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IRU3034

Features: ·8-Pin SOIC switching controller with HICCUP current limiting reduces diode power dissipation to less than 1% of normal operation·Soft-Start capacitor allows for smooth output\ voltage ramp up·vOn-Board MOSFET Driver·Fastest transient response of any controller method. (0 to 100% Duty Cy...

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SeekIC No. : 004378832 Detail

IRU3034: Features: ·8-Pin SOIC switching controller with HICCUP current limiting reduces diode power dissipation to less than 1% of normal operation·Soft-Start capacitor allows for smooth output\ voltage ram...

IRU3034 Data Sheet

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Part Number:
IRU3034
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: 2024/12/26

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Product Details

Description



Features:

·8-Pin SOIC switching controller with HICCUP current limiting reduces diode power dissipation to less than 1% of normal operation
·Soft-Start capacitor allows for smooth output\ voltage ramp up
·vOn-Board MOSFET Driver
·Fastest transient response of any controller method. (0 to 100% Duty Cycle in 100ns)
·1% Internal Voltage Reference
·Internal Under-Voltage Lockout protects MOSFET during start-up


Application

·Dual supply low voltage processor applications, such as: P55C, CYRIX M2, POWER PC and AMD K6
·Simple 5V to 3.3V switcher for Pentium with AGP or Pentium II applications


Pinout

Connection Diagram


Specifications

V12 Supply Voltages .................................................. 20V
Fb Pin Voltages ...............................................-0.3V To 5V
Storage Temperature Range ........................-65 To 150°C
Operating Junction Temperature .....................0 To 150°C


Description

The IRU3034 IC provides a low cost switching controller with true short circuit protection all in a compact 8-pin surface mount package, providing a low cost switching solution for dual supply processor applications that require switching regulator for the 3.3V supply such as the applications with AGP on-board. Typically in these applications, a dual supply regulator converts 5V to 3.3V for I/O supply and a jumper programmable supply of 1.25V to 3.5V for CORE supply. The IC uses an internal regulator generated from the 12V supply to power the controller as well as the 12V supply to drive the power MOSFET, allowing a low cost N-channel MOSFET to be used. The IC also includes an error comparator for fast transient response, a precise voltage reference for setting the output voltage as well as a direct drive of the MOSFET for the minimum part count.




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