LTC3612_15 Datasheet, PDF (11/30 Pages) Linear Technology – 3A, 4MHz Monolithic Synchronous Step-Down DC/DC Converter

FUNCTIONAL Block Diagram
LTC3612
SV_IN SGND
RT/SYNC
ITH
ITH SENSE
PV_IN
PV_{IN_DRV}
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
PGOOD
0.555V +
–
+
0.645V –
LOGIC
REVERSE
COMPARATOR
I_REV
DDR
MODE
DRIVER
SW
SW
SW
SW
PGND
EXPOSED PAD
3612 BD
For more information www.linear.com/LTC3612
3612fc
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