VRM 9.1 DC-DC Converter Design Guidelines
Table Of Contents
- 1 Electrical Specifications
- 1.1 Output Requirements
- 1.1.1 Voltage and Current - REQUIRED
- 1.1.2 Maximum Ratings - EXPECTED
- 1.1.3 Output Voltage Tolerance - REQUIRED
- 1.1.4 No-Load Operation - REQUIRED
- 1.1.5 Turn-on Response Time - EXPECTED
- 1.1.6 Overshoot and Undershoot at Turn-On or Turn-Off - REQUIRED
- 1.1.7 Converter Stability - REQUIRED
- 1.1.8 Current Sharing - REQUIRED
- 1.2 Input Voltage and Current
- 1.3 Control Inputs - REQUIRED
- 1.4 Remote Sense (VO-sen+, VO-sen-) - EXPECTED
- 1.5 Power Good Output (PWRGD) - REQUIRED
- 1.6 VRM Present (VRM-pres) - EXPECTED
- 1.7 Efficiency - PROPOSED
- 1.8 Isolation - PROPOSED
- 1.9 Fault Protection
- 1.1 Output Requirements
- 2 Module Layout Guidelines
- 3 Environmental Conditions
- 3.1 Operating Temperature - PROPOSED
- 3.2 VRM Board Temperature - REQUIRED
- 3.3 Non-Operating Temperature - PROPOSED
- 3.4 Humidity - PROPOSED
- 3.5 Altitude - PROPOSED
- 3.6 Electrostatic Discharge - PROPOSED
- 3.7 Shock and Vibration - PROPOSED
- 3.8 Electromagnetic Compatibility - PROPOSED
- 3.9 Reliability - PROPOSED
- 3.10 Safety - PROPOSED
VRM 9.1 DC-DC Converter Design Guidelines 11
Electrical Specifications
Table 1-2. Intel
®
Xeon™ Processor VRM Regulation Requirements
VRM
Output
Current,
Amperes
Intel
®
Xeon™
Processor with
512 KByte L2 Cache
(VID = 1.5V) Remote
Sense Voltage
Intel
®
Xeon™
Processor
(VID = 1.7V) Remote
Sense Voltage
VRM
Output
Current,
Amperes
Intel
®
Xeon™
Processor with
512 KByte L2 Cache
(VID = 1.5V) Remote
Sense Voltage
Intel
®
Xeon™
Processor
(VID = 1.7V) Remote
Sense Voltage
Vvrm
MAX
Vvrm
Min
Vvrm
MAX
Vvrm
Min
Vvrm
MAX
Vvrm
Min
Vvrm
MAX
Vvrm
Min
0 1.500 1.470 1.700 1.666 42 1.460 1.430 1.660 1.626
2 1.498 1.468 1.698 1.664 44 1.458 1.428 1.658 1.624
4 1.496 1.466 1.696 1.662 46 1.456 1.426 1.656 1.622
6 1.494 1.464 1.694 1.660 48 1.454 1.424 1.654 1.620
8 1.492 1.462 1.692 1.658 50 1.453 1.423 1.653 1.619
10 1.491 1.461 1.691 1.657 52 1.451 1.421 1.651 1.617
12 1.489 1.459 1.689 1.655 54 1.449 1.419 1.649 1.615
14 1.487 1.457 1.687 1.653 56 1.447 1.417 1.647 1.613
16 1.485 1.455 1.685 1.651 58 1.445 1.415 1.645 1.611
18 1.483 1.453 1.683 1.649 60 1.443 1.413 1.643 1.609
20 1.481 1.451 1.681 1.647 62 1.441 1.411 1.641 1.607
22 1.479 1.449 1.679 1.645 64 1.439 1.409 1.639 1.605
24 1.477 1.447 1.677 1.643 66 1.437 1.407 1.637 1.603
26 1.475 1.445 1.675 1.641 68 1.435 1.405 1.635 1.601
28 1.473 1.443 1.673 1.639 70 1.434 1.404 1.634 1.600
30 1.472 1.442 1.672 1.638 72 1.432 1.402 1.632 1.598
32 1.470 1.440 1.670 1.636 74 1.430 1.400 1.630 1.596
34 1.468 1.438 1.668 1.634 76 1.428 1.398 1.628 1.594
36 1.466 1.436 1.666 1.632 78 1.426 1.396 1.626 1.592
38 1.464 1.434 1.664 1.630 80 1.424 1.394 1.624 1.590
40 1.462 1.432 1.662 1.628 82 1.422 1.392 1.622 1.588