Datasheet

LTC3866
10
3866fb
FUNCTIONAL BLOCK DIAGRAM
–
+
–
++
SLEEP
INTV
CC
0.55V
–
+
–
+
0.5V
SS
–
+
1.22V
RUN
1.25µA
V
IN
EA
ITH
R
C
C
C1
C
SS
RUN TK/SS
0.6V
REF
S
R
Q
5.5V
REG
ACTIVE CLAMP
OSC
MODE/SYNC
DETECT
SLOPE
COMPENSATION
UVLO
1
R
I
THB
1µA/5.5µA
FREQ
CLKOUT
MODE/PLLIN
ITEMP
0.6V
BURST EN
EXTV
CC
ILIM
–
+
–
+
I
COMP
I
REV
F
–
+
4.7V
F
–
+
–
+
OV
UV
–
+
DIFFAMP
–
+
AMP
0.54V
R2
R1
V
FB
PGOOD
PGND
C
VCC
C
B
M1
M2
V
OUT
V
IN
C
OUT
D
B
BG
SNS
–
SNSA
+
SW
TG
BOOST
INTV
CC
DIFFN
DIFFP
SNSD
+
3866 BD
SGND
0.66V
40k
40k
40k
40k
SWITCH
LOGIC
AND
ANTISHOOT-
THROUGH
OV
RUN
ON
FCNT
PLL-SYNC
TEMPSNS
+
C
IN
+
V
IN
DIFFOUT
V
OUT