Instruction Manual

MAX15040
High-Efficiency, 4A, Step-Down Regulator with
Integrated Switches in 2mm x 2mm Package
8 _______________________________________________________________________________________
Block Diagram
CONTROL
LOGIC
IN
LX
GND
ILIM
THRESHOLD
IN
BST
THERMAL
SHUTDOWN
SOFT-START
VOLTAGE
REFERENCE
BIAS
GENERATOR
OSCILLATOR
1V
P-P
SHUTDOWN
CONTROL
UVLO
CIRCUITRY
V
DD
SHDN
FB
0.9 x V
REFIN/SS
FB
COMP
GND
PWRGD
ERROR
AMPLIFIER
PWM
COMPARATOR
CURRENT-LIMIT
COMPARATOR
ILIM THRESHOLD
BST SWITCH
SHDN
LX
COMP CLAMPS
EN
REFIN/SS
CURRENT-LIMIT
COMPARATOR
MAX15040