Datasheet
LTC3676/LTC3676-1
12
3636fa
For more information www.linear.com/LTC3676
BLOCK DIAGRAM—LTC3676
BUCK1
V
REF
EN
OK
DEFAULT = 725mV
RANGE = 800mV
TO 412.5mV
PV
IN1
SW1
FB_B1
DAC
LDO1
EN
725mV
V
IN
LDO1
FB_L1
BUCK2
V
REF
EN
OK
DEFAULT = 725mV
RANGE = 800mV
TO 412.5mV
PV
IN2
SW2
FB_B2
DAC
BUCK3
V
REF
EN
OK
DEFAULT = 725mV
RANGE = 800mV
TO 412.5mV
PV
IN3
SW3
FB_B3
DAC
BUCK4
LDO2
V
REF
EN
OK
DEFAULT = 725mV
RANGE = 800mV
TO 412.5mV
PRECISION ENABLE
THRESHOLD AND
SEQUENCE DELAY
PV
IN4
SW4
V
IN_L2
LDO2
FB_B4
V
REF
725mV
EN
OK
FB_L2
DAC
LDO4
V
IN_L4
LDO4
V
REF
EN
OK
GND
(EXPOSED PAD)
FB_L4
3676 BD
LDO3
V
IN_L3
LDO3
V
REF
EN
OK
EN_B1
5
5
5
5
PUSHBUTTON
ON/OFF
CONTROL
ON
WAKE
EN_B2
EN_B3
I
2
C COMMAND
REGISTERS
DV
DD
DYNAMIC VOLTAGE
SCALING CONTROL
FAULT DETECTION
UNDER VOLTAGE
OVER TEMPERATURE
SDA
SCL
VSTB
EN_B4
EN_L2
EN_L3
EN_L4
PWR_ON
RSTO
IRQ
PGOOD
VSEL
VA 4x5
7
7
7
VB 4x5