PI1004-1 Datasheet, PDF (1/16 Pages) Vicor Corporation – Programmable Point-of-Load Controller with 6-bit VID

PI1004-1
PI1004-2
Programmable Point-of-Load Controller with 6-bit VID
Description
The PI1004 IC combines a Voltage Identification Digital
Input (VID) controlled reference with control and
supervisory functions to accurately set the regulator
output voltage at the point of load, for isolated and CPU
DC-DC converters in desktop and server applications. The
PI1004 feature set is intended to be used in conjunction
with a variety of power architectures, including Factorized
Power Architecture (FPA), to provide CPU power in
accordance with Intel^® VR10.X requirements. The feature
set includes a precision error amplifier for remote
differential sensing of the output voltage, a six bit
programmable VID reference voltage output with 12.5
mV resolution, and flexible adaptive voltage positioning.
The regulation voltage can also be shifted below the VID
range with a programmable offset current. The controller
includes an over-voltage indicator output, an open
collector power-good output, under-voltage lockout and
an externally programmable soft start.
The PI1004 is available in two options; PI1004-1:
Programmable VID offset current and no OVP output. The
VID offset current is used to create an offset to the DAC
output. PI1004-2: OVP output and no VID offset.
Features
• 0.5% Typical initial output voltage accuracy
• Remote differential output voltage sense
• 6 Bit DAC, with 12.5 mV resolution
• 5 V to 12 V Operation
• Power good output with blanking
• Programmable adaptive voltage positioning (AVP)
• Over voltage protection (OVP) output or
programmable VID offset
• Programmable soft start
• Optimized for VRM/VRD 10.X specifications
• 20 MHz Gain bandwidth amplifier
• Enable input
Applications
• Supports FPA
• Intel^® VR10.X CPU Power
• Workstation CPU Power
• Isolated DC-DC Converters
Package
• 24-Lead (4mm x 4mm) QFN
Typical Circuit
PRM-AL
Vin
ZVS
Vref
VTM
V•I
++
Vf
––
K
PI1004
+
} ^VID
DAC
D0-D5
–
Vout
Figure 1 - Basic connection in FPA application.
Picor Corporation • picorpower.com
PI1004 Data Sheet Rev. 2.5 Page 1 of 16