Datasheet

LTC1772B
13
1772bfa
TYPICAL APPLICATIONS
LTC1772B High Effi ciency, Small Footprint 3.3V to 1.8V/0.5A Regulator
I
TH
/RUN
LTC1772B
R4
10k
R1
0.15Ω
R2
100k
R3
80.6k
L1
10μH
M1
D1
C3
220pF
GND
V
FB
6
5
4
1772 TA02
1
2
3
PGATE
V
IN
SENSE
–
C1
10μF
10V
V
IN
3.3V
V
OUT
1.8V
0.5A
C2
47μF
6V
+
C1: TAIYO YUDEN CERAMIC
LMK325BJ106K-T
C2: SANYO POSCAP 6TPA47M
D1: MOTOROLA MBRM120T3
L1: COILTRONICS UP1B-100
M1: Si3443DV
R1: DALE 0.25W