dual output digital multi - phase controller ir356 7 a www.irf.com | ? 20 13 international rectifier | product brief | october 1 , 2013 | v 3.0 4 1 features ? dual output 6 +2 phase pwm controller ? easiest layout and fewest pins in the industry ? fully supports amd? svi1 & svi2 with dual ocp and intel? vr12 ? overclocking & gaming mode ? switching frequency from 200khz to 2mhz per phase ? ir efficiency shaping features including dynamic phase control and automatic power state switching ? programmable 1 - phase operation for light loads and active diode emulation for very light loads ? 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; - 4 0c to 85c ambient operation ? pb - free, rohs, 7x7mm , 56 - pin, 0.4mm pitch qfn description the ir3567a 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 specifications. the ir3567a include s 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 phas es based upon load current and can be configured to enter 1 - phase operation and dio de 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 ir3567a provides extensive ovp, uvp, ocp and otp fault protection and includes thermistor based temperature sensing with vrhot signal . the ir3567a includes numerous features like register diagnostics for fast design cycles and platform differentiation, simplifyi ng vrd design and enabling fastest time - to - market (ttm) with set - and - forget methodology . applications ? amd? svi1 & svi2, intel? vr12 based systems ? desktop & notebook cpu vrs ? high performance graphics processors ordering information base part number package type standard pack orderable part number form quantity ir35 67 a qfn 7 mm x 7 mm tape and reel 3000 ir35 67a mxxyytrp 1 ir35 67 a qfn 7 mm x 7 mm tape and reel 30 00 ir3567a mtrpbf ir35 67 a qfn 7 mm x 7 mm tray 2600 ir3567a mtypbf notes: 1. customer specific configuration file, where xx = customer id and yy = configuration file (codes assigned by ir marketing) .
dual output digital multi - phase controller ir356 7 a www.irf.com | ? 20 13 international rectifier | product brief | october 1 , 2013 | v 3.0 4 2 ordering information ir356 7 a m ? ? ? ? ? ? ? ? ? figure 1 : ir3567a 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) s m _ a l e r t # p w m 5 i s e n 2 _ l 2 e n v r t n r c s m i s e n 5 i s e n 4 i s e n 3 p w m 6 v s e n s m _ d i o p w m 4 p w r g d / v r d y 1 i r t n 3 i r t n 4 i r t n 2 _ l 2 i r t n 5 r c s p t s e n 1 v r h o t _ i c r i t # p w m 3 v i n s e n a d d r _ p r o t v 1 8 a r r e s v c c i s e n 2 i s e n 1 i r t n 1 i r t n 2 p w m 2 p w m 1 n c r c s m _ l 2 r c s p _ l 2 s m _ c l k c f p n c p w r o k / e n _ l 2 / i n m o d e v r d y 2 p w m 2 _ l 2 v r t n _ l 2 v s e n _ l 2 5 7 g n d i r 3 5 6 7 a 5 6 p i n 7 x 7 q f n t o p v i e w 5 5 5 1 5 3 4 8 5 4 5 0 5 2 4 7 4 9 5 6 4 6 4 5 4 3 4 4 1 2 7 8 5 6 3 4 1 0 9 1 2 1 1 1 4 1 3 1 6 2 0 1 8 2 3 1 7 2 1 1 9 2 4 2 2 1 5 2 5 2 6 2 8 2 7 4 2 4 1 3 6 3 5 3 8 3 7 4 0 3 9 3 3 3 4 3 1 3 2 2 9 3 0 i s e n 6 n c v a r g a t e p w m 1 _ l 2 i s e n 1 _ l 2 i r t n 1 _ l 2 i r t n 6 v d d i o / s v _ a d d r s v t / s v _ a l e r t s v _ d i o / v i d s e l 0 s v _ c l k / v i d s e l 1 t s n e 2 / v a u x s e n
dual output digital multi - phase controller ir356 7 a www.irf.com | ? 20 13 international rectifier | product brief | october 1 , 2013 | v 3.0 4 3 typical application diagram figure 2 : dual - loop vr using ir3567a controller and chl85 1 5 mosfet d rivers in 4 +2 configuration + 3 . 3 v v _ c p u _ l 1 i r 3 5 6 7 a v i n s e n p w m 4 p w m 1 _ l 2 p w m 3 p w m 2 p w m 1 i s e n 1 _ l 2 v r d y 1 v s e n v c c r r e s v 1 8 a v r t n i r t n 3 i s e n 4 i r t n 1 r c s p i r t n 2 r c s m i s e n 3 i s e n 2 i s e n 1 i r t n 4 + 1 2 v m a i n l o a d r c s c c s r s e r i e s r s e r i e s r t h r v i n _ 1 r v i n _ 2 i r t n 1 _ l 2 p w r o k / e n _ l 2 / i n m o d e t s e n 1 r t h 2 g n d h v c c l o g a t e h i g a t e v c c g n d p w m l v c c 1 2 v v b o o t s w i t c h v _ v g d v a r g a t e o p t i o n a l v a r i a b l e g a t e d r i v e c i r c u i t v _ c p u _ l 2 l o a d v r _ h o t _ i c r i t # s m _ c l k s m _ d i o i 2 c o r s m b u s v v r c s p _ l 2 r c s m _ l 2 r c s c c s r s e r i e s r s e r i e s r t h v s e n _ l 2 v r t n _ l 2 s v _ d i o s v _ c l k v v t o / f r o m c p u p w m 5 i s e n 5 i r t n 5 p w m 6 i s e n 6 i r t n 6 c f p s m _ a l e r t # v a d d r _ p r o t 3 . 3 v h v c c l o g a t e h i g a t e v c c g n d p w m l v c c v b o o t s w i t c h v v _ v g d h v c c l o g a t e h i g a t e v c c g n d p w m l v c c 5 v v b o o t s w i t c h v v _ v g d h v c c l o g a t e h i g a t e v c c g n d p w m l v c c v b o o t s w i t c h v h v c c l o g a t e h i g a t e v c c g n d p w m l v c c v b o o t s w i t c h v h v c c l o g a t e h i g a t e v c c g n d p w m l v c c v b o o t s w i t c h v c h l 8 5 1 5 u n u s e d p h a s e s t s e n 2 s v t / s v _ a l e r t # v d d i o v d d i o v r d y 2 e n 5 v v _ v g d v _ v g d 5 v v _ v g d p w m 2 _ l 2 i s e n 2 _ l 2 i r t n 2 _ l 2 h v c c l o g a t e h i g a t e v c c g n d p w m l v c c 5 v v b o o t s w i t c h v v _ v g d 1 2 v 5 v 1 2 v c h l 8 5 1 5 c h l 8 5 1 5 c h l 8 5 1 5 c h l 8 5 1 5 c h l 8 5 1 5 c h l 8 5 1 5 1 2 v 1 2 v 1 2 v 5 v 1 2 v 5 v v r t h 2
dual output digital multi - phase controller ir356 7 a www.irf.com | ? 20 13 international rectifier | product brief | october 1 , 2013 | v 3.0 4 4 data and specifications subjec t to change without notice. this product will be designed and qualified for the consumer market. qualification standards can be found on irs web site. ir world headquarters: 233 kansas st., el segundo, california 90245, usa tel: (310) 252 - 7105 tac fax: (310) 252 - 7903 visit us at www.irf.com for sales contact information . www.irf.com
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