參數(shù)資料
型號(hào): 21103
英文描述: AMD-K6 Processor Family Thermal Solutions Application Note AMD-K6 Processor Power Supply Design Application Note
中文描述: 的AMD - K6處理器系列散熱解決方案應(yīng)用指南的AMD - K6處理器電源設(shè)計(jì)應(yīng)用指南
文件頁(yè)數(shù): 40/64頁(yè)
文件大?。?/td> 1056K
代理商: 21103
30
Power Supply Solutions
AMD-K6
Processor Power Supply Design
21103G/0—February 1999
Elantech EL7571
The EL7571 switching regulator is a flexible, high-efficiency,
PWM controller that includes a five bit DAC adjustable output.
This regulator employs synchronous rectification to deliver up
to 15A at efficiencies greater than 85% over a wide range of
supply voltages. (Efficiencies up to 92% can be achieved at
10A.) Figure 16 shows an EL7571 reference design. The VID
code allows the output to be set between 1.3V and 2.05V (in
50mV increments) and 2.1V and 3.5V (in 100mV increments)
with a 1% accuracy. The VID code should be set to 00011 for
3.2V output. Table 9 on page 31 shows the bill of materials for
the EL7571.
Figure 16. Elantec EL7571 Switching Power Supply Design
0.1uF
VOUT
COSC
CSLOPE
OTEN
REF
PWRGD
FB
CS
LSD
LX
HSD
VHI
VIN
330pF
330pF
0.1uF
ENABLE
7.5m
POWER
GOOD
GNDP
VID0
VID1
VID2
VID3
Voltage
I.D.
(VID[0:4])
VINP
GND
VID4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
1uF
C3
C4
C5
Q2
Si4420X2
L1
R1
Q1
Si4420X2
C1
3mF
C7
C6
C2
IC1
12V
5.1uH
6mF
5V
1.3uH
L2
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