Datasheet

LTC1877
15
1877fb
TYPICAL APPLICATIONS
Dual Lithium-Ion to 2.5V/0.6A Regulator
Using All Ceramic Capacitors
4-to 6-Cell NiCd/NiMH to 1.8V/0.6A Regulator
Using All Ceramic Capacitors
Externally Synchronized 2.5V/0.6A Regulator
Using All Ceramic Capacitors
Low Noise 2.5V/0.3A Regulator
V
OUT
2.5V/0.6A
220pF
15μH*
887k
412k
C
OUT
***
22μF
CER
LTC1877
RUN
I
TH
V
FB
GND
8
7
6
5
1
2
3
4
PLL LPF
SYNC/MODE
V
IN
SW
V
IN
b 8.4V
1877 TA03
*SUMIDA CD54-150
**TAIYO YUDEN CERAMIC LMK325BJ106MN
***TAIYO YUDEN CERAMIC JMK325BJ226MM
20pF
C
IN
**
10μF
CER
V
OUT
1.8V/0.6A
220pF
10μH*
887k
698k
C
OUT
***
22μF
CER
LTC1877
RUN
I
TH
V
FB
GND
8
7
6
5
1
2
3
4
PLL LPF
SYNC/MODE
V
IN
SW
V
IN
b 9V
1877 TA04
*TOKO D62CB A920CY-100M
**TAIYO YUDEN CERAMIC LMK325BJ106MN
***TAIYO YUDEN CERAMIC JMK325BJ226MM
20pF
C
IN
**
10μF
CER
V
OUT
2.5V/
0.6A
220pF
10μH*
887k
10k
412k
C
OUT
***
22μF
CER
1
2
3
4
V
IN
4V
TO 10V
1877 TA05
*TOKO D62CB A920CY-100M
**TAIYO YUDEN CERAMIC LMK325BJ106MN
***TAIYO YUDEN CERAMIC JMK325BJ226MM
20pF
C
IN
**
10μF
CER
LTC1877
RUN
I
TH
V
FB
GND
8
7
6
5
PLL LPF
SYNC/MODE
V
IN
SW
0.01μF
EXT
CLOCK
700kHz
V
OUT
2.5V/0.3A
220pF
15μH*
887k
412k
C
OUT
***
47μF
6.3V
1
2
3
4
V
IN
2.85V
TO 10V
1877 TA06
*SUMIDA CD54-150
**TAIYO YUDEN CERAMIC LMK325BJ106MN
***SANYO POSCAP 6TPA47M
20pF
C
IN
**
10μF
CER
LTC1877
RUN
I
TH
V
FB
GND
8
7
6
5
PLL LPF
SYNC/MODE
V
IN
SW