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FAN5078 Datasheet DDR/ACPI Regulator Combo

Manufacturer: Fairchild (now onsemi)

Overview: www.DataSheet4U.com FAN5078 DDR/ACPI Regulator Combo May 2006 FAN5078 DDR/ACPI Regulator.

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General Description

The FAN5078 DDR memory regulator combines a highefficiency Pulse-Width Modulated (PWM) controller to generate the memory supply voltage, VDDQ, and a linear regulator to generate termination voltage (VTT).

Synchronous rectification provides high efficiency over a wide range of load currents.

Efficiency is further enhanced by using the low-side MOSFET’s RDS(ON) to sense current.

Key Features

  • PWM regulator for VDDQ (2.5V or 1.8) Linear LDO regulator generates VTT = VDDQ/2, 1.5A Peak sink/source capability AMT / M-state support Control to generate 5V USB ACPI drive and control for 5V DUAL generation 3.3V internal LDO for 3V-ALW generation 300 kHz fixed frequency switching RDS(ON) current sensing or optional current sense resistor for precision over-current detect Internal synchronous boot diode C.

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