MAX1809 Datasheet - Maxim

MAX1809, 3A / 1MHz / DDR Memory Termination Supply

19-2142; Rev 1; 9/02 3A, 1MHz, DDR Memory Termination Supply General Description The MAX1809 is a reversible energy flow, constant-offtime, pulse-wid

Features

* an internal PMOS power switch and internal synchronous rectifier for high efficiency and reduced component count. The internal 90m Ω PMOS power switch and 70mΩ NMOS synchronous-rectifier switch easily deliver continuous load currents up to 3A. The MAX1809 accurately tracks an external reference volt

Applications

* DDR Memory Termination Active Termination Buses
* Contact factory for availability. Pin Configurations SHDN N. C. LX LX Typical Operating Circuit VIN IN MAX1809 VCC SHDN VSET EXTREF TOFF REF SS LX PGND VOUT TOP VIEW 28 N. C. 27 26 25 24 N. C. 23 N. C. IN LX IN 22 N. C. 1 2 3 4 5 6 7 10

MAX1809_MaximIntegratedProducts.pdf