Datasheet

LTC3589/LTC3589-1/
LTC3589-2
15
3589ff
For more information www.linear.com/3589
block DiagraM
3589 BD
POWER
GOOD
1.8V, 2.5V, 2.8V, 3.3V (LTC3589)
1.2V, 1.8V, 2.5V, 3.2V (LTC3589-1/
LTC3589-2) AT 250mA
LDO1_STDBY
LDO1_FB
IRQ
ALWAYS ON LDO1
0.8V TO V
IN
AT 25mA
V
IN
V
REF
OK
ON (PB)
PBSTAT
WAKE
PWR_ON
VSTB
EN1
EN2
EN3
EN4
EN_LDO2
CONTROL + SEQUENCE
EN_LDO34
EN_LDO3
(LTC3589-1/
LTC3589-2)
DV
DD
SDA
SCL
I
2
C
PGOOD
n
RSTO
V
IN_LDO34
LDO4
GND (EXPOSED PAD)
LDO4
V
REF
OK
EN
V
REF
BUCK-BOOST
PV
IN4
BB_OUT
1.8V TO 5.0V
AT 1.2A
0.5V TO V
IN
AT 1.6A
0.5V TO V
IN
AT 1A/1.2A
0.5V TO V
IN
AT 1A/1.2A
0.36V TO V
IN
AT 250mA
1.8V (LTC3589)
2.8V (LTC3589-1/
LTC3589-2) AT 250mA
BB_FB
PV
IN1
SW1
BUCK1_FB
PV
IN2
SW2
SW3
BUCK2_FB
BUCK3_FB
PV
IN3
V
IN_LDO2
LDO2_FB
LDO2
LDO3
SW4AB
SW4CD
EN
OK
EN
OK
EN
OK
EN
OK
V
REF
BUCK 1
V
REF
BUCK 2
V
REF
BUCK 3
LDO3
V
REF
OK
EN
LDO2
DAC
DAC
DAC
DAC
EN-PINS
EN-I
2
C
V
REF
OK
EN
7