MAX15053_1107 Datasheet, PDF (10/21 Pages) Maxim Integrated Products – High-Efficiency, 2A, Current-Mode Synchronous, Step-Down Switching Regulator

High-Efficiency, 2A, Current-Mode
Synchronous, Step-Down Switching Regulator
Block Diagram
SKIP
EN
BIAS
GENERATOR
EN LOGIC, IN UVLO SHDN
THERMAL SHDN
SKIP-MODE
LOGIC
SKPM
HIGH-SIDE
CURRENT LIMIT
VOLTAGE
REFERENCE
SS/REFIN
STRONG PREBIASED
FORCED START
0.58V
SS/REFIN BUFFER
0.6V
CURRENT-SENSE
AMPLIFIER
IN
LX
LX
IN
SKPM
CONTROL
LOGIC
CK
IN
FB
COMP
ERROR AMPLIFIER
10µA
PWM
COMPARATOR
C
LOW-SIDE SOURCE-SINK
CURRENT LIMIT AND ZERO-
CROSSING COMPARATOR
SINK
SOURCE
ZX
OSCILLATOR
RAMP GEN
RAMP
CK
MAX15053
SKPM
0.555V RISING,
0.527V FALLING
POWER-GOOD
COMPARATOR
IN
LX
GND
PGOOD
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