MAX15041_10 Datasheet, PDF (9/18 Pages) Maxim Integrated Products – Low-Cost, 3A, 4.5V to 28V Input, 350kHz, PWM Step-Down DC-DC Regulator with Internal Switches

Low-Cost, 3A, 4.5V to 28V Input, 350kHz, PWM
Step-Down DC-DC Regulator with Internal Switches
Simplified Block Diagram
EN
SS
FB
COMP
SGND
ENABLE CONTROL
AND THERMAL
SHUTDOWN
BIAS
GENERATOR
5V LDO
MAX15041
UVLO
COMPARATOR
4V
V_DD
CURRENT-SENSE/CURRENT-LIMIT
AMPLIFIER
LX
VOLTAGE
REFERENCE
0.65V
CONTROL
LOGIC AND
SINK LIMIT
V_DD
5µA
0.606V
STRONG PREBIAS
COMPARATOR
PWM
COMPARATOR
ERROR
AMPLIFIER
Σ
OSCILLATOR
0.560V RISING,
0.545V FALLING
POWER-GOOD
COMPARATOR
V_DD
BST
IN
N
LX
N
PGND
PGOOD
N
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