LTC1772 Linear Technology, LTC1772 Datasheet - Page 12

• Manufacturer Part Number: LTC1772
• Description: Constant Frequency Current Mode Step-Down DC/DC Controller in SOT-23
• Manufacturer: Linear Technology

LTC1772
12
TYPICAL APPLICATIONS
C1: TAIYO YUDEN CERAMIC
C2: SANYO POSCAP 6TPA47M
D1: IR10BQ015
R4
10k
EMK325BJ106MNT
R4
10k
LTC1772 High Efficiency, High Output Current 2.5V/2A Regulator
C3
220pF
C3
220pF
LTC1772 High Efficiency, Small Footprint 1.8V/0.5A Regulator
U
C1: TAIYO YUDEN CERAMIC
C2: SANYO POSCAP 6TPA47M
D1: IR10BQ015
1
2
3
1
2
3
EMK325BJ106MNT
I
GND
V
I
GND
V
TH
TH
FB
FB
/RUN
/RUN
LTC1772
LTC1772
SENSE
SENSE
PGATE
PGATE
L1: MURATA LQN6C-4R7
M1: Si3443DV
R1: DALE 0.25W
V
V
IN
IN
–
–
6
5
4
6
5
4
L1: MURATA LQN6C-4R7
M1: Si3443DV
R1: DALE 0.25W
R1
0.03
M1
R1
0.03
M1
D1
D1
4.7 H
4.7 H
L1
L1
+
+
C1
10 F
10V
C2
47 F
6V
C4
100pF
C1
10 F
10V
C2
47 F
6V
R2
169k
R3
78.7k
R2
100k
R3
80k
1772 TA01
1772 TA02
V
2.5V
TO 9.8V
V
2.5V
2A
V
2.5V
TO 9.8V
V
1.8V
0.5A
IN
OUT
IN
OUT