參數(shù)資料
型號: 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用指南的AMD - K6處理器電源設計應用指南
文件頁數(shù): 51/64頁
文件大?。?/td> 1056K
代理商: 21103
41
21103G/0—February 1999
AMD-K6
Processor Power Supply Design
Micro Linear
ML4902
The ML4902 is designed to be configured as a synchronous buck
converter with a minimum of external components. The
ML4902 can generate voltages between 1.8V and 3.5V from a
5V supply at currents up to 14 A. Figure 21 shows an ML4902
reference design capable of 12 A at 90% efficiency. Table 14 on
page 42 shows the bill of materials.
Figure 21. Micro Linear ML4902 Switching Power Supply Design
Contact Information
Micro Linear Corporation
2092 Concourse Dr.
San Jose, CA 95131
Tel: (408) 433-5200
Fax: (408) 432-0295
www.microlinear.com
VID4
PROTECT
VDD
VCC
N DRV H
N DRV L
PWR GND
N/C
COMP
ISENSE
VFB
R5
100
12V
IN
5V
IN
C4-C9
L1
1.4μH
R4
100k
C13
1nF
C14
220nF
16V
D0
D1
D2
D3
RANGE
SHDN
N/C
PWR GOOD
VREF
GND
C20
22μF
25V
C10
220nF
16V
C12
220nF
16V
R3
1M
OUTEN
VID0
VID1
VID2
VID3
PWRGD
C3
C1
C2
Q1, Q2
2X IRF7413
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
R2
1k
C11
220nF
16V
Q3, Q4
2X IRF7413
V
CC
P
V
SS
C1 - C9 - 1500μF, 6.3V, Sanyo 6MV1500GX
C15, C19 - 100nF ceramic
U1
ML4902
C15
C19
R1
33
C22
1nF
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