參數(shù)資料
型號(hào): ISL6440A
廠商: Intersil Corporation
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: Advanced PWM and Triple Linear Power Controller for Gateway Applications
中文描述: 先進(jìn)的PWM和三線性電源控制器,用于網(wǎng)關(guān)應(yīng)用
文件頁(yè)數(shù): 15/16頁(yè)
文件大小: 749K
代理商: ISL6440A
15
ISL6440A 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
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)
for the latest information.
VID1
VID2
VID3
VID4
SS
GND
VCC
+5V
IN
VID0
+12V
IN
PGND
VSEN1
PGOOD
LGATE
UGATE
OCSET
PHASE
Q1, 2
2xHUF76143S3S
POWERGOOD
FB
COMP
V
OUT2
VSEN2
DRIVE2
Q3
DRIVE3
VSEN3
DRIVE4
C25, 26
2x1000
μ
F
V
OUT3
V
OUT4
C23, 24
2x1000
μ
F
C12-19
8x1000
μ
F
ISL6440A
Q4
L2
+
+
+
+
+
C7
1
μ
F
L1
C1-6
C9
1
μ
F
C8
R1
V
OUT1
(1.3V-3.5V)
R2
10.2K
R3
C20
0.22
μ
F
C21
10pF
C22
2.7nF
C27
0.1
μ
F
C10, 11
2x1000
μ
F
1
μ
H
6x1000
μ
F
1000pF
4.2
μ
H
1.62K
GND
(3.3V
IN
OR 1.5V)
(1.5V)
(1.8V)
VSEN4
TYPEDET
SELECT
+3.3V
IN
R5
499K
R4
150K
SD
FIX
1.0K
Q5
U1
1
2
3
4
5
6
7
8
9
10
11
12
13
16
15
14
17
18
19
20
21
22
23
24
25
26
27
28
FAULT/RT
VAUX
HUF76107D3S
HUF76107D3S
HUF76121D3S
FIGURE 11. POWER SUPPLY APPLICATION CIRCUIT FOR A MICROPROCESSOR COMPUTER SYSTEM
ISL6440A
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