Press Center
                   
                  Home About us Products Support Quality & Certification Career Contact us
                  • Power Management
                      Linear Regulators
                      Low Dropout Linear Regulators
                      DDR Termination Regulators
                      Shunt Reference Regulators
                      Step Down Switching Regulators
                      Switching Regulator
                      Step-Up DC-DC Converter
                      PWM Controller
                      White LED Driver
                      Supervisory Circuit
                      Voltage Detection and System R
                      USB Power Switch
                      Power Factor Control
                      Li-Battery Protection or Charg
                      FET Bias Controllers
                      Combo IC
                      Inverting DC-DC Converter
                  • Amplifier / Comparator
                      Audio Amplifiers
                      Operational Amplifier
                      Voltage Comparator
                  • Analog Switches
                      Video Signal Switch
                      Analog Multiplexers, Demultipl
                  • Hall ICs
                  • Special Application ICs
                      Motor Controller IC
                      Interface and Driver Circuit
                      Telecommunication Circuit
                      Melody IC
                      Alarm /Sound Generator IC
                      Remote Controller IC
                      Television Circuit
                      Leakage Current Detector
                      Automotive IC
                      A-D or D-A Converters
                      Miscellaneous
                      Radio and Cassette Recorder Ci
                      Timer
                      Mouse&Keyboard Controller
                      Transient Voltage Suppressors
                      Sense Monitor
                      Video Filter
                      ZCB snubber
                  • Logic
                  • TRANSISTORs
                  • MOSFETs
                      JFET
                      Power Mosfet
                  • TRIACs
                  • SCRs
                  • DIODEs
                   
                  Home > DDR Termination Regulators
                  UR5517 Datasheet

                  3A DDR BUS TERMINATION REGULATOR


                   
                  DESCRIPTION
                   
                  The UR5517 is a linear regulator which provides up to 3 Amp
                  bi-directional sourcing and sinking capability for DDR1/2/3 SDRAM
                  bus terminator applications. It only requires 20uF of ceramic output
                  capacitance by a integrated operational amplifier which provides fast
                  load transient response.
                  The UR5517 also includes two control pins, S3 & S5. If S3 were
                  set in low level, VTT will be turned off and left Hi-Z(sleep-state
                  mode).If setting S5 were set in low level, both VTT and VTTREF will
                  be turned off and discharged to ground(soft-off mode).
                   
                   
                   
                  FEATURES
                   
                  * Input Voltage Range::3~5.5V
                  * VLDOIN Voltage Range:1.2V~3.6V
                  * DDR1/2/3 Termination Voltage Applications
                  * Sourcing and Sinking Current up to 3A
                  * ±20mV Accuracy for VTT and VTTREF
                  * 10mA Buffered Reference(VTTREF)
                  * Supports High-Z in S3(STR) and Soft-off in S5(Shutdown)
                  * Integrated Divider Tracks 1/2 VDDQSNS for Both VTT&VTTREF
                  * Built-In Soft-Start
                  * Current Limiting Protection
                  * Thermal Shutdown Protection
                  About us  |  Products  |  Contact us
                  Copyright 2011 UTC All received    
                  日韩精品一区二区三区无码专区,久久国产精品99久久久久久,久久亚洲国产综合AV,中文无码精品一区二区