LTC3614_15 Datasheet, PDF (10/30 Pages) Linear Technology – 4A, 4MHz Monolithic Synchronous Step-Down DC/DC Converter

LTC3614
FUNCTIONAL Block Diagram
SV_IN SGND
RT/SYNC
ITH
ITH SENSE
PV_IN PV_IN PV_IN PV_IN
COMPARATOR
+
RUN
BANDGAP
AND
OSCILLATOR
BIAS
SV_IN – 0.3V _–
INTERNAL
COMPENSATION
CURRENT
SENSE
R
–
+
V_FB
TRACK/SS
ITH
LIMIT
PMOS CURRENT
COMPARATOR
–
0.3V
+
FOLDBACK
AMPLIFIER
0.6V
+
–
SOFT-START
ERROR
AMPLIFIER
BURST
– ^COMPARATOR
SLEEP
+
+
MODE
SLOPE
COMPENSATION
DRIVER
PGOOD
0.555V +
–
+
0.645V –
LOGIC
REVERSE
COMPARATOR
I_REV
SRLIM/DDR MODE
SW
SW
SW
SW
SW
SW
SW
SW
PGND
EXPOSED PAD
3614 BD
3614fc
10
For more information www.linear.com/LTC3614