MAX15118 Datasheet, PDF (11/23 Pages) Maxim Integrated Products – High-Efficiency, 18A, Current-Mode Synchronous Step-Down Regulator with Integrated Switches

MAX15118
High-Efficiency, 18A, Current-Mode Synchronous
Step-Down Regulator with Integrated Switches
Functional Diagram
SKIP
EN
AIN
IN
BIAS
GENERATOR
EN LOGIC,
IN UVLO, THERMAL
SHDN
SKIP MODE
LOGIC
SKPM
CURRENT-SENSE
AMPLIFIER
VOLTAGE
REFERENCE
LX
MAX15118
HIGH-SIDE
0.58V
CURRENT LIMIT
SS/REFIN
0.6V
10µA
SS/REFIN BUFFER
PREBIAS
ABOVE
FORCED
PWM
START
LX
IN
BST
AV = 1
ERROR
AMPLIFIER
PWM
GSNS
g_M
COMPARATOR
CONTROL
LOGIC
LX
FB
COMP
PGOOD
C
CK
IN
555mV, RISING
530mV, FALLING
GND
OSCILLATOR
RAMP
GENERATOR
COMPENSATION
RAMP
CK
LOW-SIDE SOURCE-SINK
CURRENT-LIMIT AND ZERO-
CROSSING COMPARATOR
SOURCE
SINK
ZX
SKPM
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