LTC3604 Datasheet, PDF (8/24 Pages) Linear Technology – 2.5A, 15V Monolithic Synchronous Step-Down Regulator

LTC3604
FUNCTIONAL BLOCK DIAGRAM
V_ON
C_IN
V_ON
V_IN
180k
0.72V 6V
I_ON
CONTROLLER
I_ON
RT
OSC
R_RT
MODE/SYNC
OSC
PLL-SYNC
t_ON
=
V_VON
I_ION
R
SQ
15k
+
I_CMP
I_REV
–
FOLDBACK
DISABLED
AT START-UP
0.3V
FOLDBACK
Q2 Q4
I_THB
Q6
V_IN
3.3V
REG
V_IN
INTV_CC
TG
SWITCH
ON
LOGIC
AND
ANTI-
SHOOT
THROUGH
SENSE⁺
SENSE^–
RUN
BG
BOOST
M1
SW
M2
PGND
INTV_CC
PGOOD
0.648V
OV
FB
Q1
EA
0.6V
REF
INTERNAL
SOFT-START
– SS +
0.48V
UV
– ^RUN +
1.25V
INT_VCC
1.4μA
0.552V
ITH
R_C ^CC1
RUN TRACK/SS
C_SS
3604 BD
SGND
C_VCC
C_BOOST
L1
C_OUT
R2
R1
3604f
8