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TL1451A Datasheet, PDF (21/29 Pages) Texas Instruments – DUAL PULSE-WIDTH-MODULATION CONTROL CIRCUITS | |||
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TL1451A
DUAL PULSE-WIDTH-MODULATION CONTROL CIRCUITS
VCC
220 kâ¦
SLVS024E â FEBRUARY 1983 â REVISED NOVEMBER 1999
APPLICATION INFORMATION
470 â¦
150 â¦
L1
0.47 µF
50 kâ¦
33 kâ¦
R1
R2
33 kâ¦
C1
500 pF
Vref
33 kâ¦
33 kâ¦
16 15 14 13 12 11 10 9
TL1451A
1234 56 78
C5
R5
500
pF
470 â¦
33 kâ¦
33 kâ¦
470 â¦
330 pF
R3
C2
Step-Up
Output
R4
470 â¦
220 â¦
1 µF
L2
R6
R7
Step-Down
C4 Output
NOTE A: Values for R1 through R7, C1 through C4, and L1 and L2 depend upon individual application.
Figure 28. High-Speed Dual Switching Regulator
⢠POST OFFICE BOX 655303 DALLAS, TEXAS 75265
21
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