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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 |
| 文件頁數(shù)： | 44/64頁 |
| 文件大?。?/td> | 1056K |
| 代理商： | 21103 |
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34
Power Supply Solutions
AMD-K6
Processor Power Supply Design
21103G/0—February 1999
Linear Technology
LT1553
The LTC1553 is a high-power, high-efficiency (over 95% is
possible) switching regulator for 1.8 V–3.5 V output
applications. It features a 5-bit DAC controlled output voltage,
a precision internal reference that provides output accuracy of
±1.5% at room temperature, load current, and line voltage
shifts. The LTC1553 uses a synchronous switching architecture
(that free-runs at 300 kHz) with two external N-channel output
devices, providing high efficiency. It senses the output current
across the on-resistance of the upper N-channel FET, providing
an adjustable current limit up to 19 A without an external sense
resistor. Fast transient response minimizes the output
decoupling required. The design shown in Figure 18 on page 35
provides 14 A at efficiencies greater than 90%. Table 11 shows
the bill of materials.
Contact Information
Linear Technology Corporation
1630 McCarthy Blvd.
Milpitas, CA 95035-7417
Tel: (408) 432-1900
Fax: (408) 434-0507
www.linear.com
Table 11. Linear LT1553 Bill of Materials
Reference
Description
Part Number
Manufacturer
Cin
1200
μF 6.3V 20% aluminum
electrolytic capacitor
330 uF 6.3 Volt Tantalum
150 pF 50 V 10% NPO chip capacitor
0.1 μF 50 V 10% Y5V chip capacitor
0.01 μF 50 V 10% Y5V chip capacitor
10 μF 35 V 20% tantalum capacitor
10MV1200GX
Sanyo
Cout
C1
Css, Cs, Cvcc, Cvcc
Ccc
Cvcc, Cvcc
TPSE337M006R0100
08055A151KAT1A
08055G104KAT1A
08055G103KAT1A
TPSE106M035
CTX02-13198
12TS-2R5SP
SUD50N03-10
CR21-562J-T
CR21-200J-T
CR21-2701F-T
CR21-8201F-T
LTC1553CG
AVX
AVX
AVX
AVX
AVX
Coiltronics
Panasonic
Siliconix
AVX
AVX
AVX
AVX
LTC
L0
2 μH 18 A inductor
Q1, Q2
Rpu
Rfb
Rmax
Rc
U1
N-Channel MOSFET
5.6k 1/10W 5% chip resistor
20
1/10W 5% chip resistor
2.7k 1/10W 1% chip resistor
8.2k 1/10W 1% chip resistor
20-lead narrow small outline IC
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