參數(shù)資料
型號(hào): PT6947N
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: PT6947N
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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