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| LT8580_15 Datasheet, PDF (25/32 Pages) Linear Technology – Boost/SEPIC/Inverting DC/DC Converter with 1A, 65V Switch, Soft-Start and Synchronization | |||
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Typical Applications
1.5MHz, 5V to 12V Output Boost Converter
VIN
L1
15µH
D1
5V
10k
VOUT
12V
200mA
CIN
2.2µF
VIN
SW
SHDN
FBX
LT8580
SYNC
VC
RT GND SS
130k
6.04k
56.2k
0.22µF
3.3nF
COUT
4.7µF
47pF
8580 TA02a
L1: WÃRTH 15µH WE-LQS 74404054150
D1: DIODES INC. SBR1U40LP
CIN: 2.2µF, 35V, 0805, X7R
COUT: 4.7µF, 16V, 0805, X7R
100
90
80
70
60
50
40
30
20
0
Efficiency and Power Loss
480
420
380
300
240
180
120
EFFICIENCY 60
POWER LOSS
0
50
100
150
200
LOAD CURRENT (mA)
8580 TA02b
50mA to 150mA to 50mA Output Load Step
ISTEP
100mA/DIV
VOUT
500mV/DIV
AC-COUPLED
IL1
500mA/DIV
100µs/DIV
8580 TA02c
For more information www.linear.com/LT8580
LT8580
8580f
25
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