Datasheet

LTC3605A
7
3605afg
For more information www.linear.com/LTC3605A
block DiagraM
–
++
–
+
–
+
19
SV
IN
MODE
3pF
100K
35pF
20k
Q6
3.3µA
RUN
SWITCH
LOGIC
AND
ANTI-
SHOOT
THROUGH
BG
OV
ON
1
180k
Q1
Q2
0.6V 1.2V
RUN
EA
SS
Q4
TRACK/SS
C
SS
57
3605A BD
SGND
R2
R1
22
4
RUN
10, 25
PGND
PGOOD
FB
SW
TG
C
B
PV
IN
17-18
C
IN
BOOST
11–16
SENSE
+
SENSE
–
20
1
–
+
–
+
OV
0.66V
–
+
0.3V
FOLDBACK
x 4 + 0.6
FOLDBACK
DISABLED
AT START-UP
UV
0.54V
C
VCC
6V0.6V
V
OUT
INT
VCC
V
OUT
M2
M1
L1
C
OUT
INTV
CC
ITH
R
C
C
C1
6
C
IN2
–
+
–
+
2.5µA
0µA TO 10µA
–3.3µA TO 6.7µA
D
B
I
THB
I
CMP
I
REV
8
3.3V
REG
I
ON
PLL-SYNC
(±30%)
OSC
PLL-SYNC
(±30%)
12 x OSC
35pF
100k
3pF
9 3
21
R
0.6V
REF
S Q
2
PHMODE
24
23
I
ON
OST
CLKOUT
CLKIN
RT
R
T
V
ON
x =
V
IN
INTV
CC
t
ON
= (0.64pF)
V
VON
I
ION
1Ω
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