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IRU3034PBF Datasheet 8-pin Pwm Switcher Controller Ic

Manufacturer: International Rectifier (now Infineon)

Overview: Data Sheet No. PD94148 revA IRU3034 & (PbF) 8-PIN PWM SWITCHER CONTROLLER IC WITH CURRENT.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The IRU3034 IC provides a low cost switching controller with true short circuit protection all in a pact 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.

Key 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 On-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.

More Datasheets from International Rectifier (now Infineon)

Part Number Description
IRU3034 8-PIN PWM SWITCHER CONTROLLER IC
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IRU3037A 8-PIN SYNCHRONOUS PWM CONTROLLER
IRU3037APBF 8-PIN SYNCHRONOUS PWM CONTROLLER
IRU3038 SYNCHRONOUS PWM CONTROLLER
IRU3039 SYNCHRONOUS PWM CONTROLLER
IRU3004 5-BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC
IRU3007 5-BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC
IRU3011 5-BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC

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