POWER MONITORING OUTPUT, 5.5 V INPUT, 200 mA SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR WITH 260 nA QUIESCENT CURRENT

S-85S1P Series

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Precautions

• Mount external capacitors and inductors as close as possible to the IC, and make single GND.

• Characteristic ripple voltage and spike noise occur in the IC containing switching regulators. Moreover rush current

flows at the time of a power supply injection. Because these largely depend on the inductor, the capacitor and

impedance of power supply to be used, fully check them using an actually mounted model.

• The 10 μF capacitor connected between the VIN pin and the VSS pin is a bypass capacitor. It stabilizes the power

supply in the IC when application is used with a heavy load, and thus effectively works for stable switching

regulator operation. Allocate the bypass capacitor as close to the IC as possible, prioritized over other parts.

• Although the IC contains a static electricity protection circuit, static electricity or voltage that exceeds the limit of

the protection circuit should not be applied.

• The power dissipation of the IC greatly varies depending on the size and material of the board to be connected.

Perform sufficient evaluation using an actual application before designing.

• SII Semiconductor Corporation assumes no responsibility for the way in which this IC is used on products created

using this IC or for the specifications of that product, nor does SII Semiconductor Corporation assume any

responsibility for any infringement of patents or copyrights by products that include this IC either in Japan or in

other countries.