lt3580ems8e-trpbf Linear Technology Corporation, lt3580ems8e-trpbf Datasheet - Page 24
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)
- Current page: 24 of 28
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LT3580
TYPICAL APPLICATIONS
24
AC COUPLED
0.5V/DIV
0.5A/DIV
Transient Response with 400mA to 500mA to 400mA
V
OUT
I
L
5V to 12V Boost Converter Switches at 2.5MHz and Uses a Tiny 4mm × 4mm × 1.7mm Inductor
Output Load Step
100μs/DIV
V
5V
IN
C1, C2: 4.7μF , 25V, X5R, 1206
D1: MICROSEMI UPS120
L1: COILCRAFT LPS4018-332ML
C1
4.7μF
Effi ciency and Power Loss vs Load Current
95
90
85
80
75
70
60
65
55
50
3580 TA07c
35.7k
0
SHDN
RT
V
SYNC
100
IN
LT3580
3.3μH
LOAD CURRENT (mA)
L1
200
SS
SW
GND
300
VC
FB
0.1μF
D1
130k
400
10k
5V/DIV
1A/DIV
1V/DIV
V
2.2nF
V
SHDN
500
OUT
3580 TA07b
I
L
500mA LOAD
600
47pF
1400
1200
1000
800
600
400
200
0
3580 TA07a
C2
4.7μF
Start-Up Waveforms
V
12V
500mA
OUT
2ms/DIV
3580 TA07d
3580fa
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