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 usePinout...
UR5512: 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 (ST...
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PARAMETER |
SYMBOL |
RATING |
UNIT |
VCNTL Control Voltage |
VCNTL |
-0.2 ~ 7 |
V |
VIN Supply Voltage |
VIN |
-0.2 ~ 3.9 |
V |
Power Dissipation |
PD |
Internally Limited |
W |
Junction Temperature |
TJ |
+125 |
°C |
Storage Temperature |
TSTG |
-40 ~ +150 |
°C |
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 of UR5512 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.