dual output digital multi-phase controller IR3566B www.irf.com | ? 2013 international rectifier august 1, 2013 | v 1. 04 1 features ? dual output 6+1 phase pwm controller ? 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 ? pvi and svi gpu vr modes ? 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 ? 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 ordering information description the IR3566B is a dual-loop digital multi-phase buck controller designed for cpu voltage regulation and is fully compliant with amd? svi1 & svi2 and intel ? vr12 & vr12.5 specifications. the IR3566B 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 dynamic 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. irs 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 IR3566B provides extensive ovp, uvp, ocp and otp fault protection and includes thermistor based temperature sensing with vrhot signal . the IR3566B 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 ? servers and high end desktop cpu vrs ? high performance graphics processor base part number package type standard pack orderable part number form quantity IR3566B qfn 6 mm x 6 mm tape and reel 3000 IR3566Bmxxyytrp 1 IR3566B qfn 6 mm x 6 mm tape and reel 3000 IR3566Bmtrpbf IR3566B qfn 6 mm x 6 mm tray 4900 IR3566Bmtypbf notes : 1. customer specific configuration file, where xx = cu stomer id and yy = configuration file (codes assigne d by ir marketing). downloaded from: http:///
dual output digital multi-phase controller IR3566B www.irf.com | ? 2013 international rectifier august 1, 2013 | v 1. 04 2 ordering information IR3566Bm ? ? ? ? ? ? ? ? ? 23 21 24 22 pwm1_l2 vrtn rcsm vsen vrdy1 rcsp tsen1 pwm3 v18a rres vcc pwm2 pwm1 rcsm_l2 rcsp_l2 en_l2/inmode/pwrok 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 IR3566B 48 pin 6 x 6 qfn top view 12 16 14 19 13 17 15 20 18 11 47 43 45 40 46 42 44 39 41 48 vrhot_crit# vinsen en addr_prot sm_dio sm_clk irtn1 isen1 sv_alert#/svt sv_addr/vddio sm_alert# 36 35 pwm4 38 37 irtn1_l2 isen1_l2 pwm5 pwm6 vgd/tsen2/ vauxsen irtn6 isen6 sv_clk/ vidsel1 sv_dio/ vidsel0 irtn2 isen2 irtn3 isen3 irtn4 isen4 irtn5 isen5 figure 1 : IR3566B 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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