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IRU3033Z, IRU3034, IRU3034CS

Table of contents:
Info of IRU3033Z
Info of IRU3034
Info of IRU3034CS

IRU3033Z, IRU3034, IRU3034CS Selling Leads, Datasheet

MFG:International Rectifier Category:Integrated Circuits (ICs) Package Cooled:SOP-8 D/C:2003

IRU3033Z, IRU3034, IRU3034CS Datasheet download

Five Points

Part Number: IRU3034CS

Category: Integrated Circuits (ICs)

MFG: International Rectifier

Package Cooled: SOP-8

D/C: 2003

Description: IC CTRL/REG PWM SWITCH 8-SOIC

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IRU3034 General 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.

IRU3034 Maximum Ratings

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

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 Cycle in 100ns)
·1% Internal Voltage Reference
·Internal Under-Voltage Lockout protects MOSFET during start-up

IRU3034 Typical 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

IRU3034 Connection Diagram

IRU3034CS Parameters

Technical/Catalog Information	IRU3034CS
Vendor	International Rectifier
Category	Integrated Circuits (ICs)
Package / Case	8-SOIC (3.9mm Width)
Packaging	Tube
Type	*
Voltage - Input	12V
Voltage - Output	-
Number of Outputs	1
Applications	Controller, Intel Pentium? & II & P55C
Operating Temperature	0°C ~ 70°C
Drawing Number	*
Lead Free Status	Contains Lead
RoHS Status	RoHS Non-Compliant
Other Names	IRU3034CS IRU3034CS

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