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參數(shù)資料
| 型號： | PT6948N |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 6 A SWITCHING REGULATOR, 400 kHz SWITCHING FREQ-MAX, SMA27 |
| 封裝： | SIP-27 |
| 文件頁數(shù)： | 10/11頁 |
| 文件大?。?/td> | 216K |
| 代理商： | PT6948N |
For technical support and more information, see inside back cover or visit www.ti.com
Application Notes
1.8
(0.0)
1.85
(1.6)k
1.9
(3.7)k
1.95
(6.1)k
2.0
(9.0)k
2.05
(12.6)k
2.1
(17.0)k
2.15
(22.7)k
2.2
(30.3)k
2.25
(41.0)k
2.3
(57.0)k
2.35
(83.7)k
2.4
(137.0)k
2.45
(297.0)k
2.5
(0.0)k
2.55
(2.0)k
167.0k
#
2.6
(4.3)k
77.0k
#
2.65
(6.9)k
47.0k
#
2.7
(10.0)k
32.0k
#
2.75
(13.6)k
23.0k
#
2.8
(18.0)k
2.85
(23.3)k
2.9
(30.0)k
2.95
(38.6)k
3.0
(50.0)k
3.1
(90.0)k
3.2
(210.0)k
3.3
3.4
70.0k
3.5
25.0k
3.6
10.0k
3.7
2.5k
R1/R3 = (Blue), R2/R4 = Black
# See Note 3
Vo1 Bus
Series Pt #
PT6941/42/43/44
PT6946/47/48
Adj. Resistor
(R1)/R2
Vo(nom)
3.3V
2.5V
Va(req’d)
Table 1
ADJUSTMENT RANGE AND FORMULA PARAMETERS
Vo1 Bus
Vo2 Bus (2)
Series Pt #
PT6941/42/43/44
PT6946/47/48
PT6941
PT6942/46
PT6943/47
PT6944/48
Adj. Resistor
(R1)/R2
(R3)/R4
Vo(nom)
3.3V
2.5V
1.8V
1.5V
1.2V
Va(min)
2.5V *
1.8V *
1.5V *
1.2V *
1.15V
Va(max)
3.5V
2.5V
3.1V
2.2V
2.4V
1.5V
Rs (k
)
20.0
13.0
20.0
10.0
29.4
Ref. Note 4:
* (R1) = Zero-ohm link
(R3) = Zero-ohm link
1.15
(20.6)k
1.2
(0.0)k
1.25
(4.0)k
151.0k
1.3
(10.0)k
60.6k
1.35
(20.0)k
30.6k
1.4
(40.0)k
15.6k
1.45
(100.0)k
6.6k
1.5
(0.0)k
0.0k
1.55
(6.0)k
170.0k
1.6
(15.0)k
80.0k
1.65
(30.0)k
50.0k
1.7
(60.0)k
35.0k
1.75
(150.0)k
26.0k
1.8
(0.0)k
19.6k
1.85
(1.6)k
160.0k
15.7k
1.9
(3.7)k
70.0k
12.5k
1.95
(6.1)k
40.0k
10.0k
2.0
(9.0)k
25.0k
8.0k
2.05
(12.6)k
16.0k
6.4k
2.1
(17.0)k
10.0k
5.0k
2.15
(22.7)k
5.7k
3.9k
2.2
(30.3)k
2.5k
2.9k
2.25
(41.0)k
2.0k
2.3
(57.0)k
1.3k
2.35
(83.7)k
0.6k
2.4
(137.0)k
0.0k
2.45
(297.0)k
2.5
2.55
167.0k
2.6
77.0k
2.65
47.0k
2.7
32.0k
2.75
23.0k
2.8
17.0k
2.85
12.7k
2.9
9.5k
2.95
7.0k
3.0
5.0k
3.1
2.0k
Vo2 Bus
Series Pt #
PT6941
PT6942/46
PT6943/47
PT6944/48
Adj. Resistor
(R3)/R4
Vo(nom)
2.5V
1.8V
1.5V
1.2V
Va(req’d)
Table 2
ADJUSTMENT RESISTOR VALUES
PT6940 Series
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