ISL6262A Datasheet, PDF (11/28 Pages) Intersil Corporation – Two-Phase Core Controller Santa Rosa, IMVP-6+

ISL6262A
Typical Performance Curves 0.36µH Filter Inductor and 4 x 330µF Output SP Caps and 24 x 22µF Ceramic Caps (Continued)
V_OUT
LOAD TRANSIENT
VID3
V_OUT
PHASE1,
PHASE2
DYNAMIC VID
ACTIVE MODE
FIGURE 14. LOAD STEP-UP RESPONSE AT THE CPU
SOCKET MPGA479, 35A LOAD STEP @ 200A/µs,
2 PHASE CCM
FIGURE 15. VID3 CHANGE OF 010X000 FROM 1V TO 1.1V
WITH DPRSLPVR = 0, DPRSTP# = 1, PSI# = 1
V_OUT
LOAD TRANSIENT
FIGURE 16. LOAD DUMP RESPONSE AT THE CPU SOCKET
MPGA479, 35A LOAD STEP @ 200A/µs, 2 PHASE
CCM
V_OUT
VID3
PHASE1,
PHASE2
DYNAMIC VID
ACTIVE MODE
FIGURE 17. VID3 CHANGE OF 010X000 FROM 1.1V TO 1V
WITH DPRSLPVR = 0, DPRSTP# = 1, PSI# = 1
PSI#
DROP PHASE IN
ACTIVE MODE
V_CORE
PHASE1
PSI#
V_CORE
ADD PHASE IN
ACTIVE MODE
PHASE1
PHASE2
FIGURE 18. 2-CCM TO 1-CCM UPON PSI# ASSERTION WITH
VID LSB CHANGE, AT DPRSLPVR = 0,
DPRSTP# = 1, I_LOAD = 10A
11
PHASE2
FIGURE 19. 1-CCM TO 2-CCM UPON PSI# DEASSERTION
WITH VID LSB CHANGE AT DPRSLPVR = 0,
DPRSTP# = 1
FN6343.1
December 23, 2008