Datasheet

LT3580
18
3580fg
APPLICATIONS INFORMATION
Figure 12. Switch-On Phase of an Inverting Converter. L1 and L2 Have Positive dI/dt
Figure 13. Switch-Off Phase of an Inverting Converter. L1 and L2 Currents Have Negative dI/dt
Figure 14. 1.2MHz, 5V to 12V Boost Converter
+
+
L1 L2
C2
–(V
IN
+ ⏐V
OUT
⏐)
SW SWX
D1
Q1
3580 F12
C1 C3 R
LOAD
–V
OUT
V
IN
V
CESAT
+
+
L1 L2
C2
V
IN
+ |V
OUT
|+ V
D
SW SWX
D1
Q1
C1 C3 R
LOAD
–V
OUT
V
IN
V
D
3580 F13
C2
10μF
V
OUT
12V
550mA
L1
4.2μH
D1
130k
V
IN
5V
V
IN
SW
3580 F14
LT3580
75k
10k
SHDN
GND
FB
VC
SYNC SS
RT
1nF
0.1μF
C1
2.2μF
C1: 2.2μF, 25V, X5R, 1206
C2: 10μF, 25V, X5R, 1206
D1: MICROSEMI UPS120
L1: SUMIDA CDR6D23MN-4R2
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