PI1004-1 datasheet pdf

Picor Corporation • picorpower.comPI1004 Data Sheet Rev. 2.5 Page 1 of 16 PI1004-1 PI1004-2 Programmable Point-of-Load Controller with 6-bit VID 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 Vin PRM-AL VTM PI1004 Vout Vf Vref VID DAC } D0-D5 + – ZVS + – V•I K + – Figure 1 - Basic connection in FPA application. 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 programmableoffset 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 soft start
• • Optimized for VRM/VRD 10.X specifications
• • 20 MHz Gain bandwidth amplifier
• • Enable input
• •Supports FPA
• •Intel
• •Workstation CPU Power
• •Isolated DC-DC Converters
• • 24-Lead (4mm x 4mm) QFN