PT6680 Datasheet, PDF (4/6 Pages) Texas Instruments – 5 Amp 18-36V Input Integrated Switching Regulator

Application Notes continued
PT6680 Series
Table 2
PT6680 ADJUSTMENT RESISTOR VALUES
Series Pt #
PT6682
PT6681
Current
5Adc
5Adc
Vo (nom)
V_a (req’d)
1.8
2.5Vdc
(1.4)kΩ
3.3Vdc
1.9
(2.9)kΩ
2.0
(5.0)kΩ
2.1
(8.1)kΩ
2.2
(13.3)kΩ
(1.0)kΩ
2.3
(23.7)kΩ
(2.3)kΩ
2.4
(54.9)kΩ
(3.9)kΩ
2.5
(5.8)kΩ
2.6
59.9kΩ
(8.4)kΩ
2.7
28.7kΩ
(11.7)kΩ
2.8
18.3kΩ
(16.5)kΩ
2.9
13.1kΩ
(23.6)kΩ
3.0
10.0kΩ
(35.4)kΩ
3.1
7.9kΩ
(59.0)kΩ
3.2
6.4kΩ
(130.0)kΩ
3.3
5.3kΩ
3.4
4.4kΩ
81.5kΩ
3.5
3.8kΩ
38.3kΩ
3.6
3.2kΩ
23.8kΩ
3.7
2.7kΩ
16.6kΩ
3.8
2.3kΩ
12.3kΩ
3.9
2.0kΩ
9.4kΩ
4.0
1.7kΩ
7.4kΩ
4.1
1.4kΩ
5.8kΩ
4.2
1.2kΩ
4.6kΩ
4.3
1.0kΩ
3.7kΩ
4.4
2.9kΩ
4.5
2.2kΩ
4.6
1.7kΩ
4.7
1.2kΩ
4.8
4.9
5.0
5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.8
5.9
6.0
6.1
6.2
6.3
6.4
6.5
R1 = (Blue) R2 = Black
PT6683
5Adc
5.0Vdc
(1.6)kΩ
(2.3)kΩ
(3.1)kΩ
(4.0)kΩ
(5.1)kΩ
(6.2)kΩ
(7.6)kΩ
(9.1)kΩ
(10.9)kΩ
(13.0)kΩ
(15.6)kΩ
(18.7)kΩ
(22.6)kΩ
(27.6)kΩ
(34.2)kΩ
(43.6)kΩ
(57.6)kΩ
(80.9)kΩ
(128.0)kΩ
(268.0)kΩ
88.4kΩ
41.7kΩ
26.1kΩ
18.4kΩ
13.7kΩ
10.6kΩ
8.4kΩ
6.7kΩ
5.4kΩ
4.4kΩ
3.5kΩ
2.8kΩ
2.2kΩ
1.7kΩ
1.2kΩ
Series Pt #
Current
Vo (nom)
V_a (req’d)
6.0
6.2
6.4
6.6
6.8
7.0
7.2
7.4
7.6
7.8
8.0
8.2
8.4
8.6
8.8
9.0
9.2
9.4
9.6
9.8
10.0
10.2
10.4
10.6
10.8
11.0
11.2
11.4
11.6
11.8
12.0
12.2
12.4
12.6
12.8
13.0
13.2
13.4
13.6
13.8
14.0
14.2
14.5
15.0
15.5
16.0
16.5
17.0
PT6684
5Adc
9.0Vdc
(6.9)kΩ
(9.2)kΩ
(11.9)kΩ
(14.0)kΩ
(18.6)kΩ
(23.0)kΩ
(28.3)kΩ
(35.0)kΩ
(43.5)kΩ
(55.0)kΩ
(71.0)kΩ
(95.0)kΩ
(135.0)kΩ
(215.0)kΩ
(455.0)kΩ
64.8kΩ
26.1kΩ
13.1kΩ
6.7kΩ
2.8kΩ
0.2kΩ
PT6686
4Adc
12.0Vdc
(31.7)kΩ
(36.1)kΩ
(41.2)kΩ
(47.1)kΩ
(54.1)kΩ
(62.6)kΩ
(72.8)kΩ
(85.7)kΩ
(102.0)kΩ
(124.0)kΩ
(155.0)kΩ
(201.0)kΩ
(278.0)kΩ
(432.0)kΩ
(895.0)kΩ
94.8kΩ
41.1kΩ
23.1kΩ
14.2kΩ
8.8kΩ
5.2kΩ
2.7kΩ
0.7kΩ
PT6685
4Adc
15.0Vdc
(25.8)kΩ
(28.3)kΩ
(31.1)kΩ
(34.1)kΩ
(37.3)kΩ
(40.9)kΩ
(44.9)kΩ
(49.3)kΩ
(54.3)kΩ
(59.8)kΩ
(66.1)kΩ
(73.3)kΩ
(81.6)kΩ
(91.3)kΩ
(103.0)kΩ
(117.0)kΩ
(133.0)kΩ
(154.0)kΩ
(181.0)kΩ
(217.0)kΩ
(268.0)kΩ
(343.0)kΩ
(570.0)kΩ
42.3kΩ
14.8kΩ
5.6kΩ
1.1kΩ
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