lt3579iufd-trpbf Linear Technology Corporation, lt3579iufd-trpbf Datasheet - Page 37
lt3579iufd-trpbf
Manufacturer Part Number
lt3579iufd-trpbf
Description
Lt3579/lt3579-1 6a Boost/inverting Dc/dc Converter With Fault Protection Features
Manufacturer
Linear Technology Corporation
Datasheet
1.LT3579IUFD-TRPBF.pdf
(40 pages)
- Current page: 37 of 40
- Download datasheet (514Kb)
TYPICAL APPLICATION
100
90
80
70
60
50
40
30
20
0
Effi ciency and Power Loss
2MHz, Boost Converter with Output Disconnect Generates a 5V Output from 2.8V to 4.2V Input
0.5
LOAD CURRENT (A)
1
2.8V TO 4.2V
1.5
V
IN
= 3.3V
V
IN
2
C
C
D1: CENTRAL SEMI CTLSH3-30M833
L1: VISHAY IHLP-2020BZ-01-R47
M1: SILICONIX SI7123DN
IN
OUT1
3579 TA27
: 10μF , 16V, X7R, 1206
C
10μF
IN
, C
2.5
100k
OUT
2.4
2.1
1.8
1.5
1.2
0.9
0.6
0.3
0
43.2k
: 22μF , 16V, X7R, 1210
0.47μH
L1
V
SHDN
FAULT
RT
SYNC
IN
SW1 SW2
LT3579
GND
CLKOUT
GATE
SS
FB
V
D1
C
22nF
43.5k
C
22μF
OUT1
AC COUPLED
Transient Response with 0.8A to 1.8A to 0.8A
200mV/DIV
47pF
1A/DIV
1A/DIV
10k
I
V
LOAD
OUT
M1
Output Load Step (V
I
L
6.34k
2.2nF
3579 TA26
LT3579/LT3579-1
C
22μF
V
5V
2A
OUT
OUT
100μs/DIV
IN
= 3.3V)
3579 TA28
37
35791f
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