Rainbow Electronics MAX15051 - Manual (Page 8)

MAX15050/MAX15051
High-Efficiency, 4A, 1MHz, Step-Down Regulators
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
V RAMP
SHUTDOWN
CONTROL
UVLO
CIRCUITRY
V
DD
3.3V (LDO)
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
MAX15050
MAX15051