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參數(shù)資料
| 型號： | US3022CW |
| 廠商： | Unisem Group |
| 英文描述： | 4 BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS FOUR LDO CONTROLLER |
| 中文描述： | 4位可編程同步降壓外加4個LDO控制器 |
| 文件頁數(shù)： | 7/7頁 |
| 文件大?。?/td> | 61K |
| 代理商： | US3022CW |
US3022
4-7
Rev. 1.0
11/2/99
TYPICAL APPLICATION
5VSB
6MV1500DX
23
28
16
1
9
11
18
19
15
14
17
12
3
5
6
7
8
20
21
22
24
25
26
27
4
13
US3022
Vref(2V)
VID3
VID2
VID1
VID0
6MV1500DX
2
10
Fault/Rt
The Vref(2V) can be used to provide reference for
the ACPI regulatos. In this application the ACPI
regulators are designed using op-amp and discrete
transistors.
C4
220PF
Q1
IRL3103S
+
C2
1500uf
+
C3
1500uf
+
C7
1500uf
R2
5.1
Q3
IRL3103S
R3
5.1
+
C8
1500uf
+
C9
1500uf
+
C10
1500uf
+
C11
1500uf
+
C12
1500uf
R1
2.21K
L2
2.5UH
C5
1UF
L1
1UH
+
C1
680uf
Q2
IRL3103S
+
C13
680uf
+
C6
220UF
C14
1UF
C18
0.1uF
+
C16
680uf
+
C15
680uf
Q6
PMBT2222A
+
C17
220uf
C19
0.1uF
Q5
MJD200
Q4
MJD200
VCORE
12V
+5Vin
Vout2(1.5V or 3.3V)
3.3Vin
Vout3 (1.5V)
TYPE DETECT#
Vout4(1.8V)
PGood
Vout5(2.5V)
Figure 2 - Typical application of US3022 for an on board DC-DC converter providing power for the Vcore , GTL+,
1.8V chip set supply, 2.5V clock supply as well as auto select AGP supply for the next generation PC applica-
tions.
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| US3026A-S08-T | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:DUAL-CHANNEL USB POWER SWITCH AND OVER-CURRENT PROTECTION |
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