the specified conditions*1 of input voltage,
output current, and temperature, which differ depending upon the product items.
*1. The condition differs depending upon each product.
Caution If you change the above conditions, the output voltage value may vary out of the
accuracy range of the output voltage. Refer to âï® Electrical Characteristicsâ and
âï® Characteristics (Typical Data)â for details.
4. Line regulation 1 (ÎVOUT1) and Line regulation 2 (ÎVOUT2)
Indicates the input voltage dependencies of output voltage. That is, the value shows how much the
output voltage changes due to a change in the input voltage with the output current remained unchanged.
5. Load regulation (ÎVOUT3)
Indicates the output current dependencies of output voltage. That is, the value shows how much the
output voltage changes due to a change in the output current with the input voltage remained unchanged.
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Seiko Instruments Inc.
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