S-1317 Series

13



Precautions

• Generally, when a voltage regulator is used under the condition that the load current value is small (1 μA or less), the

output voltage may increase due to the leakage current of an output transistor.

• Generally, when a voltage regulator is used under the condition that the temperature is high, the output voltage may

increase due to the leakage current of an output transistor.

• Generally, when a voltage regulator is used under the condition that the impedance of the power supply is high, an

oscillation may occur. Perform thorough evaluation including the temperature characteristics with an actual application

• Generally, in a voltage regulator, an oscillation may occur depending on the selection of the external parts. The

following use conditions are recommended in the S-1317 Series, however, perform thorough evaluation including the

A ceramic capacitor with capacitance of 1.0

μF or more is recommended.

A ceramic capacitor with capacitance of 1.0

μF to 100 μF is recommended.

• Generally, in a voltage regulator, the values of an overshoot and an undershoot in the output voltage vary depending

on the variation factors of input voltage start-up, input voltage fluctuation and load fluctuation etc., or the capacitance of

• Generally, in a voltage regulator, if the VOUT pin is steeply shorted with GND, a negative voltage exceeding the

absolute maximum ratings may occur in the VOUT pin due to resonance phenomenon of the inductance and the

series resistor into the resonance path, and the negative voltage is expected to be limited by inserting a protection

diode between the VOUT pin and the VSS pin.

• Make sure of the conditions for the input voltage, output voltage and the load current so that the internal loss does not

exceed the power dissipation.

• Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in electrostatic

protection circuit.

• When considering the output current value that the IC is able to output, make sure of the output current value specified

in Table 7 in " Electrical Characteristics" and footnote *5 of the table.

• Wiring patterns on the application related to the VIN pin, the VOUT pin and the VSS pin should be designed so that the

VSS pin, connect the capacitors as close as possible to the respective destination pins of the IC.

• In the package equipped with heat sink of backside, mount the heat sink firmly. Since the heat radiation differs

according to the condition of the application, perform thorough evaluation with an actual application to confirm no

problems happen.

• SII Semiconductor Corporation claims no responsibility for any disputes arising out of or in connection with any

infringement by products including this IC of patents owned by a third party.