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Unisonic Technologies - 3A BUS TERMINATION REGULATOR

Numéro de référence UR5516
Description 3A BUS TERMINATION REGULATOR
Fabricant Unisonic Technologies 
Logo Unisonic Technologies 





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UR5516 fiche technique
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UNISONIC TECHNOLOGIES CO., LTD
UR5516
LINEAR INTEGRATED CIRCUIT
3A BUS TERMINATION
REGULATOR
SOP-8
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 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 UR5516 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
1 TO-252-5
1
TO-263-5
*Pb-free plating product number: UR5516L
ORDERING INFORMATION
Order 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
SOP-8
HSOP-8
HSOP-8
TO-252-5
TO-252-5
TO-263-5
TO-263-5
Packing
Tape Reel
Tube
Tape Reel
Tube
Tape Reel
Tube
Tape Reel
Tube
U5516L-S08-R
(1)Packing Type
(2)Package Type
(3)Lead Plating
(1) R: Tape Reel, T: Tube
(2) S08: SOP-8, SH2: HSOP-8, TN5: TO-252-5,
TQ 5: TO-263-5
(3) L: Lead Free Plating, Blank: Pb/Sn
www.unisonic.com.tw
Copyright © 2005 Unisonic Technologies Co., Ltd
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