3724MPFE 데이터 시트보기 (PDF) - Linear Technology
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3724MPFE Datasheet PDF : 26 Pages
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LT3724
FUNCTIONAL DIAGRAM
VIN
UVLO
(<4V)
8V VCC
VIN
REGULATOR
VIN
1
CIN
VCC
UVLO
(<6V)
3.8V
REGULATOR
INTERNAL
SUPPLY RAIL
RA
SHDN
3
RB
BURST_EN
5
VFB
6
R1 R2
–+
FEEDBACK
REFERENCE
1.231V
–+
gm
ERROR
0.5V
AMP
BST
UVLO
DRIVE
CONTROL
NOL
SWITCH
LOGIC
DRIVE
CONTROL
BOOST
16
CBOOST
BOOSTED
SWITCH
DRIVER
TG
15
SW
14
VCC
12
D2
CVCC
PGND
11
QS
OSCILLATOR
CC2
RC
CC1
VC
7
SOFT-START
DISABLE/BURST
ENABLE
~1V
1.185V
CSS
2µA
4
CSS
SGND
8
R
CURRENT
SENSE
COMPARATOR
SLOPE COMP
GENERATOR
BURST MODE
OPERATION
–+
–+
SENSE+
10
SENSE–
9
M1
L1
RSENSE
D1
D3
(OPTIONAL)
VOUT
COUT
3724 FD
3724fd
8
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