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HIP6019 DC-DC Converter Application Circuit
Figure 15 shows an application circuit of a power supply for
a microprocessor computer system. The power supply
provides the microprocessor core voltage (V
OUT1
), the I/O
voltage (V
OUT2
), the GTL bus voltage (V
OUT3
) and clock
generator voltage (V
OUT4
) from +5V
DC
and +12V
DC
. For
detailed information on the circuit, including a Bill-of-
Materials and circuit board description, see Application Note
AN9800. Also see Intersil’s web page
(http://www.intersil.com) or Intersil AnswerFAX
(407-724-7800) document # 99800 for the latest information.
VID1
VID2
VID3
VID4
SS
GND
VCC
+5V
IN
VID0
+12V
IN
PGND
VSEN1
PGOOD
LGATE1
UGATE1
PHASE1
OCSET1
Q1
HUF76139S3S
Q2
HUF76139S3S
POWERGOOD
FB1
COMP1
V
(3.3V)
VSEN2
UGATE2
OCSET2
PHASE2
Q3
CR2
MBR2535CTL
FB2
COMP2
GATE3
FB3
VOUT4
FB4
C47
270
μ
F
V
OUT3
(GTL = 1.5V)
V
OUT4
(2.5V)
C43-46
4x1000
μ
F
C24-36
7x1000
μ
F
HIP6019
Q4
L3
+
+
+
+
+
C16
1
μ
F
L1
F1
C1-4
C14-15
2x1
μ
F
C18
R2
V
OUT1
(1.8 TO 3.5V)
R4
4.99K
R8
C40
C41
C42
R10
R9
C48
0.039
μ
F
R11
R12
10K
R13
R14
10K
C19-23
5x1000
μ
F
L2
R3
HUF76137S3S
C37
R5
C38
R7
C39
1
μ
H
4x1000
μ
F
C17
1000pF
R1
1000pF
1.21K
1.21K
0.1
μ
F
10pF
0.68
μ
F
R21
4.99K
3.32K
220K
5.2
μ
H
2.9
μ
H
0.68
μ
F
10pF
0.01
μ
F
2.21K
150K
732K
GND
1.87K
10K
HUF75307D3S
R6
5.11K
VID1
VID2
VID3
VID4
VID0
30A
FAULT/RT
9
1
2
15
10
11
18
19
16
14
13
28
23
8
27
26
25
24
22
21
20
7
6
5
4
3
12
17
FIGURE 15. APPLICATION CIRCUIT
HIP6019