HIP6006

FN4306 Rev.3.00

Page 10 of 12

April 1, 2005

HIP6006 DC-DC Converter Application Circuit

The figure below shows an application circuit of a DC-DC

Converter for a microprocessor application. Detailed

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

and circuit board description, can be found in application note

AN9722. See Intersil’s home page on the web:

www.intersil.com.

HIP6006

RT

FB

COMP

SS

REF

-

+

GND

+

-

OSC

VCC

VIN

C1-3

L1

C6-9

0.1

F

2x 1

F

0.1

F

1

F

15k

1k

3x 680

F

4x 1000

F

UGATE

OCSET

PHASE

BOOT

SPARE

CR1

Q1

3.01k

1000pF

CR2

C13

R1

R3

R4

C15

R5

C14

C12

C17-18

C19

R6

C20

4148

U1

RTN

12VCC

14

2

10

9

8

7

4

5

1

3

SPARE

PGND

LGATE

12

11

PVCC

13

JP1

Q2

1206

1206

MBR

340

RTN

ENABLE

R2

1k

COMP

TP1

PHASE

TP2

6

R7

10k

MONITOR AND

PROTECTION

+

-

+

-

C16

0.01

F

33pF

SPARE

Component Selection Notes:

C1-C3 - 3 each 680

F 25W VDC, Sanyo MV-GX or equivalent

C6-C9 - 4 each 1000

F 6.3W VDC, Sanyo MV-GX or equivalent

L1 - Core: Micrometals T50-52B; Winding: 10 Turns of 17AWG

CR1 - 1N4148 or equivalent

CR2 - 3A, 40V Schottky, Motorola MBR340 or equivalent

Q1, Q2 - Intersil MOSFET; RFP25N05

FIGURE 11. DC-DC CONVERTER APPLICATION CIRCUIT