LT3436 Просмотр технического описания (PDF) - Linear Technology
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LT3436 Datasheet PDF : 16 Pages
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LT3436
APPLICATIONS INFORMATION
INPUT
5V C3
4.7µF
CERAMIC
L1
3.9µH
OPEN
OR
HIGH
= ON
VIN
VSW
LT3436
SHDN
FB
SYNC GND VC
C2
10nF
R3
4.7k
D1
B220A
R1
90.9k
R2
10k
C4
1%
470pF
†MAXIMUM OUTPUT CURRENT IS SUBJECT TO THERMAL DERATING.
OUTPUT
12V
0.8A†
C1
22µF
CERAMIC
L1
D1
MINIMIZE
LT3436,
C1, D1 LOOP
VOUT
KELVIN SENSE
VOUT
INPUT
C3
GND
R3
C4
C2
KEEP FB AND VC
COMPONENTS
AWAY FROM
HIGH FREQUENCY,
HIGH INPUT
COMPONENTS
U1
R2 R1
C1
GND
PLACE FEEDTHROUGHS
AROUND GROUND PIN FOR
GOOD THERMAL CONDUCTIVITY
SOLDER EXPOSED
GROUND PAD
TO BOARD
Figure 6. Typical Application and Suggested Layout (Topside Only Shown)
3436fa
10
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