Datasheet

LTC1773
17
1773fb
TYPICAL APPLICATIONS
U
1773 TA07
1
2
3
4
5
10
9
8
7
6
R
SENSE
0.01Ω
47pF
220pF
0.1µF
0.1µF
1µF
0.01µF
30k
100k
1%
80.6k
1%
100pF
V
OUT2
3.3V
1A
V
OUT3
2.5V
150mA
V
OUT1
1.8V
6A
3.3V ≤ V
IN
≤ 6V
LTC1773
RUN/SS
SYNC/FCB
GND
SENSE
–
V
IN
TG
I
TH
V
FB
BG
SW
T1
2.44µH
1:1
C
IN
150µF
6.3V
C
SEC
47µF
6.3V
Si7540DP
C
OUT
680µF
4V
×2
C
IN
: PANASONIC SPECIAL POLYMER
C
OUT
: KEMET T510687K004AS
T1: BH ELECTRONICS 510-1007
R
SENSE
: IRC LR2512-01-R010-J
C
SEC
: TAIYO YUDEN LMK432F476ZM
100pF
D2*
MBRS340T3
*NOTE: D2 NOT NECESSARY.
IF REMOVED, EFFICIENCY DROPS BY 1%
+
MBRM120T3
249k
1%
80.6k
1%
LT1762-2.5
IN
SHDN
8
5
OUT
SENSE
BYP
GND
1
2
3
10µF
+
+
Figure 11. 750kHz Single Lithium-Ion to 2.5V/1A Regulator
Figure 12. Triple Output 1.8V/6A, 2.5V/150mA,and 3.3V/1A Application
1773 TA06
1
2
3
4
5
10
9
8
7
6
R
SENSE
0.05Ω
47pF
220pF
0.1µF
0.1µF
30k
169k
1%
80.6k
1%
100pF
V
OUT
2.5V
1A
2.7V ≤ V
IN
≤ 4.2V
LTC1773
RUN/SS
SYNC/FCB
GND
SENSE
–
V
IN
TG
I
TH
V
FB
BG
SW
C
IN
47µF
6.3V
Si6803DQ
4.7µF
6.3V
C
OUT
47µF
6.3V
C
IN
, C
OUT
: SANYO POSCAP 6TPA47M
L1: SUMIDA CDRH5D28 3R0
R
SENSE
: IRC LR1206-01-R050-J
100pF
750kHz CLK
L1
3µH
+
+