HIP6521 View Datasheet(PDF) - Renesas Electronics
Part Name
Description
Manufacturer
HIP6521 Datasheet PDF : 13 Pages
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HIP6521
HIP6521 DC/DC Converter Application Circuit
Figure 9 shows an application circuit of a power supply for a
microprocessor computer system. The power supply provides
the system memory voltage (VOUT1), the AGP bus voltage
(VOUT4), the clock voltage (VOUT2), and the chip set core
voltage (VOUT3) from +5VDUAL. For detailed information on the
circuit, including a Bill-of-Materials and circuit board description,
see Application Note AN9908. Also see Intersil’s web page
(www.intersil.com) for the latest information.
+5VDUAL
GND
L1
1.2H
+3.3VIN
VOUT2
Q3
FZT649
(2.5V)
C8 +
330F
+3.3VDUAL
VOUT3
Q4
2SD1802
(1.8V)
+ C13
1000F
VOUT4
(1.5V)
Q5
2SD1802
+ C16
1000F
C1-3 +
3x1200F
R2
12.7K
DRIVE2 1
FB2 2
R3
5.90K
R4
9.09K
DRIVE3
15
FB3 16
R5
7.15K
R9
7.50K
DRIVE4 13
FB4
14
R10
8.45K
VCC
11
C4
1F
C5
1000pF
R1
12
OCSET 12K
7 BOOT
C6
1F
D1
MA732
8 UGATE
6 PHASE
U1
HIP6521
10 LGATE
9 PGND
C7
0.47F
L2
Q1,2
HUF76129D3S
25H
C9-12 +
4x1000F
3 FB
4 COMP
C14
10pF
5
GND
C15 R7
22nF 45.3K
R6
1.50K
R8
698
VOUT1
(2.5V)
To FB2
S3
To FB4
To OCSET
S5
FIGURE 9. POWER SUPPLY APPLICATION CIRCUIT FOR A MICROPROCESSOR COMPUTER SYSTEM
FN4837 Rev.5.00
Oct 16, 2006
Page 12 of 13
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