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| LTC3544B_15 Datasheet, PDF (8/18 Pages) Linear Technology – Quad Synchronous Step-Down Regulator | |||
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LTC3544B
Functional Diagrams
3
9
RUN200A RUN300
15
VCC
14
17
GNDA GNDA
16
12
RUN200B
RUN100
SW200A
5
VFB200A
2
POWER
FETs
IBIAS200A
REG200A
SW300
8
VFB300
10
POWER
FETs
IBIAS300
REG300
0.8V
REF
SHDN
OSC
RUN
LOGIC
VREF
OSC
PVIN
7
PGND
6
IBIAS100
POWER
FETs
REG100
SW100
13
VFB100
11
IBIAS200B
POWER
FETs
REG200B
SW200B
4
VFB200B
1
3544B FD01
OSC
SLOPE
COMP
VREF 0.8V +
EA
VFBx
â
ICOMP
PVIN
5Ω
RUNx
OSC
SQ
RQ
SWITCHING
LOGIC
AND
BLANKING
CIRCUIT
ANTI-
SHOOT-
THRU
IRCMP
SWx
PGND
3544B FD02
3544bfb
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