DATASHEET
ISL68147 FN8880
Rev.2.00
Jul 14, 2017 Digital Dual Output, 7-Phase Configurable, PWM Controller with PMBus
for Cavium
The ISL68147 is a digital dual output, flexible multiphase
(X+Y ≤ 7) PWM controller developed to support the latest
Cavium CN99xx server class processors. The ISL68147
supports the PMbus1.3 specification and meets the latest Intel
server-class transient performance specifications. Either
output can be configured to support any desired phase
assignments up to a maximum of seven phases across the two
outputs (X+Y). For example, 6+1, 5+2, 4+2, 3+3, 3+2, or even
a single output operation as a 7+0 configuration. With full
digital control, this new generation of controllers ushers in
design flexibility by supporting any microprocessor, FPGA, or
Digital ASIC rail requirements that includes adjustable load
setting. The ISL68147 uses the Intersil proprietary linear
synthetic digital current modulation scheme to achieve the
industry’s best combination of transient response and ease of
tuning while addressing the challenges of modern multiphase
designs.
Device configuration and telemetry monitoring is …