Datasheet

LTC3634
10
3634fb
For more information www.linear.com/LTC3634
block DiagraM
3634 BD
+
–
SWITCH
LOGIC
AND
ANTI-
SHOOT
THROUGH
R
S
3V
BOOST
M1
M2
SW
PGND
150k
Q
–
+
t
ON
=
V
VON
I
ON
I
ON
CONTROLLER
A
V
= 1
V
IN
V
IN
V
ON
I
CMP
I
REV
RUN
I
ON
ON
1.22V
OSC1
CHANNEL 1
CHANNEL 2 (SAME AS CHANNEL 1)
+
–
INTV
CC
RUN
–
+
0.552V
TRACKSS
TRACKSS
MODE/SYNC
VDDQIN
INTV
CC
–
+
–
+
–
+
0.6V
REF
0.648V
OV
EA
UV
1.4µA
INTERNAL
SOFT-START
INTERNAL
SOFT-START
INTV
CC
–
+
–
+
OV
UV
MODE
SELECT
3.3V
REG
IDEAL DIODES
IDEAL DIODES
PV
IN1
BURSTFC
V
FB1
OSC
PLL-SYNC
0.48V AT START-UP
0.10V AFTER START-UP
VDDQIN • 0.54
VDDQIN • 0.46
OSC
OSC1
OSC2
PHASE
SELECT
+
–
–
+
VTTR
V
FB2
ITH2
PGOOD2
PGOOD1
ITH1
PHMODE
RT
C
BOOST
L1
C
OUT
C
IN
R2
R1
C
SS
C
VCC
C
C2
R
C2
C
C1
R
C1
R
RT
TG
BG
SENSE
–
SENSE
+
EA
VDDQIN • 0.5