Datasheet

LT3757/LT3757A
29
3757afe
For more information www.linear.com/LT3757
Typical applicaTions
8V to 16V Input, 24V/2A Output Boost Converter
Efficiency vs Output Current Load Step Response at V
IN
= 12V
SENSE
LT3757
V
IN
V
IN
8V TO 16V
C
IN
10µF
25V
X5R
C
VCC
4.7µF
10V
X5R
V
OUT
24V
2A
R
S
0.01Ω
1W
M1
R
T
41.2k
300kHz
GATE
FBX
GND
INTV
CC
SHDN/UVLO
SYNC
RT
SS
VC
R3
200k
R4
43.2k
C
SS
0.1µF
C
C2
100pF
R
C
22k
C
C1
6.8nF
L1
10µH
D1
3757 TA04a
R2
226k
1%
R1
16.2k
1%
C
OUT1
47µF
35V
×4
C
OUT2
10µF
25V
X5R
+
C
IN
, C
OUT2
: MURATA GRM31CR61E106KA12
C
OUT1
: KEMET T495X476K035AS
D1: ON SEMI MBRS340T3G
L1: VISHAY SILICONIX IHLP-5050FD-01 10µH
M1: VISHAY SILICONIX Si4840BDP
OUTPUT CURRENT (A)
0.001
EFFICIENCY (%)
30
50
40
60
70
80
90
100
0.01
0.1 1
3757 TA04b
10
V
IN
= 8V
V
IN
= 16V
500µs/DIV
V
OUT
500mV/DIV
(AC)
1.6A
0.4A
I
OUT
1A/DIV
3757 TA04c
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