Datasheet

LT3505
21
3505fc
V
IN
6V TO 36V
ON OFF
0.1µF
3.3µH
1N4148
36.5k
10µF
3505 TA02
22pF
1µF
20.0k
698k
11.3k
V
OUT
3.3V
MBRM140
10V
CMPZ5240B
GND
22pF
100k
BOOST
FB
V
C
SW
LT3505
V
IN
SHDN
R
T
2.2MHz, 3.3V Step-Down Converter
TYPICAL APPLICATIONS
1.2MHz, 1.8V Step-Down Converter
V
IN
3.6V TO 25V
ON OFF
0.1µF
4.7µH
BAT54
26.1k
22µF
3505 TA03
68pF
120pF
2.2µF
44.2k
1.5M
20.0k
V
OUT
1.8V
1.2A
60.4k
MBRM140
12V
CMPZ5242B
BOOST
FB
V
C
SW
GND
LT3505
V
IN
SHDN
R
T
Input Voltage [V]
5
0.00
Frequency [MHz] / Load Current [A]
0.25
0.75
1.0
1.25
2.50
1.75
15
25
30
LTC3505 • TA02b
0.50
2.00
2.25
1.50
10
20
35
40
Switching
Frequency
Maximum
Load Current
INPUT VOLTAGE (V)
0
Frequency [MHz] / Load Current [A]
0.60
0.80
1.00
15
25
LT3505 • TA03b
0.40
0.20
0.00
5 10 20
1.20
1.40
1.60
Switching
Frequency
Maximum
Load Current