HIP6021A_01 INTERSIL [Intersil Corporation], HIP6021A_01 Datasheet - Page 15

• Manufacturer Part Number: HIP6021A_01
• Description: Advanced PWM and Triple Linear Power Controller
• Manufacturer: INTERSIL [Intersil Corporation]

HIP6021A DC-DC Converter Application Circuit
Figure 11 shows an application circuit of a power supply for a
microprocessor computer system. The power supply provides
the microprocessor core voltage (VOUT1), the AGP bus
voltage (VOUT2), the GTL bus voltage (VOUT3), and the
(3.3V
+12V
V
IN
V
V
+3.3V
(1.5V)
(1.8V)
+5V
OUT2
OUT3
OUT4
TYPEDET
GND
OR 1.5V)
HUF76107D3S
IN
IN
IN
FIGURE 11. POWER SUPPLY APPLICATION CIRCUIT FOR A MICROPROCESSOR COMPUTER SYSTEM
+
HUF76107D3S
Q4
+
+
C23, 24
2x1000μF
C10, 11
2x1000μF
C25, 26
2x1000μF
Q5
15
1μH
L1
HUF76121D3S
Q3
6x1000μF
FAULT/RT
C1-6
DRIVE2
SELECT
DRIVE3
DRIVE4
VSEN4
VSEN2
VSEN3
VAUX
+
FIX
SD
13
16
1
10
11
18
19
15
14
9
2
HIP6021A
HIP6021A
VCC
U1
28
17
GND
memory voltage (VOUT4) from +3.3V, +5VDC, and +12VDC.
For detailed information on the circuit, including a Bill-of-
Materials and circuit board description, see Application Note
AN9836. Also see Intersil’s web page (http://www.intersil.com).
23
27
26
25
24
22
21
20
12
C7
1μF
8
7
6
5
4
3
COMP
VID0
VID1
VID2
VID3
VID4
OCSET
PHASE
VSEN1
PGOOD
UGATE
FB
SS
LGATE
PGND
1000pF
2.7nF
1.0K
C22
C8
R1
10pF
C21
C27
0.1μF
150K
Q1, 2
2xHUF76143S3S
R4
1.62K
R3
499K
C9
1μF
R5
R2
10.2K
8x1000μF
4.2μH
C12-19
L2
0.22μF
C20
POWERGOOD
+
(1.3V-3.5V)
V
OUT1