isl95831 print page 3+1 voltage regulator for imvp-7/vr12 cpus features description isim design simulation technical documentation tools and support pricing / samples related devices datasheet isl95831 3+1 voltage regulator for imvp-7/vr12 cpus v in (min) (v) 4.5 v in (max) (v) 25 v out (min) (v) .25 v out (max) (v) 1.52 i out (max) (a) 90 v bias (v) 5 applications vr12/imvp7 max # of outputs 1 max # of phases 3 droop y integrated mosfet driver y product information key features serial data bus dual outputs: configurable 3-, 2- or 1-phase for the 1st output using 2 integrated gate drivers 1-phase for the 2nd output using an integrated gate driver 0.5% system accuracy over-temperature supports multiple current sensing methods lossless inductor dcr current sensing precision resistor current sensing differential remote voltage sensing programmable v boot voltage at start-up resistor programmable i max , t max for both outputs adaptive body diode conduction time reduction description compliant with imvp-7/vr12?, the isl95831 provides a complete solution for microprocessor and graphic processor core power supply. it provides two voltage regulators (vrs) with three integrated gate drivers. the first vr can be configured as 3-, 2- or 1-phase vr while the second output is 1- phase vr, providing maximum flexibility. the two vrs share the serial control bus to communicate with the cpu and achieve lower cost and smaller board area compared with the two- chip approach. based on intersils robust ripple regulator (r3) technology?, the pwm modulator compared to traditional modulators, has faster transient settling time, variable switching frequency during load transients and has improved light load efficiency with its ability to automatically change switching frequency. the isl95831 has several other key features. both outputs support dcr current sensing with single ntc thermistor for dcr temperature compensation or accurate resistor current sensing. both outputs come with remote voltage sense, programmable vboot voltage, programmable i max , t max , adjustable switching frequency, oc protection and separate power-good. pa g e 1 of 2 isl95831 3+1 volta g e re g ulator for imvp-7/vr12 cpus 11/8/2011 htt p ://www.intersil.com/ p roducts/ p rint.as p ?id=isl95831
pricing / packaging / samples / ordering ibuy direct from intersil ibuy direct - out of stock request samples check distributor inventory available in rohs/pb-free part no. design-in status temp. package msl isl95831hrtz active hi-temp comm 48 ld tqfn 3 isl95831hrtz-t active hi-temp comm 48 ld tqfn t+r 3 isl95831irtz active ind 48 ld tqfn 3 isl95831irtz-t active ind 48 ld tqfn t+r 3 the price listed is the manufacturer's suggested retail price for quantities of 1k units. however, prices in today's market are fluid and may change without notice. msl = moisture sensitivity level - per ipc/jedec j-std-020 smd = standard microcircuit drawing technical documentation datasheet(s): 3+1 voltage regulator for imvp-7/vr12 cpus tools and support isim design simulation isim:pe users guide application block diagrams notebook computers applications imvp-7/vr12 compliant computers related devices parametric table ISL6353 multiphase pwm regulator for vr12 ddr memory systems isl6363 multiphase pwm regulator for vr12? desktop cpus isl6364 dual 4-phase + 1-phase pwm controller for vr12/imvp7 applications isl6364c dual 4-phase + 1-phase pwm controller for vr12 desktop applications isl6366 dual 6-phase + 1-phase pwm controller for vr12/imvp7 applications isl95835 3+1 and 1+1 voltage regulator for imvp-7/vr12? cpus isl95837 3+1 and 1+1 voltage regulator for imvp-7/vr12? cpus about us | careers | contact us | investors | legal | privacy | site map | subscribe | intranet ?2003-2011. intersil americas inc. all rights reserved. pa g e 2 of 2 isl95831 3+1 volta g e re g ulator for imvp-7/vr12 cpus 11/8/2011 htt p ://www.intersil.com/ p roducts/ p rint.as p ?id=isl95831
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