MAX15109 Datasheet, PDF (9/19 Pages) Maxim Integrated Products – High-Efficiency, 8A, Current-Mode Synchronous Step-Down Switching Regulator

High-Efficiency, 8A, Current-Mode Synchronous
Step-Down Switching Regulator with VID Control
Functional Diagram
EN
MAX15109
BIAS
GENERATOR
EN LOGIC, IN UVLO
THERMAL SHDN
SHDN
VOLTAGE
VREF
REFERENCE
VID0
VID
VID1
CONTROL
STRONG PREBIAS
FORCED_START
0.58V
SS
CK
SS BUFFER
FB
COMP
10µA
ERROR
AMPLIFIER
GROUND SENSE
BUFFER
OSCILLATOR
RAMP
RAMP GEN
C
CK
VPGT,
VPGH
POWER-GOOD
COMPARATOR
HIGH-SIDE
CURRENT LIMIT
LX
CURRENT-SENSE
AMPLIFIER
LX
IN
IN
CONTROL
LOGIC
IN
LOW-SIDE
SOURCE-SINK CURRENT LIMIT
AND ZERO-CROSSING
COMPARATOR
SINK
SOURCE
ZX
IN
INX
LX
PGND
PGOOD
_______________________________________________________________________________________   9