LTC3589-2_15 Datasheet, PDF (12/50 Pages) Linear Technology – 8-Output Regulator with Sequencing and I2C

LTC3589/LTC3589-1/
LTC3589-2
Typical Performance Characteristics V_IN = 3.8V, T_A = 25°C, unless otherwise noted.
LDO2, LDO3, LDO4 Dropout
Voltage vs Temperature
500
400
V_LDO = 1.2V
300
V_LDO = 1.8V
200
100
V_LDO = 3.3V
0
–50 –25 0 25 50 75 100
TEMPERATURE (°C)
I_LOAD = 200mA
125 150
3589 G28
LDO2, LDO3, LDO4 Enable
Response
LDO2, LDO3, LDO4 Dropout
Voltage vs Load Current
500
400
V_LDO = 1.2V
300
V_LDO = 1.8V
200
100
0
0
V_LDO = 3.3V
50 100 150 200 250
LOAD CURRENT (mA)
3589 G29
LDO2, LDO3, LDO4 Load Step
Response
LDO2, LDO3, LDO4 Short-Circuit
Current vs Temperature
500
450
400
350
300
250
200
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
3589 G30
LDO1 Load Step Response
1V/DIV
V_LDO4 =2.8V
V_LDO3 =1.8V
V_LDO2 =1.2V
V_{EN_LDO2},V_{EN_LDO34}
V_LDO
50mV/DIV
I_LDO
100mA/DIV
1.8V
220mA
V_LDO1
50mV/DIV
10mA
I_LDO1
10mA/DIV
1.2V
20mA
1mA
100µs/DIV
3589 G31
10µs/DIV
LOAD CAPACITANCE = 1µF
3589 G32
40µs/DIV
LOAD CAPACITANCE = 1µF
3589 G33
12
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3589fg