W83320S

Features: ·1.8V to 5V power stage input voltage·Providing +/-1.5% reference voltage·Power Good flag·Current limit without sense resistor·Soft start·Switching frequency from 100 kHz to 400 kHz·Tiny plastic SOP-14 packageApplication· DDR SDRAM and AGP core power for Desktop PC· Set-Top Boxes/ Home G...

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W83320S Picture
SeekIC No. : 004545164 Detail

W83320S: Features: ·1.8V to 5V power stage input voltage·Providing +/-1.5% reference voltage·Power Good flag·Current limit without sense resistor·Soft start·Switching frequency from 100 kHz to 400 kHz·Tiny p...

floor Price/Ceiling Price

Part Number:
W83320S
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/3/28

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Product Details

Description



Features:

·1.8V to 5V power stage input voltage
·Providing +/-1.5% reference voltage
·Power Good flag
·Current limit without sense resistor
·Soft start
·Switching frequency from 100 kHz to 400 kHz
·Tiny plastic SOP-14 package



Application

· DDR SDRAM and AGP core power for Desktop PC
· Set-Top Boxes/ Home Gateways
· Core Logic Regulators
· High-Efficiency Buck Regulation



Pinout

  Connection Diagram


Description

The W83320S is a high-speed, N-Channel synchronous buck regulator controller optimized for wide reference input range. The W83320S employs adjustable frequency ranging from 100 KHz to 400 KHz voltage-mode PWM control architecture. The regulator is biased from a 5V rail and the power for the high-side MOSFET can be supplied by a separate 12V rail or supplied from the internal charge pump.

A Current limit protection is implemented by monitoring the voltage drop across the switch ON resistance of the low-side MOSFET. This method can eliminate the requirement of extra current sensing resistor and avoids false trigger of OC protection when VIN varies efficiently. The adaptive non-overlapping MOSFET gate drivers help avoid potential shoot-through problems while maintaining high efficiency. All these together with Power-good flag, enable and soft start features make power sequencing easy.




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