LT3467AIS67 Ver la hoja de datos (PDF) - Linear Technology
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LT3467AIS67 Datasheet PDF : 18 Pages
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LT3467/LT3467A
TYPICAL APPLICATIONS
9V, 18V, –9V Triple Output TFT-LCD Bias Supply with Soft-Start
D1 D2
VIN
3.3V
VSHDN
C1
2.2μF
3.3V
0V
C7
0.1μF
L1
4.7μH
VIN
SW
SHDN
LT3467
SS
FB
GND
C1: X5R OR X7R, 6.3V
C2,C3, C5, C6: X5R OR X7R, 10V
C4: X5R OR X7R, 25V
D1 TO D4: PHILIPS BAT54S OR EQUIVALENT
D5: PHILIPS PMEG 2005
L1: PANASONIC ELT5KT4R7M
C3
0.1μF
D5
C2
0.1μF
D4
D3
18V
C4 10mA
1μF
9V
220mA
R1
124k
C5
10μF
R2
20k
C6
1μF
–9V
10mA 3467 TA06a
9V OUTPUT
5V/DIV
–9V OUTPUT
5V/DIV
Start-Up Waveforms
18V OUTPUT
10V/DIV
IL1
0.5A/DIV
2ms/DIV
3467 TA06b
8V, 23V, –8V Triple Output TFT-LCD Bias Supply with Soft-Start
D1 D2
D3 D4
C3
0.1μF
VIN
3.3V
VSHDN
C1
2.2μF
3.3V
0V
C9
0.1μF
L1
4.7μH
D7
VIN
SW
SHDN
LT3467
SS
FB
GND
C2
0.1μF
C1: X5R OR X7R, 6.3V
C2 TO C4, C7, C8: X5R OR X7R, 10V
D5
C5: X5R OR X7R, 16V
C6: X5R OR X7R, 25V
D1 TO D6: PHILIPS BAT54S OR EQUIVALENT
D6
D7: PHILIPS PMEG 2005
L1: PANASONIC ELT5KT4R7M
C4
0.1μF
C5
0.1μF
8V
270mA
R1
113k
C7
10μF
R2
21k
C8
1μF
3467 TA07a
–8V
10mA
23V
10mA
C6
1μF
8V OUTPUT
5V/DIV
–8V OUTPUT
5V/DIV
23V OUTPUT
10V/DIV
IL1
0.5A/DIV
Start-Up Waveforms
2ms/DIV
3467 TA07b
3467afe
13
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