 English |
|
|
|
|
|
|
|
| LT8570-1_15 Datasheet, PDF (13/34 Pages) Linear Technology – Boost/SEPIC/Inverting DC/DC Converter with 65V Switch, Soft-Start and Synchronization | |||
| |||
| ◁ |
Applications Information
LT8570/LT8570-1
VOUT
500mV/DIV
AC-COUPLED
ISTEP
50mA/DIV
VOUT
500mV/DIV
AC-COUPLED
ISTEP
50mA/DIV
IL1
100mA/DIV
RC = 1.04k
50µs/DIV
8570 F03a
(3a) Transient Response Shows Excessive Ringing
VOUT
500mV/DIV
AC-COUPLED
ISTEP
50mA/DIV
IL1
100mA/DIV
RC = 2.09k
50µs/DIV
8570 F03b
(3b) Transient Response Is Better
IL1
100mA/DIV
RC = 6.19k
50µs/DIV
8570 F03c
(3c) Transient Response Is Well Damped
Figure 3. Transient Response
22µH
D1
VIN
5V
10k
VOUT
12V
125mA
VIN
SW
RFBX
130k
SHDN
FBX
CIN
1µF
LT8570
SYNC
VC
COUT
2.2µF
RT GND SS
RT
56.2k
CSS
0.1µF
RC
6.19k
CC
2.2nF
CF
47pF
8570 F04
Figure 4. 1.5MHz, 5V to 12V Boost Converter
For more information www.linear.com/LT8570
85701f
13
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese