LTC3851 LINER [Linear Technology], LTC3851 Datasheet - Page 9

• Manufacturer Part Number: LTC3851
• Description: Synchronous Step-Down Switching Regulator Controller
• Manufacturer: LINER [Linear Technology]

FUNCTIONAL DIAGRAM
FREQ/PLLFLTR
I
0.8V
REF
LIM
V
IN
PLL-SYNC
0.4V
–
SLEEP
MODE/PLLIN
+
100k
I
THB
1
I
CMP
MODE/SYNC
DETECT
100k
+
–
OSC
INTV
+
CC
EA
+
5k
–
SLOPE COMPENSATION
R
I
S
R
–
C
+
TH
C
C1
UVLO
Q
I
0.64V
REV
–
SS
–
+
0.8V
+
1.25V
–
RUN
PULSE SKIP
RUN
+
RUN
ON
OV
THROUGH
SWITCH
SHOOT
LOGIC
ANTI-
AND
TK/SS
C
SS
BURSTEN
1μA
5V REG
UV
OV
+
–
+
–
0.72V
SENSE
SENSE
3851 FD
BOOST
INTV
C
GND
V
SW
VCC
V
TG
BG
IN
FB
0.88V
CC
+
–
2μA
C
D
B
B
R2
R1
+
C
LTC3851
IN
M1
M2
L1
V
IN
+
V
9
OUT
3851f
C
OUT