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LT3757 Datasheet(PDF) 29 Page - Analog Devices

Part # LT3757
Description  Boost, Flyback, SEPIC and Inverting Controller
PDF  38 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LT3757 Datasheet(HTML) 29 Page - Analog Devices

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LT3757/LT3757A
29
Rev. G
For more information www.analog.com
TYPICAL APPLICATIONS
8V to 16V Input, 24V/2A Output Boost Converter
Efficiency vs Output Current
Load Step Response at VIN = 12V
SENSE
LT3757
VIN
VIN
8V TO 16V
CIN
10µF
25V
X5R
CVCC
4.7µF
10V
X5R
VOUT
24V
2A
RS
0.01
1W
M1
RT
41.2k
300kHz
GATE
FBX
GND INTVCC
SHDN/UVLO
SYNC
RT
SS
VC
R3
200k
R4
43.2k
CSS
0.1µF
CC2
100pF
RC
22k
CC1
6.8nF
L1
10µH
D1
3757 TA04a
R2
226k
1%
R1
16.2k
1%
COUT1
47µF
35V
×4
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
OUTPUT CURRENT (A)
0.001
30
50
40
60
70
80
90
100
0.01
0.1
1
3757 TA04b
10
VIN = 8V
VIN = 16V
500µs/DIV
VOUT
500mV/DIV
(AC)
1.6A
0.4A
IOUT
1A/DIV
3757 TA04c



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