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| 型號(hào)： | AND8079D |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | A Low Cost DDR Memory Power Supply Using the NCP1571 Synchronous Buck Converter and a LM358 Based Linear Voltage Regulator |
| 中文描述： | 一種低成本的DDR記憶體電源使用NCP1571同步降壓轉(zhuǎn)換器和基于線性穩(wěn)壓器1 LM358 |
| 文件頁(yè)數(shù)： | 16/20頁(yè) |
| 文件大?。?/td> | 150K |
| 代理商： | AND8079D |
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AND8079/D
http://onsemi.com
16
Table 2. Demonstration Board Bill of Materials
Item
Quantity
Reference
Part
Part No.
Package
Mfg.
Comments
1
4
C1, C2, C3,
C5
1800 F, 10 V
MBZ Series
see data sheet
Rubycon
C5 is provisional
2
7
C7, C8, C10,
C11, C20,
C21, C23
1800 F, 6.3 V
MBZ Series
see data sheet
Rubycon
C7, C20 and C21
are provisional
3
7
C4, C9, C12,
C14, C16,
C17, C22
0.1 F
-
SMT 1206
-
-
4
1
C6
100 pF
-
SMT O805
-
-
5
1
C18
0.15 F
-
SMT 1206
-
-
6
1
C13
0.01 F
-
SMT O805
-
-
7
1
C15
1.0 F
-
SMT O805
-
-
8
1
C19
2.0 F
-
SMT O805
-
-
9
1
L1
1.0 H
DO3316P-102HC
see data sheet
Coilcraft
-
10
1
L2
2.2 H
DO5022P-222HC
see data sheet
Coilcraft
-
11
3
Q1, Q2, Q3
N-Channel
Mosfet
MTB1306
D2PAK
ON
Semiconductor
-
12
1
Q4
N-Channel
Mosfet
NTD4302
DPAK Bent
Lead
ON
Semiconductor
-
13
1
Q5
P-Channel
Mosfet
MTD20P03HDL
DPAK Bent
Lead
ON
Semiconductor
-
14
1
R1
10 ohm
-
SMT O805
-
-
15
1
R2
47 Kohm
-
SMT O805
-
-
16
1
R3
20 Kohm
-
SMT O805
-
-
17
1
R4
13 Kohm
-
SMT O805
-
-
18
2
R5, R6
10 Kohm
-
SMT O805
-
-
19
1
R7
1.0 Kohm
-
SMT O805
-
-
20
1
R8
200 ohm
-
SMT O805
-
-
21
1
R9
100 ohm
-
SMT O805
-
-
22
1
U1
Sync. Buck
Controller
NCP1571
SO-8
ON
Semiconductor
-
23
1
U2
Op-Amp
LM358DMR2
Micro-8
ON
Semiconductor
-
24
1
U3
LDO
Regulator
MC33375ST-2.5T3
SOT-223
ON
Semiconductor
U3 is provisional
25
1
D1
Schottky
Diode
MBRM110LT
PowerMite
ON
Semiconductor
D1 is provisional
NOTE:
The provisional components were not used in the verification of the reference design.
Acknowledgement
The author would like to acknowledge Tod Schiff’s
assistance in designing the linear V
dd
circuit.
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