Datasheet

14
LTC1627
3.3V Input to 2.5V/0.5A Regulator
C
SS
0.1µF
C
OUT
†
100µF
6.3V
C
IN
††
22µF
16V
C1
0.1µF
C2
0.1µF
D2
D1
BAT54S**
10µH*
* SUMIDA CD54-100
** ZETEX BAT54S
†
AVX TPSC107M006R0150
††
AVX TPSC226M016R0375
R2
169k
1%
R1
80.6k
1%
C
ITH
47pF
1
2
3
4
8
7
6
5
SYNC/FCB
V
DR
V
IN
SW
I
TH
RUN/SS
V
FB
GND
LTC1627
V
IN
= 3.3V
V
OUT
2.5V
0.5A
1627 TA05
+
+
Single Lithium-Ion to 1.8V/0.3A Regulator
C
ITH
47pF
C
SS
0.1µF
15µH*
1
2
3
4
8
7
6
5
SYNC/FCB
V
DR
V
IN
SW
I
TH
RUN/SS
V
FB
GND
LTC1627
V
IN
≤ 4.2V
V
OUT
1.8V
0.3A
1627 TA01
+
+
C
OUT
**
100µF
6.3V
C
IN
***
22µF
16V
R2
100k
1%
R1
80.6k
1%
* SUMIDA CD54-150
**
AVX TPSC107M006R0150
***
AVX TPSC226M016R0375
TYPICAL APPLICATIO S
U