LTC1871-1 LINER [Linear Technology], LTC1871-1 Datasheet - Page 11
LTC1871-1
Manufacturer Part Number
LTC1871-1
Description
High Effi ciency, Synchronous, 4-Switch Buck-Boost Controller
Manufacturer
LINER [Linear Technology]
Datasheet
1.LTC1871-1.pdf
(28 pages)
- Current page: 11 of 28
- Download datasheet (393Kb)
BLOCK DIAGRAM
V
IN
+
6V
STBYMD
FCB
SS
RUN
V
EXTV
INTV
SGND
IN
CC
CC
100k
1.2μA
4(V
5.7V
1.2V
FB
)
–
+
INTERNAL
SUPPLY
V
LDO
REG
SLOPE
6V
REF
–
–
–
+
+
+
V
OSENSE
I
I
I
CMP
LIM
REV
0.86V
0.74V
4(V
SHDN
–
+
–
+
RST
FB
)
FCB
FCB
CLK
OV
EA
RUN/
BOOST
LOGIC
LOGIC
SS
BUCK
OSCILLATOR
PHASE DET
–
+
–
+
INTV
INTV
0.86V
0.80V
PLLFLTR
V
BOOST2
BOOST1
CC
CC
SENSE
SENSE
PGOOD
OSENSE
PLLIN
PGND
SW2
SW1
BG2
BG1
TG2
TG1
V
I
50k
TH
FB
+
–
3780 BD
INTV
INTV
R
LP
F
CC
CC
IN
V
C
IN
LP
V
OUT
LTC3780
R
SENSE
11
3780fe
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