LT8580
12
8580fa
For more information www.linear.com/LT8580
applicaTions inForMaTion
(3a) Transient Response Shows Excessive Ringing
Figure 3. Transient Response
(3b) Transient Response Is Better
(3c) Transient Response Is Well Damped
Figure 4. 1.5MHz, 5V to 12V Boost Converter
V
OUT
500mV/DIV
AC-COUPLED
I
L1
200mA/DIV
I
STEP
100mA/DIV
100µs/DIV
8580 F03a
V
OUT
500mV/DIV
AC-COUPLED
I
L1
200mA/DIV
I
STEP
100mA/DIV
8580 F03b
V
OUT
500mV/DIV
AC-COUPLED
I
L1
200mA/DIV
I
STEP
100mA/DIV
100µs/DIV
8580 F03c
C
OUT
4.7µF
V
OUT
12V
200mA
L1
15µH
D1
R
FBX
130k
V
IN
5V
V
IN
SW
8580 F04
LT8580
10k
R
C
6.04k
R
T
56.2k
SHDN
GND
FBX
VCSYNC
SSRT
C
C
3.3nF
C
F
47pF
C
SS
0.22µF
C
IN
2.2µF
