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): 53/64頁(yè)
文件大小: 1056K
代理商: 21103
43
21103G/0—February 1999
AMD-K6
Processor Power Supply Design
Fairchild
RC5051
The RC5051 shown in Figure 22 combines a switch-mode
DC-to-DC controller with a reference DAC in a single package.
The DAC provides a mechanism to adjust the DC-to-DC
converter output between 1.3V and 3.5V, which allows one
motherboard design to accommodate several different
processors. Table 15 on page 44 shows the bill of materials for
the RC5051. This design provides up to 15A at an 80%
efficiency.
Figure 22. Fairchild RC5051 Power Supply Design
L2
DS1
L1
COUT*
C5
1.3uH
.1uF
2.5uH
CIN*
RSENSE*
C1
0.1uF
CEXT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Vo
VCC
PWRGD
VID4
VID3
VID2
VID1
VID0
VREF
GND
+12V
+5V
MBRS320
Q2
Q1
D1
1N4735A
C3
1uF
C4
1uF
C8
0.1uF
C2
0.1uF
R2
47
C7
0.1uF
C6
0.1uF
R1
10K
RC5051
*Refer to BOM for values of
RSENSE, COUT and CIN
ENABLE
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