LTC3615 LINER [Linear Technology], LTC3615 Datasheet - Page 11
LTC3615
Manufacturer Part Number
LTC3615
Description
Dual 4MHz, 3A Synchronous Step-Down DC/DC Converter
Manufacturer
LINER [Linear Technology]
Datasheet
1.LTC3615.pdf
(32 pages)
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FuncTional block DiagraM
PGOOD1
FB1
MODE
TRACK/SS1
RUN1
RUN2
R
PHASE
SV
SGND
PGOOD2
FB2
TRACK/SS2
V
T
REF
IN
/SYNC
IDEAL
DIODE
UNDERVOLTAGE
+ –
LOCKOUT
DELAY
+
–
SOFT-START
ERROR
AMPLIFIER
OR
SHUTDOWN
+
MODE
COMPARATOR
OSCILLATOR
BURST
AND PHASE
SELECTOR
–
CONTROLLER LOGIC
PLL
CLK1
CLK2
PGOOD
WINDOW-
COMPARATOR
COMPENSATION
SLOPE
REVERSE
CURRENT
COMPARATOR
COMPARATOR
CURRENT
PMOS
GATE DRIVER
+
–
COMPENSATION
ITH-VOLTAGE
+
–
INTERNAL/
EXTERNAL
0A
CURRENT SENSE
LIMIT
ITH2
ITH1
NMOS
DUPLICATE FOR CHANNEL 2
CURRENT SENSE
PMOS
CHANNEL 1
SRLIM
PGND
PV
PV
LTC3615
SW2
SW1
IN2
IN1
3615f