S-1131 Datasheet, PDF (9/29 Pages) Seiko Instruments Inc – HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR

HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.3.0_01
S-1131 Series
„ Standard Circuit
Input
C_IN^*1
VIN VOUT
ON/OFF^*2
VSS
Output
C_L^*3
Single GND
GND
*1. C_IN is a capacitor for stabilizing the input.
*2. In case of product with shutdown function.
*3. A tantalum capacitor (2.2 µF or more) can be used.
Figure 11
Caution The above connection diagram and constant will not guarantee successful operation.
Perform thorough evaluation using the actual application to set the constant.
„ Application Conditions
Input capacitor (C_IN): 1.0 µF or more
Output capacitor (C_L): 2.2 µF or more (tantalum capacitor)
Caution A general series regulator may oscillate, depending on the external components selected.
Check that no oscillation occurs with the application using the above capacitor.
Seiko Instruments Inc.
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