MAX17000AETG+T

The MAX17000AETG+T is a complete DDR2 and DDR3 memory power management solution in 24 pin TQFN package. This pulse width modulation (PWM) controller provides a complete power solution for notebook DDR, DDR2 and DDR3 memory. It comprises a stepdown controller, a source-sink LDO regulator and a reference buffer to generate required VDDQ, VTT and VTTR rails. VDDQ rail is supplied by a step down converter using Maxim’s Quick-PWM controller. The high efficiency, constant on time PWM controller handles wide input/output voltage ratios with ease and provides 100ns response to load transients while maintaining a relatively constant switching frequency. It includes a ±2A source sink LDO regulator for memory termination VTT rail. This VTT regulator has a ±5mV dead band that either sources or sinks, ideal for the fast changing load burst present in memory termination applications. It is used in notebook computers and SSTL memory supplies.

• Supply voltage range is 4.5V to 5.5V
• Operating temperature range of -40°C to 85°C, o/p voltage preset 1.8V, 1.5V or adjustable 1V to 2.5V
• SMPS regulator (VDDQ), quick-PWM with 100ns load-step response
• 1% VOUT accuracy over line and load, 26V maximum input voltage rating
• Accurate valley current-limit protection, 200KHz to 600KHz switching frequency
• Source/sink linear regulator (VTT), ±2A peak source/sink, low output capacitance requirement
• Output voltages preset VDDQ/2 or REFIN adjustable from 0.5V to 1.5V
• Soft-start/soft-shutdown, SMPS power good window comparator
• VTT power good window comparator, selectable overvoltage protection
• Undervoltage/thermal protections, ±3mA reference buffer (VTTR)

應用

Power Management, Consumer Electronics, Portable Devices

附註

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party