UR5517L-SM2-R datasheet(2/9 Pages) UTC

Part #	UR5517L-SM2-R

Description	3A DDR BUS TERMINATION REGULATOR

PDF	9 Pages

Scroll/Zoom	100%

Manufacturer	UTC [Unisonic Technologies]

Direct Link	http://www.utc-ic.com

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2 / 9 page

UR5517

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

2 of 9

www.unisonic.com.tw

QW-R102-041.B

PIN CONFIGURATIONS

PIN DESCRIPTION(Note)

PIN NAME

PIN TYPE

PIN DESCRIPTION

VDDQSNS

VDDQ sense input

VLDOIN

Power supply for the VTT & VTTREF output stage

VTT

Output voltage for connection to termination resistors, equal to VDDQSNS/2

PGND

Power ground output for the VTT output

VTTSNS

Voltage sense input for the VTT. Connect to plus terminal of the output capacitor

VTTREF

Buffered output that is a reference output, equal to VDDQSNS/2

Active low suspend to RAM mode control pin, VTT is turned off and left Hi-Z

GND

Ground

Active low shutdown control pin, both VTT&VTTREF are turned off and discharged to ground

VIN

Analog input pin

Note：Recommend connecting the Thermal Pad to the GND for the excellent power dissipation.

UR5517L-SM2-R Datasheet(PDF) 2 Page - Unisonic Technologies