dual output digital multi-phase controller IR3565B www.irf.com | ? 2013 international rectifier august 1, 2013 | v1.04 1 features ? dual output 4+2 phase pwm controller ? easiest layout and fewest pins in the industry ? fully supports amd? svi1 & svi2 with dual ocp and intel? vr12 & vr12.5 ? complies with vr12.5 rev 1.3 requirement for svid register 15h to have <200 sec filter ? overclocking & gaming mode ? switching frequency from 200khz to 2mhz per phase ? ir efficiency shaping features including dynamic phase control and automatic power state switching ? ir adaptive transient algorithm (ata) on both loops minimizes output bulk capacitors and system cost ? auto-phase detection with auto- compensation ? per-loop fault protection: ovp, uvp, ocp, otp, cfp ? i2c/smbus/pmbus system interface for telemetry of temperature, voltage, current & power for both loops ? multiple time programming (mtp) with integrated charge pump for easy custom configuration ? compatible with ir atl and 3.3v tri-state drivers ? +3.3v supply voltage; -40c to 85c ambient operation ? pb -free, rohs , 6x6 mm , 48 -pin, 0.4mm pitch qfn description the IR3565B is a dual-loop digital multi-phase buck controller designed for cpu voltage regulation and is ful ly compliant with amd? svi1 & svi2 and intel ? vr12 & vr12.5 specifications. the IR3565B includes ir s efficiency shaping technology to deliver exceptional efficiency at minimum cost across the entire load range. ir variable gate drive optimizes the mosfet gate drive voltage based on real- time load current. ir s dy namic phase control adds/drops active phases based upon load current and can be configured to enter 1-phase operation and diode emulation mode automatically or by command. ir s unique adaptive transient algorithm (ata), based on proprietary non-linear digital pwm algorithms, minimizes output bulk capacitors and multiple time programmable (mtp) storage saves pins and enables a small package size. device configuration and fault parameters are easily defined using the ir digital power design center (dpdc) gui and stored in on-chip mtp. the IR3565B provides extensive ovp, uvp, ocp and otp fault protection and includes thermistor based temperature sensing with vrhot signal . the IR3565B includes numerous features like register diagnostics for fast design cycles and platform differentiation, simplifying vrd design and enabling fastest time- to - market (ttm) with set - and - forget methodology. applications ? amd? svi1 & svi2, intel? vr12 & vr12.5 based systems ? desktop & notebook cpu vrs ? high performance graphics processors ordering information base part number package type standard pack orderable part number form quantity IR3565B qfn 6 mm x 6 mm tape and reel 3000 IR3565Bmxxyytrp 1 IR3565B qfn 6 mm x 6 mm tape and reel 3000 IR3565Bmtrpbf IR3565B qfn 6 mm x 6 mm tray 4900 IR3565Bmtypbf notes 1: customer specific configuration file, where xx = cust omer id and yy = configuration file (codes assigned by ir marketing). downloaded from: http:///
dual output digital multi-phase controller IR3565B www.irf.com | ? 2013 international rectifier august 1, 2013 | v1.04 2 ordering information IR3565Bm ? ? ? ? ? ? ? ? ? 23 21 24 22 vrtn rcsm vsen pwrgd/ vrdy1 rcsp tsen1 v18a rres vcc pwm1 rcsm_l2 rcsp_l2 pwrok/en_l2/ inmode vrdy2 vrtn_l2 vsen_l2 1 2 7 8 5 6 3 4 10 9 34 33 28 27 30 29 32 31 25 26 49 gnd IR3565B 48 pin 6x6 qfn top view 12 16 14 19 13 17 15 20 18 11 47 43 45 40 46 42 44 39 41 48 vinsen irtn1 cfp svt/ sv_alert viddio/ sv_addr nc 36 35 38 37 sv_clk/ vidsel1 sv_dio/ vidsel0 vrhot_icrit en addr_pro t sm_alert sm_dio sm_clk nc pwm2 pwm3 pwm4 pwm2_l2 pwm1_l2 vgd/tsen2/ vauxsen isen1 irtn2 isen2 irtn3 isen3 irtn4 isen4 irtn2_l2 isen2_l2 irtn1_l2 isen1_l2 figure 1 : IR3565B pin diagram enlarged p/pbf C lead free tr C tape & reel / ty - tray yy C configuration file id xx C customer id package type (qfn) downloaded from: http:///
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