UR5516A-SH2-R datasheet(1/9 Pages) UTC

No de pièce	UR5516A-SH2-R

Description	LINEAR INTEGRATED CIRCUIT

PDF	9 Pages

Scroll/Zoom	100%

Fabricant	UTC [Unisonic Technologies]

Site Internet	http://www.utc-ic.com

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1 / 9 page

UNISONIC TECHNOLOGIES CO., LTD

UR5516A

LINEAR INTEGRATED CIRCUIT

www.unisonic.com.tw

1 of 9

QW-R101-018,A

3A BUS TERMINATION

REGULATOR

DESCRIPTION

The UTC UR5516A 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 VREF pin. A resistor divider connected to VIN,

GND and VREF pins is used to provide a half voltage of VIN to VREF

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

transistor connected to VREF pin provides soft-start and shutdown

control respectively. Pulling and holding the VREF to GND shuts off

the output. The output of UTC UR5516A will be high impedance

after being shut down by VREF or thermal shutdown function.

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, VOUT offset and temperature

* Adjustable output voltage by external resistors

* Current-limit protection

* On-chip thermal shutdown

* Shutdown for standby or suspend mode

HSOP-8

*Pb-free plating product number: UR5516AL

ORDERING INFORMATION

Ordering Number

Normal

Lead Free Plating

Package

Packing

UR5516A-SH2-R

UR5516AL-SH2-R

HSOP-8

Tape Reel

UR5516A-SH2-T

UR5516AL-SH2-T

HSOP-8

Tube

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