Datasheet
GND
Inhibit
GND
PTN78060W
1
4
6
2
3
Adjust
GND GND
V
O
V
I
V
I
V
O
Inhibit
7
5
Sense
+
C
I
2.2 Fm
Ceramic
R
SET
0.05W
1%
C
100 F
O
m
PTN78060W , PTN78060H
www.ti.com
................................................................................................................................................... SLTS229B – NOVEMBER 2004 – REVISED JUNE 2009
(1) A 0.05-W rated resistor may be used. The tolerance should be 1%, with a temperature stability of 100 ppm/ ° C (or
better). Place the resistor as close to the regulator as possible. Connect the resistor directly between pins 4 and 7
using dedicated PCB traces.
(2) Never connect capacitors from V
O
Adjust to either GND or V
O
. Any capacitance added to the V
O
Adjust pin affects the
stability of the regulator.
Figure 27. PTN78060W V
O
Adjust Resistor Placement
Table 3. PTN78060W Output Voltage Set-Point Resistor Values
V
O
R
SET
V
O
R
SET
V
O
R
SET
V
O
R
SET
2.50 V Open 3.7 V 50.7 k Ω 6.1 V 12.6 k Ω 9.0 V 4.07 k Ω
2.55 V 1.37 M Ω 3.8 V 46.3 k Ω 6.2 V 12.1 k Ω 9.2 V 3.75 k Ω
2.60 V 680 k Ω 3.9 V 42.5 k Ω 6.3 V 11.6 k Ω 9.4 V 3.46 k Ω
2.65 V 451 k Ω 4.0 V 39.3 k Ω 6.4 V 11.1 k Ω 9.6 V 3.18 k Ω
2.70 V 337 k Ω 4.1 V 36.4 k Ω 6.5 V 10.7 k Ω 9.8 V 2.91 k Ω
2.75 V 268 k Ω 4.2 V 33.9 k Ω 6.6 V 10.2 k Ω 10.0 V 2.66 k Ω
2.80 V 222 k Ω 4.3 V 31.6 k Ω 6.7 V 9.85 k Ω 10.2 V 2.42 k Ω
2.85 V 190 k Ω 4.4 V 29.6 k Ω 6.8 V 9.47 k Ω 10.4 V 2.20 k Ω
2.90 V 165 k Ω 4.5 V 27.8 k Ω 6.9 V 9.11 k Ω 10.6 V 1.98 k Ω
2.95 V 146 k Ω 4.6 V 26.2 k Ω 7.0 V 8.76 k Ω 10.8 V 1.78 k Ω
3.00 V 131 k Ω 4.7 V 24.7 k Ω 7.1 V 8.43 k Ω 11.0 V 1.58 k Ω
3.05 V 118 k Ω 4.8 V 23.3 k Ω 7.2 V 8.11 k Ω 11.2 V 1.40 k Ω
3.10 V 108 k Ω 4.9 V 22.1 k Ω 7.3 V 7.81 k Ω 11.4 V 1.22 k Ω
3.15 V 99.1 k Ω 5.0 V 21.0 k Ω 7.4 V 7.52 k Ω 11.6 V 1.05 k Ω
3.20 V 91.5 k Ω 5.1 V 19.9 k Ω 7.5 V 7.24 k Ω 11.8 V 889 Ω
3.25 V 85.0 k Ω 5.2 V 18.9 k Ω 7.6 V 6.97 k Ω 12.0 V 734 Ω
3.30 V 79.3 k Ω 5.3 V 18.0 k Ω 7.7 V 6.71 k Ω 12.2 V 585 Ω
3.35 V 74.2 k Ω 5.4 V 17.2 k Ω 7.8 V 6.46 k Ω 12.4 V 442 Ω
3.40 V 69.8 k Ω 5.5 V 16.4 k Ω 7.9 V 6.22 k Ω 12.6 V 305 Ω
3.45 V 65.7 k Ω 5.6 V 15.6 k Ω 8.0 V 5.99 k Ω
3.50 V 62.1 k Ω 5.7 V 15.0 k Ω 8.2 V 5.55 k Ω
3.55 V 58.9 k Ω 5.8 V 14.3 k Ω 8.4 V 5.14 k Ω
3.60 V 55.9 k Ω 5.9 V 13.7 k Ω 8.6 V 4.76 k Ω
3.65 V 53.2 k Ω 6.0 V 13.1 k Ω 8.8 V 4.40 k Ω
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