FAN5091 Fairchild Semiconductor, FAN5091 Datasheet - Page 5

• Manufacturer Part Number: FAN5091
• Description: Two Slice Interleaved Synchronous Buck Converter
• Manufacturer: Fairchild Semiconductor

PRODUCT SPECIFICATION
Notes:
1. Steady State Voltage Regulation includes Initial Voltage Setpoint, Output Ripple and Output Temperature Drift and is
2. As measured at the converter’s VFB sense point. For motherboard applications, the PCB layout should exhibit no more than
3. Using the VFB pin for remote sensing of the converter’s output at the load, the converter will be in compliance with Intel’s
Table 1. Output Voltage Programming Codes
Note:
1. 0 = VID pin is tied to GND.
REV. 1.0.0 5/10/01
1 = VID pin is open.
measured at the converter’s VFB sense point.
0.5m trace resistance between the converter’s output capacitors and the CPU. Remote sensing should be used for optimal
performance.
VRM 9.0 specification of +70, -70mV.
VID4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
VID3
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
VID2
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
VID1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
VID0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
V
OUT
1.100V
1.125V
1.150V
1.175V
1.200V
1.225V
1.250V
1.275V
1.300V
1.325V
1.350V
1.375V
1.400V
1.425V
1.450V
1.475V
1.500V
1.525V
1.550V
1.575V
1.600V
1.625V
1.650V
1.675V
1.700V
1.725V
1.750V
1.775V
1.800V
1.825V
1.850V
OFF
to CPU
FAN5091
5