LTC1773 LINER [Linear Technology], LTC1773 Datasheet - Page 17

• Manufacturer Part Number: LTC1773
• Description: Synchronous Step-Down DC/DC Controller
• Manufacturer: LINER [Linear Technology]

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