lt3580ems8e-trpbf Linear Technology Corporation, lt3580ems8e-trpbf Datasheet - Page 19
lt3580ems8e-trpbf
Manufacturer Part Number
lt3580ems8e-trpbf
Description
Boost/inverting Dc/dc Converter With 2a Switch, Soft-start, And Synchronization
Manufacturer
Linear Technology Corporation
Datasheet
1.LT3580EMS8E-TRPBF.pdf
(28 pages)
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APPLICATIONS INFORMATION
V
V
IN
IN
+
+
Figure 13. Switch-Off Phase of an Inverting Converter. L1 and L2 Currents Have Negative dI/dt.
C1
C1
Figure 12. Switch-On Phase of an Inverting Converter. L1 and L2 Have Positive dI/dt.
L1
L1
V
IN
V
5V
+ ⏐V
IN
V
CESAT
OUT
C1: 2.2μF , 25V, X5R, 1206
C2: 10μF , 25V, X5R, 1206
D1: MICROSEMI UPS120
L1: SUMIDA CDR6D23MN-4R2
Figure 14. 1.2MHz, 5V to 12V Boost Converter
Q1
Q1
⏐+ V
C1
2.2μF
SW
SW
D
75k
–(V
C2
C2
IN
SHDN
RT
+ ⏐V
V
SYNC
IN
V
D
SWX
OUT
LT3580
SWX
4.2μH
L1
⏐)
D1
D1
SS
SW
GND
VC
FB
0.1μF
D1
130k
L2
L2
10k
1nF
3580 F14
C2
10μF
+
V
12V
550mA
+
OUT
C3
C3
3580 F12
3580 F13
R
R
LOAD
LOAD
–V
–V
OUT
OUT
LT3580
19
3580fa
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