MIC5164 Datasheet | Micrel Semiconductor

Dual Regulator Controller for DDR3 GDDR3/4/5 Memory and High-Speed Bus Termination General Description The MIC5164 is a dual regulator controller designed for high speed bus termination. It offers a simple, low-cost JEDEC-pliant solution for terminating high-speed, lowvoltage digital buses (i.e. DDR, DDR2, DDR3, SCSI, GTL, SSTL, HSTL, LV-TTL, Rambus, LV-PECL, LV-ECL, etc) with a Power Good (PG) signal. The MIC5164 controls two external N-Channel MOSFETs to form two separate regulators. It operates by switching between either the high-side MOSFET or the low-side MOSFET depending on whether the current is being sourced to the load or sunk by the regulator. Designed to provide a universal solution for bus termination regardless of input voltage, output voltage, or load current, the desired MIC5164 output voltage can be programmed by forcing the reference voltage externally to the desired voltage. The MIC5164 operates from an input of 1.35V to 6V, with a second bias supply input required for operation. It is available in the tiny MSOP-10 package with an operating junction temperature range of - 40°C to +125°C. Data sheets and support documentation can be found on Micrel’s web site at: .micrel.. Features - - - - - - - - - - Input voltage range: 1.35V to 6V Up to 7A VTT Current Tracking programmable output Power Good (PG) signal Wide bandwidth Logic controlled enable input Requires minimal external ponents DDR, DDR2, DDR3, memory termination - 40°C < TJ < +125°C JEDEC-pliant bus termination for SCSI, GTL, SSTL, HSTL, LV-TTL, Rambus, LV-PECL, LV-ECL, etc - Tiny MSOP-10 package Applications - Desktop puters - Notebook puters - munication systems - Video cards - DDR/DDR2/DDR3 memory termination ____________________________________________________________________________________________________________ Typical Application Typical SSTL-2 Application (Two MOSFETs Support a 3.5A Application) Micrel Inc. - 2180 Fortune Drive - San Jose, CA...