Datasheet

LTC3809-1
8
38091fc
FUNCTIONAL DIAGRAM
V
IN
–
+
–
+
–
+
–
+
–
+
SLOPE
SENSE
+
IPRG
CLK
ICMP
R
S
Q
ANTI-SHOOT-
THROUGH
GND
TG
BG
OV
UV
0.68V
0.54V
FCB
0.6V
TRK/SS
FCB
SLEEP
BURSTDIS
0.15V
0.3V
38091 FD
SW
L
MP
MN
SWITCHING
LOGIC AND
BLANKING
CIRCUIT
–
+
+
SW
GND
–
+
EAMP
RICMP
BURSTDIS
MODE
MUX TRK/SS
t = 0.74ms
INTERNAL
SOFT-START
1μA
RUN
UVSD
0.6V
0.7μA
UNDERVOLTAGE
LOCKOUT
VOLTAGE
REFERENCE
9
6
5
TRACK/SS
2
GND
11
1
8
10
7
4
3
BURST DEFEAT
OSC
V
IN
V
IN
V
IN
V
REF
V
FB
V
FB
C
C
I
REV
V
OUT
C
OUT
PV
IN
I
TH
V
IN
V
REF
C
IN
R
C
R
A
R
B
I
REV