Datasheet

LT3740
17
3740fc
TYPICAL APPLICATIONS
High Effi ciency Step-Down Converter
Effi ciency vs Load Current
SWB
V
IN
SHDN
XREF
RANGE
V
C
BGDP
BIAS
TGATE
SW
SN
+
BGATE
GND
LT3740
SN
–
PGND
FB
3740 TA02a
3.4µH
1µF
0.47µF
V
OUT
3.3V
10A
V
IN
7V to 20V
M1
HAT2168H
M2
HAT2165H
100µF
s 3
20µF
22pF
22µH
16k
15k
10k
1500pF
22pF
80.6k
255k
2k
1Ω
1Ω
D1
B340A
1Ω
LOAD CURRENT (A)
0
EFFICIENCY (%)
90
94
92
98
96
8
3740 TA02b
88
86
84
82
80
2
4
6
10
V
IN
= 7V
V
IN
= 15V
V
IN
= 20V
V
OUT
= 3.3V