s-1135a13-u5t1g Seiko Instruments Inc., s-1135a13-u5t1g Datasheet - Page 24

• Manufacturer Part Number: s-1135a13-u5t1g
• Description: High Ripple-rejection Low Dropout Middle Output Current Cmos Voltage Regulator
• Manufacturer: Seiko Instruments Inc.

24
HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1135 Series
Precautions
• Wiring patterns for the VIN, VOUT and GND pins should be designed so that the impedance is low. When mounting
• Note that the output voltage may increase when a series regulator is used at low load current (1.0 mA or less).
• Note that the output voltage may increase due to the leakage current from a driver when a series regulator is used at
• Generally a series regulator may cause oscillation, depending on the selection of external parts. The following
• The voltage regulator may oscillate when the impedance of the power supply is high and the input capacitor is small
• If the output capacitance is small, power supply’s fluctuation and the characteristics of load fluctuation become worse.
• A momentary overshoot may be output when the power supply suddenly increases, and the output capacitance is
• The application conditions for the input voltage, output voltage, and load current should not exceed the package
• Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in electrostatic
• In determining the output current, attention should be paid to the output current value specified in Table 10 in “
• SII claims no responsibility for any disputes arising out of or in connection with any infringement by products including
an output capacitor between the VOUT and VSS pin (C
VSS pin (C
high temperature.
conditions are recommended for this IC. However, be sure to perform sufficient evaluation under the actual usage
conditions for selection, including evaluation of temperature characteristics. See “(5) Example of Equivalent Series
Resistance vs. Output Current Characteristics (Ta = 25°C)” in “
resistance (R
or an input capacitor is not connected.
Sufficiently evaluate the output voltage’s fluctuation with the actual device.
small. It is therefore important to sufficiently evaluate the output voltage at power application in actual device.
power dissipation.
protection circuit.
Electrical Characteristics” and footnote *5 of the table.
this IC of patents owned by a third party.
Input capacitor (C
Output capacitor (C
IN
), the distance from the capacitors to these pins should be as short as possible.
ESR
) of the output capacitor.
IN
) :
L
) :
1.0 µF or more
1.0 µF or more
Seiko Instruments Inc.
L
) and a capacitor for stabilizing the input between VIN and
Reference Data” for the equivalent series
Rev.1.1
_00