Datasheet

10 Maxim Integrated
High-Efficiency, 4A, Step-Down DC-DC
Regulators with Internal Power Switches
MAX15066/MAX15166
Block Diagram
5V LDO
ENABLE CONTROL AND
THERMAL SHUTDOWN
EN
SS
FB
COMP
V
DD
BST
IN
LX
GND
BIAS GENERATOR
CONTROL
LOGIC
CURRENT-SENSE AMPLIFIER
AND CURRENT LIMIT
UVLO
COMPARATOR
3.9V/3.75V
V
DD
OSCILLATOR
VOLTAGE REFERENCE
1.6V
CLAMP
5µA
ZERO-CROSSING
CURRENT LIMIT
ERROR
AMPLIFIER
PWM
COMPARATOR
PGOOD
POWER-GOOD
COMPARATOR
0.560V RISING,
0.545V FALLING
C
V
DD
0.606
MAX15066
MAX15166
LX
MAX15066 (500kHz)
MAX15166 (350kHz)