Datasheet

Automotive Power-Management IC with
Three Step-Down Converters and Linear Regulator
MAX16920
10
Functional Diagram
VOLTAGE
SENSE
V
INB
V
INA
FET
DRIVE
DC-DC1
LX1
OUT1
FB1
BST2
LX2
FB2
EN2
CONTROL
OSCILLATOR
INTERNAL
REGULATOR
OVERTEMPERATURE
SENSOR
V
L
ODRV
V
INA
BST1
PGNDB
UVI
UVS
30V
EN2
DC-DC2
DIVIDE
BY 2*
V
INB
PGNDB
PGNDA
OUT2
BST3
LX3
FB3
OUT3
POR
DC-DC3
V
INB
LDO
V
INA
OUTA
UVO
PG2
PG3
PGA
ENA
*DIVIDE BY 2 IS ONLY
FOR MAX16920A.
EN3
SYNC
OT
GND
PGNDA
PGNDB
MAX16920