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MAX17000A

Maxim Integrated Products
Part Number MAX17000A
Manufacturer Maxim Integrated Products
Description Complete DDR2 and DDR3 Memory Power-Management
Published Jul 5, 2009
Detailed Description MAX17000A Complete DDR2 and DDR3 Memory Power-Management Solution General Description The MAX17000A pulse-width modulat...
Datasheet PDF File MAX17000A PDF File

MAX17000A
MAX17000A

Overview
MAX17000A Complete DDR2 and DDR3 Memory Power-Management Solution General Description The MAX17000A 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 the required VDDQ, VTT, and VTTR rails.
The VDDQ rail is supplied by a step-down converter using Maxim’s proprietary Quick-PWM™ controller.
The high-efficiency, constant-on-time PWM controller handles wide input/output voltage ratios (low duty-cycle applications) with ease and provides 100ns response to load transients while maintaining a relatively constant switching frequency.
The Quick-PWM architecture circumvents the poor load-transient timing problems of fixed-frequency current-mode PWMs while also avoiding the problems caused by widely varying switching frequencies in conventional constant-on-time and constant-off-time PWM schemes.
The controller senses the current...


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