Datasheet

LT3580
23
3580fg
TYPICAL APPLICATIONS
5V to 12V Boost Converter Switches at 2.5MHz and Uses a Tiny 4mm × 4mm × 1.7mm Inductor
Efficiency and Power Loss
vs Load Current
Transient Response with 400mA to
500mA to 400mA Output Load Step
Start-Up Waveforms
C2
4.7μF
V
OUT
12V
500mA
L1
3.3μH
D1
130k
V
IN
5V
V
IN
SW
3580 TA07a
LT3580
35.7k
10k
SHDN
GND
FB
VC
SYNC SS
RT
2.2nF
0.1μF
47pF
C1
4.7μF
C1, C2: 4.7μF, 25V, X5R, 1206
D1: MICROSEMI UPS120
L1: COILCRAFT LPS4018-332ML
LOAD CURRENT (mA)
0
50
EFFICIENCY (%)
POWER LOSS (W)
55
65
70
75
400
95
3580 TA07b
60
200
100
500
300 600
80
85
90
0
200
400
600
1400
800
1000
1200
I
L
0.5A/DIV
V
OUT
0.5V/DIV
AC COUPLED
100μs/DIV
3580 TA07c
I
L
1A/DIV
V
OUT
5V/DIV
V
SHDN
1V/DIV
2ms/DIV500mA LOAD
3580 TA07d
Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.