CM3202-00

• Two linear regulators
  • Maximum 2A current from VDDQ
  • Source and sink up to 2A VTT current
• 1.7V to 2.8V adjustable VDDQ output voltage
• 500mV typical VDDQ dropout voltage at 2A
• VTT tracking at 50% of VDDQ
• Excellent load and line regulation, low noise
• Fast transient response
• Meet JEDEC DDR-I and DDR-II memory power spec.
• Linear regulator design requires no inductors and has low external component count
• Integrated power MOSFETs
• Dual purpose ADJ/Shutdown pin
• Built-in over-current limit and thermal shutdown for VDDQ and VTT
• Fast transient response
• Low quiescent current
• TDFN-8 RoHS compliant lead-free package
• 8-lead SOIC package

The CM3202 is a dual-output low noise linear regulator designed to meet SSTL-2 and SSTL-3 specifications for DDR-SDRAM VDDQ supply and termination voltage VTT supply. With integrated power MOSFETs, the CM3202 can source up to 2A of VDDQ continuous current, and source or sink up to 2A VTT continuous current. The typical dropout voltage for VDDQ is 500 mV at 2A load current.

The CM3202 provides fast response to transient load changes. Load regulation is excellent, from no load to full load. It also has built-in over-current limits and thermal shutdown at 170°C.

The CM3202 supports Suspend To RAM (STR) and ACPI compliance with Shutdown Mode which tri-states VTT to minimize quiescent system current.

The CM3202 is packaged in an easy-to-use TDFN-8. Low thermal resistance allows it to withstand high power dissipation at 85°C ambient. It can operate over the industrial ambient temperature range of -40°C to 85°C.