LT3579IUFD-1-PBF データシートの表示（PDF） - Linear Technology
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LT3579IUFD-1-PBF Datasheet PDF : 40 Pages
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LT3579/LT3579-1
TYPICAL APPLICATION
1.2MHz, 5V to -12V Inverting Converter
VIN
L1
3.3μH
C1
4.7μF
L2
3.3μH
VOUT
–12V
5V
D1
1.2A
SW1 SW2
143k
VIN
FB
SHDN
GATE
100k
LT3579
CIN
FAULT
CLKOUT
22μF
RT
VC
SYNC GND SS
71.5k
0.22μF
27pF 20k
1nF
COUT
10μF
s2
CIN: 22μF, 16V, X7R, 1210
C1: 4.7μF, 25V, X7R, 1206
COUT: 10μF, 25V, X7R, 1210
D1: DIODES INC B230A
L1, L2: COOPER BUSSMANN DRQ125-3R3-R
3579 TA14
Efficiency and Power Loss
100
90
80
70
60
50
40
30
20
0
3.2
2.8
2.4
2
1.6
1.2
0.8
0.4
0.25 0.5 0.75
LOAD CURRENT (A)
0
1
1.25
3579 TA15
Transient Response with 0.5A to 1A to 0.5A Output Load Step
VOUT
500mV/DIV
AC COUPLED
IL1 + IL2
1A/DIV
ILOAD
1A/DIV
100μs/DIV
3579 TA16
35791f
33
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