Datasheet

LTC3856
11
3856f
FuncTional DiagraM
–
+
–
++
SLEEP
INTV
CC
0.55V
–
+
–
+
0.5V
SS
–
+
1.22V
RUN
ISET
1.25µA
V
IN
EA
I
TH
R
C
C
C1
C
SS
RUN TK/SS
0.6V
REF
R
S
Q
5V
REG
ISET
ISET
SLOPE RECOVERY
ACTIVE CLAMP
OSC
MODE/SYNC
DETECT
SLOPE
COMPENSATION
UVLO
1
51k
I
THB
1µA
ISET
CLKOUT
FREQ
MODE PHASMDPLLIN
ITEMP
0.6V
BURSTEN
EXTV
CC
I
LIM
–
+
–
+
I
REV
I
CMP
F
–
+
4.7V
F
3k
–
+
–
+
OV
UV
–
+
–
+
–
+
DIFFAMP
0.54V
V
FB
PGOOD
PGND
C
VCC
C
B
M1
M2
V
OUT
L1
INTV
CC
V
IN
C
OUT
BG
SENSE
–
SENSE
+
SW
TG
BOOST
INTV
CC
DIFFOUT
DIFFN
SENSE1
+
SENSE1
–
SENSE2
+
SENSE2
–
DIFFP
SGND
AVP
0.66V
R1
R
PRE-AVP
40k 40k
40k
R
AVP
40k
R2
SWITCH
LOGIC
AND
ANTISHOOT-
THROUGH
OV
RUN
ON
FCNT
PLL-SYNC
TEMPSNS
+
C
IN
+
V
IN
D
B
3856 FD