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MIC5165 Dataheets PDF



Part Number MIC5165
Manufacturers Micrel Semiconductor
Logo Micrel Semiconductor
Description Dual Regulator Controller
Datasheet MIC5165 DatasheetMIC5165 Datasheet (PDF)

MIC5165 Dual Regulator Controller for DDR3 GDDR3/4/5 Memory Termination General Description Features The MIC5165 is a dual regulator controller designed • Input voltage range: 0.75V to 6V specifically for low-voltage memory termination • Up to 7A VTT Current applications such as DDR3 and GDDR3/4/5. The MIC5165 • Tracking programmable output offers a simple, low-cost JEDEC-compliant solution for • Power Good signal terminating high-speed, low-voltage digital buses with a • Wide bandwidth Power.

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MIC5165 Dual Regulator Controller for DDR3 GDDR3/4/5 Memory Termination General Description Features The MIC5165 is a dual regulator controller designed • Input voltage range: 0.75V to 6V specifically for low-voltage memory termination • Up to 7A VTT Current applications such as DDR3 and GDDR3/4/5. The MIC5165 • Tracking programmable output offers a simple, low-cost JEDEC-compliant solution for • Power Good signal terminating high-speed, low-voltage digital buses with a • Wide bandwidth Power Good (PG) signal. • Logic-controlled enable input The MIC5165 controls two external N-Channel MOSFETs to form two separate regulators. It operates by switching • Requires minimal external components between either the high-side MOSFET or the low-side • DDR3, GDDR3/4/5 memory termination MOSFET, depending on whether the current is being • -40°C < TJ < +125°C sourced to the load or being sunk by the regulator. • Tiny MSOP-10 package Designed to provide a universal solution for memory termination regardless of input voltage, output voltage, or load current, the desired MIC5165 output voltage can be Applications programmed by forcing the reference voltage externally to • Desktop Computers the desired voltage. • Servers The MIC5165 operates from an input voltage as low as • Notebook computers 0.75V up to 6V, with a second bias supply input required for operation. The MIC5165 is available in a tiny MSOP-10 • Workstations package with an operating junction temperature range of • DDR3 andGDDR3/4/5 Memory Termination –40°C to +125°C. Data sheets and support documentation can be found on Micrel’s web site at: www.micrel.com. ____________________________________________________________________________________________________________ Typical Application MIC5165 as a DDR3 Memory Termination Device for 3.5A Application Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com June 2010 M9999-061510-B Micrel, Inc. MIC5165 Ordering Information Part Number MIC5165YMM Temperature Range –40° to +125°C Package 10-Pin MSOP Lead Finish Pb-Free Note: MSOP is a Green RoHS compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free. Pin Configuration 10-Pin MSOP (MM) Pin Description Pin Number 1 2 3 4 5 6 7 8 9 10 Pin Name VCC EN VDDQ VREF GND FB COMP LD HD PG Pin Function Bias Supply (Input): Apply 3V-6V to this input for internal bias to the controller. Enable (Input): CMOS compatible input. Logic high = enable, logic low = shutdown. The EN pin can be tied directly to VDDQ or VCC for functionality. Do not float the EN pin. Floating this pin causes the enable to be in an undetermined state. Input Supply Voltage. Reference voltage equal to half of VDDQ. For internal use only. Ground. Feedback (Input): Input to the internal error amplifier. Compensation (Output): Connect a capacitor and resistor from COMP pin to FB pin for compensation of the internal control loop. Low-Side Drive (Output): Connects to the Gate of the external low-side MOSFET. High-Side Drive (Output): Connects to the Gate of the external high-side MOSFET. Power Good (Output): Open drain output. June 2010 2 M9999-061510-B Micrel, Inc. MIC5165 Absolute Maximum Ratings(1) VCC to GND.................................................... −0.3V to +7V VDDQ to GND ................................................. −0.3V to +7V EN to GND ....................................................... −0.3V to VCC FB to GND........................................................ −0.3V to VCC VREF to GND................................................. −0.3V to VDDQ COMP to GND.................................................. −0.3V to VCC HD, LD to GND ................................................ −0.3V to VCC PG to GND ....................................................... −0.3V to VCC Lead Temperature (Soldering 10sec.) ....................... 260°C Storage Temperature (TS)......................... −65°C to +150°C ESD Rating(3) (HBM) ....................................................................+2kV (MM) ....................................................................+300V Operating Ratings(2) Supply Voltage (VCC).............................................. 3V to 6V Supply Voltage (VDDQ) ....................................... 0.75V to 6V Enable Input Voltage (VEN)..................................... 0V to VIN Junction Temperature Range (TJ)...... −40°C < TJ < +125°C Junction Thermal Resistance MSOP-10 (θJA)..............................................130.5°C/W MSOP-10 (θJC)................................................42.6°C/W Electrical Characteristics(4) TA = 25°C with VDDQ = 1.5V; VCC = EN = 5V, bold values indicate –40°C ≤ TJ ≤ +125°C, unless otherwise specified. See test circuit 1 for test circuit configuration. Parameter VREF Voltage Accuracy Sourcing; 100mA to 3A VTT Voltage Accuracy (Note 5) Sinking; -100mA to -3A Supply Current (IDDQ) Supply Current (ICC) IC.


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