LT3757(RevB) 查看數據表（PDF） - Linear Technology
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LT3757 Datasheet PDF : 36 Pages
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Typical Applications
8V to 16V Input, 24V/2A Output Boost Converter
VIN
8V TO 16V
CIN
10µF
R3
25V
200k
VIN
X5R
SHDN/UVLO
R4
43.2k
LT3757
SYNC
GATE
RT
41.2k
300kHz
CC2
100pF
CSS
0.1µF
SENSE
RT
SS
FBX
VC
GND INTVCC
RC
22k
CC1
6.8nF
CVCC
4.7µF
10V
X5R
L1
10µH
D1
M1
RS
0.01Ω
1W
R2
226k
1%
+
R1
16.2k
1%
COUT1
47µF
35V
s4
VOUT
24V
2A
COUT2
10µF
25V
X5R
CIN, COUT2: MURATA GRM31CR61E106KA12
COUT1: KEMET T495X476K035AS
D1: ON SEMI MBRS340T3G
L1: VISHAY SILICONIX IHLP-5050FD-01 10µH
M1: VISHAY SILICONIX Si4840BDP
3757 TA03a
LT3757
Efficiency vs Output Current
100
90
VIN = 8V
80
VIN = 16V
70
60
50
40
30
0.001
0.01
0.1
1
OUTPUT CURRENT (A)
10
3757 TA03b
Load Step Response at VIN = 12V
VOUT
500mV/DIV
(AC)
IOUT 1.6A
1A/DIV 0.4A
500µs/DIV
3757 TA03c
3757fb
29
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