Datasheet

LTC3872
16
3872fc
For more information www.linear.com/LTC3872
High Efficiency 3.3V Input, 12V Output Boost Converter
Typical applicaTions
I
LOAD
1A/DIV
STEP FROM
500mA TO 1.5A
I
L
5A/DIV
V
OUT
12V
AC-COUPLED
100µs/DIV
3872 F10
I
TH
IPRG
GND
V
FB
V
IN
SW
NGATE
LTC3872
M1
3872 F09
RUN/SS
23.2k
4.7M
11.8k
1%
107k
1%
C
OUT1
: TAIYO YUDEN TMK325B7226MM
L1: COILTRONICS DR125-2R2
M1: VISHAY Si4408DY
0.1µF
C
IN
10µF
C
OUT1
22µF
×2
2.2nF
100pF
C
OUT2
120µF
L1
2.2µH
V
IN
3.3V
V
OUT
12V
1.5A
+
PDS1040