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Teilenummer | UR5512 |
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Beschreibung | 2A DDR BUS TERMINATION REGULATOR | |
Hersteller | Unisonic Technologies | |
Logo | ||
Gesamt 7 Seiten www.DataSheet4U.com
UNISONIC TECHNOLOGIES CO., LTD
UR5512
LINEAR INTEGRATED CIRCUIT
2A DDR BUS TERMINATION
REGULATOR
DESCRIPTION
The UR5512 is a linear regulator which provides up to 2 Amp
bi-directional driving and sinking capability for DDR SDRAM bus
terminator application. The output termination voltage tracks the
reference voltage applied at VREF pin. A resistor divider connected to
VIN, GND and VREF pins is used to force a reference voltage to VREF
pin.
The UR5512 contains a high-speed operational amplifier to
provide excellent response to line/load transient. An active-low
shutdown (VREF) pin provides Suspend to RAM (STR) functionality.
Additional features include current limiting protection, on-chip
thermal shut-down protection.
FEATURES
* DDR-II Termination Voltage applications
* Driving and sinking current up to 2A
* Low output voltage offset (within 20mV@±2A)
* Adjustable output voltage by external resistors
* Suspend to RAM (STR) functionality
* Current limiting protection
* Thermal protection
* Cost-effective and easy to use
HSOP -8
*Pb-free plating product number: UR5512L
ORDERING INFORMATION
Order Number
Normal
Lead Free Plating
UR5512-SH2-R
UR5512L-SH2-R
UR5512-SH2-T
UR5512L-SH2-T
UR5512L-SH2-R
(1)Packing Type
(2)Package Type
(3)Lead Plating
Package
HSOP-8
HSOP-8
Packing
Tape Reel
Tube
(1) R: Tape Reel, T: Tube
(2) SH2: HSOP-8
(3) L: Lead Free Plating, Blank: Pb/Sn
www.unisonic.com.tw
Copyright © 2005 Unisonic Technologies Co., Ltd
1 of 7
QW-R101-017,A
UR5512
TYPICAL APPLICATIONS CIRCUIT
+1.8V
LINEAR INTEGRATED CIRCUIT
1 VIN
C1 2 GND
R1 1000µ
3 VREF
R2 1.2V/-2 ~ +1.8A 4 VOUT
CSS
COUT
8
NC
NC 7
VCNTL 6
NC 5
+5V
C
1µ
VREF = VIN ·
R2
R1+R2
(V)
VOUT track VREF
Enable
+1.8V
C1
R1 1000µ
1 VIN
2 GND
3 VREF
R2 0.9V/-2A ~ +2A 4 VOUT
COUT
NC 8
NC 7
VCNTL 6
NC 5
+5V
C
1µ
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
6 of 7
QW-R101-017,A
6 Page | ||
Seiten | Gesamt 7 Seiten | |
PDF Download | [ UR5512 Schematic.PDF ] |
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