Datasheet

14
LTC3251/
LTC3251-1.2/LTC3251-1.5
32511215fb
TYPICAL APPLICATIO S
U
MD0 MD1
LTC3251
V
IN
19
C1
+
1µF
1µF
C1
–
GND
7
8
6
10
2
OFF ON
V
IN
3.3V
3
4
5,11
V
OUT
C2
+
C2
–
FB
1µF
10µF
V
OUT
= 1.4V
I
OUT
≤ 350mA
4.12k
5.36k
3251 TA03
MD0 MD1
LTC3251
V
IN
19
C1
+
1µF
1µF
1-CELL
Li-Ion
OR
3-CELL
NiMH
OFF ON
C1
–
GND
7
8
6
10
2
3
4
5,11
V
OUT
C2
+
C2
–
FB
1µF
10µF
V
OUT
= 0.9V
500mA
73.2k
5pF
536k
3251 TA05
4.7µF
0.9V Output Continuous/Burst Mode Operation with Shutdown
3.3V to 1.4V Conversion, Continuous
Spread Spectrum Operation with Shutdown