Datasheet

LTC3589/LTC3589-1/
LTC3589-2
12
3589ff
For more information www.linear.com/3589
Typical perForMance characTerisTics
LDO2, LDO3, LDO4 Dropout
Voltage vs Temperature
LDO2, LDO3, LDO4 Dropout
Voltage vs Load Current
LDO2, LDO3, LDO4 Short-Circuit
Current vs Temperature
LDO2, LDO3, LDO4 Enable
Response
LDO2, LDO3, LDO4 Load Step
Response
LDO1 Load Step Response
3589 G33
40µs/DIV
LOAD CAPACITANCE = 1µF
20mA
V
LDO1
50mV/DIV
I
LDO1
10mA/DIV
1mA
1.2V
3589 G32
10µs/DIV
220mA
10mA
V
LDO
50mV/DIV
I
LDO
100mA/DIV
1.8V
LOAD CAPACITANCE = 1µF
3589 G31
100µs/DIV
V
EN_LDO2
,V
EN_LDO34
1V/DIV
V
LDO2
=1.2V
V
LDO4
=2.8V
V
LDO3
=1.8V
TEMPERATURE (°C)
–50
SHORT-CIRCUIT CURRENT (mA)
75 100
3589 G30
400
450
500
250
350
300
–25 0 25 50
200
150125
LOAD CURRENT (mA)
0
DROPOUT VOLTAGE (mV)
150 200
3589 G29
300
400
500
200
100
50 100
0
250
V
LDO
= 1.2V
V
LDO
= 1.8V
V
LDO
= 3.3V
TEMPERATURE (°C)
–50
DROPOUT VOLTAGE (mV)
75 100
3589 G28
300
400
500
200
100
–25 0 25 50
0
150125
V
LDO
= 1.2V
V
LDO
= 1.8V
V
LDO
= 3.3V
V
IN
= 3.8V, T
A
= 25°C, unless otherwise noted.