s-8337aaca-t8t1g Seiko Instruments Inc., s-8337aaca-t8t1g Datasheet - Page 22

• Manufacturer Part Number: s-8337aaca-t8t1g
• Description: Step-up, 1.2 Mhz High-frequency, Pwm Control Switching Regulator Controller
• Manufacturer: Seiko Instruments Inc.

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STEP-UP, 1.2 MHz HIGH-FREQUENCY, PWM CONTROL SWITCHING REGULATOR CONTROLLER
S-8337/8338 Series
Precaution
• Mount external capacitors, diodes, and inductor as close as possible to the IC.
• Characteristics ripple voltage and spike noise occur in IC containing switching regulators. Moreover
• Make sure the dissipation of the switching transistor (especially at a high temperature) does not exceed
• The performance of a switching regulator varies depending on the design of the PCB patterns,
• This IC builds in soft start function, starts reference voltage gradually, and it is controlled so that FB pin
• Although the IC contains a static electricity protection circuit, static electricity or voltage that exceeds
• Seiko Instruments Inc. assumes no responsibility for the way in which this IC is used on products
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 used, fully check them using an actually mounted model.
the allowable power dissipation of the package.
peripheral circuits, and external parts. Thoroughly test all settings with your device.
voltage and reference voltage become this potential. Therefore, keep in mind that it will be in a
maximum duty state according to the factor of IC exterior if FB pin voltage is held less than reference
voltage.
the limit of the protection circuit should not be applied.
created using this IC or for the specifications of that product, nor does Seiko Instruments Inc. assume
any responsibility for any infringement of patents or copyrights by products that include this IC either in
Japan or in other countries.
Seiko Instruments Inc.
Rev.3.1
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