HIP6014

FN4420 Rev.2.00

Page 11 of 12

March 2000

HIP6014 DC-DC Converter Application Circuit

Figure 11 shows an application circuit of a DC-DC Converter

for an Intel Pentium Pro microprocessor. Detailed information

on the circuit, including a complete Bill-of-Materials and circuit

board description, can be found in Application Note AN9672.

Although the Application Note details the HIP6004, the same

evaluation platform can be used to evaluate the HIP6014.

+12V

+VO

PGND

HIP6014

VSEN

RT

FB

COMP

VID0

VID1

VID2

VID3

OVP

SS

PGOOD

D/A

GND

MONITOR

OSC

VCC

C1

L2

CO

0.1

F

2x 1

F

0.1

F

0.1

F

2.2nF

8.2nF

20K

1.33K

3

H

5x 1000

F

9x 1000

F

0.1

F

LGATE

UGATE

OCSET

PHASE

BOOT

15

D1

Q1

Q2

2N6394

1K

1000pF

D2

F1

2K

VIN =

+5V

OR

+12V

1

2

3

4

5

6

7

9

10

11

12

13

14

15

16

17

19

20

18

AND

PROTECTION

+

-

+

-

Component Selection Notes:

C0 - C9 - Each 1000F 6.3W VDC, Sanyo MV-GX or Equivalent

C1 - C5 - Each 330F 25W VDC, Sanyo MV-GX or Equivalent

L2 - Core: Micrometals T50-52B; Each Winding: 10 Turns of 16AWG

L1 - Core: Micrometals T50-52; Winding: 5 Turns of 18AWG

D1 - 1N4148 or Equivalent

D2 - 3A, 40V Schottky, Motorola MBR340 or Equivalent

Q1, Q2 - Intersil MOSFET; RFP70N03

FIGURE 11. PENTIUM PRO DC-DC CONVERTER

8

VID4

L1 - 1H