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FAN5066N, FAN5068, FAN5068HP

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Info of FAN5066N
Info of FAN5068
Info of FAN5068HP

FAN5066N, FAN5068, FAN5068HP Selling Leads, Datasheet

MFG:FAIRCHIL.. Package Cooled:SOP D/C:03+

FAN5066N, FAN5068, FAN5068HP Datasheet download

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Part Number: FAN5066N

MFG: FAIRCHIL..

Package Cooled: SOP

D/C: 03+

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FAN5068 General Description

More DDR product information

The FAN5068 DDR memory regulator combines a high-efficiency PWM controller to generate the supply voltage, VDDQ, and a linear regulator to generate VTT, the termination voltage. Synchronous rectification provides high-efficiency over a wide range of load currents. Efficiency is further enhanced by using the low-side MOSFET's R_DS(ON) to sense current instead of a series sense resistor.

In S3 mode, only the VDDQ switcher and the 3.3V regulators remain on while the VTT and ULDO regulators are shut off. To avoid "glitching" the VDDQ output during the transition from S3 to S0, the three linear regulators use the SS capacitor to limit their slew rates, thereby limiting the surge current from the VDDQ output. PGOOD becomes true in S0 only when all 3 regulators have achieved stable outputs.

In S5 (EN = 0), the 3.3V internal LDO stays on, while the other regulators are powered down.

The VDDQ PWM regulator is a sampled current mode control with external compensation to achieve fast load transient response and provide system design optimization.

The VTT regulator derives its reference and takes its power from the VDDQ PWM regulator output using a precision internal voltage divider to set its output at 1/2 of VDDQ. The VTT termination regulator is capable of sourcing or sinking at least 1.5A peak current.

FAN5068 Maximum Ratings

Product	Product status	Eco Status	Pricing*	Package type	Leads	Packing method	Package Drawing	Package Marking Convention**
FAN5068MPX	Full Production	Green	$0.90	MLP	24	TAPE REEL		Line 1: $Y (Fairchild logo) &Z (Asm. Plant Code) &2 (2-Digit Date Code) &K Line 2: FAN5068MP Line 3: C

* Fairchild 1,000 piece Budgetary Pricing

** A sample button will appear if the part is available through Fairchild's on-line samples program. If there is no sample button, please contact a Fairchild distributor to obtain samples

Package marking information for product FAN5068 is available. Click here for more information .

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