参数资料
型号: TPS40222DRPTG4
厂商: TEXAS INSTRUMENTS INC
元件分类: 稳压器
英文描述: 3.5 A SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO6
封装: 3 X 3 MM, GREEN, PLASTIC, VSON-6
文件页数: 3/27页
文件大小: 662K
代理商: TPS40222DRPTG4
www.ti.com
SLUS642A – OCTOBER 2005 – REVISED JANUARY 2006
APPLICATION INFORMATION (continued)
Table 2. Capacitor Selection(1)
INDUCTOR
CMIN (F)
5-VIN RIPPLE
fC (kHz)
fC(kHz)
CLEAD
VALUE
(PM > 50
° at
CURRENT (mA)
TJ = -40°C
TJ = 25°C
TJ = 125°C
VALUE (pF)
(
H)
-40
°C)
OUTPUT VOLTAGE VOUT = 3.3 V
1.8
Not Recommended(2)
9
125
101
68
omitted
2.2
340
21
285
247
92
270
12
98
77
52
omitted
3.3
230
28
144
112
67
330
15
80
62
41
omitted
4.7
160
38
111
85
52
470
16
74
58
38
omitted
5.6
140
40
103
79
47
470
OUTPUT VOLTAGE VOUT = 2.5 V
13
116
93
63
omitted
1.8
550
23
169
133
81
330
15
102
81
54
omitted
2.2
370
26
147
114
65
330
17
91
71
48
omitted
3.3
300
28
134
102
56
270
20
78
61
41
omitted
4.7
210
38
106
81
47
470
23
68
53
35
omitted
5.6
180
34
106
79
43
330
OUTPUT VOLTAGE VOUT = 1.8 V
20
105
84
56
omitted
1.8
580
30
137
109
68
470
21
100
80
54
omitted
2.2
470
32
129
101
62
470
25
86
67
45
omitted
3.3
320
35
115
88
53
470
30
72
56
37
omitted
4.7
220
39
99
75
44
470
33
65
51
34
omitted
5.6
190
40
94
71
41
470
OUTPUT VOLTAGE VOUT = 0.8 V
1.8
470
50
94
75
50
2.2
390
52
91
72
48
3.3
260
60
79
62
42
n/a
4.7
180
70
68
53
36
5.6
150
75
63
49
33
(1)
(2)
For VOUT > 3.3 V use an inductor with a value greater than or equal to 2.2 H.
11
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