MIC5162_10 Datasheet, PDF (1/24 Pages) Micrel Semiconductor – Dual Regulator Controller for DDR3 GDDR3/4/5 Memory and High-Speed Bus Termination

MIC5162
Dual Regulator Controller for DDR3
GDDR3/4/5 Memory and High-Speed
Bus Termination
General Description
Features
The MIC5162 is a dual regulator controller designed for
high speed bus termination. It offers a simple, low-cost
JEDEC compliant solution for terminating high-speed, low-
voltage digital buses (i.e. DDR, DDR2, DDR3, SCSI, GTL,
SSTL, HSTL, LV-TTL, Rambus, LV-PECL, LV-ECL, etc).
The MIC5162 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 upon 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 MIC5162 output voltage can be
programmed by forcing the reference voltage externally to
desired voltage.
The MIC5162 operates from an input of 1.35V to 6V, with
a second bias supply input required for operation. It is
available in a tiny MSOP-10 package with operating
junction temperature range of -40°C to +125°C.
• Input voltage range: 1.35V to 6V
• Up to 7A V_TT Current
• Tracking programmable output
• Wide bandwidth
• Logic controlled enable input
• Requires minimal external components
• DDR, DDR2, DDR3, memory termination
• -40°C < T_J < +125°C
• JEDEC Compliant Bus Termination for SCSI, GTL,
SSTL, HSTL, LV-TTL, Rambus, LV-PECL, LV-ECL, etc
• Tiny MSOP-10 package
Applications
• Desktop Computers
• Notebook computers
• Communication systems
Data sheets and support documentation can be found on ^{• Video cards}
Micrel’s web site at: www.micrel.com.
• 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 95131 • USA • tel [phone] • fax + 1 [phone] • http://www.micrel.com
March 2010
M9999-033110