Unisonic Technologies UR5517
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.DESCRIPTION
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 VoltageAPPLICATIONS
* 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● ORDERING INFORMATION Ordering Number Lead Free Halogen Free UR5517L-SM1-R UR5517G-SM1-R UR5517L-HM1-R UR5517G-HM1-R UR5517L-SM2-R UR5517G-SM2-R UR5517L-HM2-R UR5517G-HM2-R Package MSOP-8 HMSOP-8 MSOP-10 HMSOP-10 Packing Tape Reel Tape Reel Tape Reel Tape Reel Copyright © 2018 Unisonic Technologies Co., Ltd 1 of 9 QW-R102-041.H UR5517
● MARKING MSOP-8 / HMS...