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PT6930 Datasheet, PDF (4/7 Pages) Texas Instruments – 5V TO 3.3V/2.5V 25 WATT DUAL OUTPUT INTEGRATED SWITCHING REGULATOR | |||
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Application Notes continued
PT6920/PT6930 Series
Table 2
PT6920/PT6930 ADJUSTMENT RESISTOR VALUES
Output Bus
Series Pt#
Standard Case
Excalibur Case
Vo1
PT6921/6922
PT6931/6932
Vo2
PT6921
PT6931
PT6922
PT6932
Adj Resistor
Vo(nom)
(R3)/R4
3.3Vdc
(R1)/R2
2.5Vdc
(R1)/R2
1.5Vdc
Va(reqâd)
1.2
(0.0)kâ¦
1.25
(3.3)kâ¦
1.3
(8.2)kâ¦
1.35
(16.3)kâ¦
1.4
(32.6)kâ¦
1.45
(81.4)kâ¦
1.5
1.55
189.0kâ¦
1.6
91.1kâ¦
1.65
58.6kâ¦
1.7
42.3kâ¦
1.75
32.6kâ¦
1.8
(0.0)k⦠26.0kâ¦
1.85
(1.6)k⦠21.4kâ¦
1.9
(3.5)k⦠17.9kâ¦
1.95
(5.8)k⦠15.2kâ¦
2.0
(8.5)k⦠13.0kâ¦
2.05
(11.8)k⦠11.3kâ¦
2.1
(16.0)k⦠9.8kâ¦
2.15
(21.4)k⦠8.5kâ¦
2.2
(28.5)k⦠7.5kâ¦
2.25
(38.5)k⦠6.5kâ¦
2.3
(3.4)kâ¦
(53.5)k⦠5.7kâ¦
2.35
(4.8)kâ¦
(78.5)k⦠5.0kâ¦
2.4
(6.5)kâ¦
(129.0)k⦠4.4kâ¦
2.45
(8.3)kâ¦
(279.0)k⦠3.8kâ¦
2.5
(10.3)kâ¦
3.3kâ¦
2.55
(12.6)kâ¦
189.0k⦠2.8kâ¦
2.6
(15.2)kâ¦
88.5k⦠2.4kâ¦
2.65
(18.2)kâ¦
55.2k⦠2.0kâ¦
2.7
(21.8)k⦠See Note 3
38.5k⦠1.6kâ¦
2.75
(26.0)kâ¦
28.5k⦠1.3kâ¦
2.8
(31.0)kâ¦
21.8k⦠1.0kâ¦
2.85
(37.1)kâ¦
17.1k⦠0.7kâ¦
2.9
(44.8)kâ¦
13.5k⦠0.5kâ¦
2.95
(54.6)kâ¦
10.7k⦠0.2kâ¦
3.0
(67.8)kâ¦
8.5k⦠0.0kâ¦
3.05
(86.2)kâ¦
3.1
(114.0)kâ¦
3.15
(160.0)kâ¦
3.2
(252.0)kâ¦
3.25
(528.0)kâ¦
3.3
3.4
111.0k⦠See Note 5
3.5
49.6kâ¦
3.6
29.0kâ¦
R1/R3 = (Blue) R2/R4 = Black
PT6933
(R1)/R2
1.8Vdc
(0.0)kâ¦
(1.2)kâ¦
(2.7)kâ¦
(4.5)kâ¦
(6.7)kâ¦
(9.5)kâ¦
(13.3)kâ¦
(18.7)kâ¦
(26.7)kâ¦
(40.0)kâ¦
(66.7)kâ¦
(147.0)kâ¦
197.0kâ¦
96.7kâ¦
63.3kâ¦
46.7kâ¦
36.7kâ¦
30.0kâ¦
25.3kâ¦
21.7kâ¦
18.9kâ¦
16.7kâ¦
14.9kâ¦
13.3kâ¦
12.1kâ¦
11.0kâ¦
10.0kâ¦
9.2kâ¦
8.4kâ¦
7.8kâ¦
7.2kâ¦
6.7kâ¦
6.2kâ¦
5.8kâ¦
5.4kâ¦
5.0kâ¦
For technical support and more information, see inside back cover or visit www.ti.com
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