LTC1771
TYPICAL APPLICATIO S
U
3.3V to 2.5V/1A Regulator with Burst Mode Operation Enabled
0.01µF
1
2
3
4
8
7
6
5
RUN/SS
MODE
SENSE
220pF
10k
I
TH
1000pF
LTC1771
V
FB
V
IN
V
IN
3.3V
GND
PGATE
R
+
+
SENSE
C
TO 12V
IN
0.1Ω
22µF
Si3443DV
25V
22µH
1M
1%
1.02M
1%
V
2.5V
1A
OUT
C
OUT
5pF
UPS5817
150µF
6.3V
1771 TA01
5V/2A Regulator with Burst Mode Operation Disabled
0.01µF
1
8
7
6
5
RUN/SS
MODE
SENSE
220pF
10k
2
I
TH
1000pF
LTC1771
3
4
V
V
FB
IN
V
IN
5.5V
GND
PGATE
+
+
C
R
TO 18V
IN
SENSE
22µF
0.05Ω
Si6447DQ
25V
22µH
1M
1%
3.09M
1%
V
5V
2A
OUT
C
OUT
5pF
UPS5817
150µF
6.3V
1771 TA04
12