Rainbow Electronics MAX15038 - Manual (Page 10)

MAX15038
4A, 2MHz Step-Down Regulator
with Integrated Switches
10 ______________________________________________________________________________________
Block Diagram
CONTROL
LOGIC
IN
LX
PGND
MODE
IN
BST
THERMAL
SHUTDOWN
SOFT-START
VOLTAGE
REFERENCE
BIAS
GENERATOR
OSCILLATOR
1V P-P
SHUTDOWN
CONTROL
UVLO
CIRCUITRY
3.3V LDO
V DD
SHDN
FB
0.9 x V REFIN
SS
FB
COMP
GND
PWRGD
FREQ
ERROR
AMPLIFIER PWM
COMPARATOR
CURRENT-LIMIT
COMPARATOR
CURRENT-LIMIT
COMPARATOR
BST SWITCH
COMP CLAMPS
EN
REFIN
VID
VOLTAGE-
CONTROL
CIRCUITRY
OUT
CTL2
CTL1
8k Ω
MAX15038