11

HIP6005 DC-DC Converter Application Circuit

Figure 12 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 AN9706.

+12V

HIP6005

VSEN

RT

FB

COMP

VID0

VID1

VID2

VID3

OVP

SS

PGOOD

D/A

GND

MONITOR

OSC

VCC

L1 - 1

µH

C1

L2

0.1

µF

2x 1

µF

0.1

µF

0.1

µF

2.2nF

8.2nF

20K

1K

7

µH

5x 1000

µF

9x 1000

µF

0.082

µF

UGATE

OCSET

PHASE

BOOT

20

D1

Q1

2N6394

1.1K

1000pF

D2

F1

2K

+5V

OR

+12V

1

2

3

4

5

6

7

9

10

11

12

13

14

15

19

20

18

AND

PROTECTION

+

-

+

-

Component Selection Notes;

C0 - C9 Each 1000

µF 6.3WVDC, Sanyo MV-GX or Equivalent

C1 - C5 Each 330

µF 25WVDC, Sanyo MV-GX or Equivalent

L2 - Core: Micrometals T60-52; Each Winding: 14 Turns of 17AWG

L1 - Core: Micrometals T50-52; Winding: 6 Turns of 18AWG

D1 - 1N4148 or Equivalent

D2 - 25A, 35V Schottky, Motorola MBR2535CTL or Equivalent

Q1 - Intersil MOSFET; RFP70N03

FIGURE 12. PENTIUM PRO DC-DC CONVERTER

VID4

8

HIP6005