UR5516-TN5-R datasheet, PDF - EEWORLD Datasheet

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UR5516-TN5-R: Description3A BUS TERMINATION REGULATOR; File Size227KB，9 Pages; ManufacturerETL [E-Tech Electronics LTD]

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3A BUS TERMINATION REGULATOR

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UNISONIC TECHNOLOGIES CO., LTD

UR5516

3A BUS TERMINATION

REGULATOR

DESCRIPTION

The UTC

UR5516

is designed to provide a regulated voltage with

bi-directional output current for DDR-SDRAM termination.

Current-limit work to limit the short-circuit current, on-chip thermal

shutdown provides protection against any combination of overload

that would create excessive junction temperature. The output voltage

tracks the voltage at V

REF

pin. A resistor divider connected to V

GND and V

REF

pins is used to provide a half voltage of V

to V

REF

pin. In addition, an external ceramic capacitor and an open-drain

transistor connected to V

REF

pin provides soft-start and shutdown

control respectively. Pulling and holding the V

REF

to GND shuts off

the output. The output of UTC

UR5516

will be high impedance after

being shut down by V

REF

or thermal shutdown function.

HSOP-8

LINEAR INTEGRATED CIRCUIT

SOP-8

TO-252-5

TO-263-5

*Pb-free plating product number: UR5516L

FEATURES

* Provide bi-direction current

- Sourcing or sinking current up to 3A

* 1.25V/0.9V output for DDR I/II applications

* Fast transient response

* High output accuracy

- ±20mv over load, V

OUT

offset and temperature

* Adjustable output voltage by external resistors

* Current-limit protection

* On-chip thermal shutdown

* Shutdown for standby or suspend mode

ORDERING INFORMATION

Ordering Number

Normal

Lead Free Plating

UR5516-S08-R

UR5516L-S08-R

UR5516-S08-R

UR5516L-S08-R

UR5516-SH2-R

UR5516L-SH2-R

UR5516-SH2-R

UR5516L-SH2-R

UR5516-TN5-R

UR5516L-TN5-R

UR5516-TN5-T

UR5516L-TN5-T

UR5516-TQ5-R

UR5516L-TQ5-R

UR5516-TQ5-T

UR5516L-TQ5-T

Package

SOP-8

HSOP-8

TO-252-5

TO-263-5

Packing

Tape Reel

Tube

Tape Reel

Tube

Tape Reel

Tube

Tape Reel

Tube

www.unisonic.com.tw

1 of 9

QW-R101-015,D

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