LTC3589 Linear Technology, LTC3589 Datasheet - Page 11

• Manufacturer Part Number: LTC3589
• Description: 8-Output Regulator
• Manufacturer: Linear Technology

TYPICAL PERFORMANCE CHARACTERISTICS
1V/DIV
500
400
300
200
100
500
400
300
200
100
0
0
–50
–50
LDO1 Dropout Voltage vs
Temperature
LDO2, LDO3, LDO4 Dropout
Voltage vs Temperature
LDO2, LDO3, LDO4 Enable
Response
–25
–25
V
LDO4
0
0
V
V
TEMPERATURE (°C)
LDO1
TEMPERATURE (°C)
EN_LDO2
=2.8V
V
25
25
LDO
100μs/DIV
V
= 1.8V
V
LDO1
V
= 3.3V
LDO
50
LDO
50
,V
EN_LDO34
= 3.3V
= 1.8V
V
= 1.2V
V
LDO3
75 100
75 100
LDO2
=1.8V
=1.2V
125
125
3589 G31
3589 G25
3589 G28
150
150
100mA/DIV
50mV/DIV
V
–0.5
–1.0
–1.5
–2.0
500
400
300
200
100
I
LDO
LDO
0.5
0.0
0
0
2
LDO2, LDO3, LDO4 Load Step
Response
LOAD CAPACITANCE = 1μF
LDO1 Output Change vs V
LDO2, LDO3, LDO4 Dropout
Voltage vs Load Current
V
LDO1
50
= 25mA
LOAD CURRENT (mA)
1.8V
220mA
3
100
100μs/DIV
V
IN
V
V
LDO
LDO
(V)
150
4
= 1.2V
= 3.3V
V
LDO
V
V
V
V
LDO1
LDO1
LDO1
LDO1
10mA
= 1.8V
IN
200
= 1.2V
= 1.8V
= 2.8V
= 3.3V
5
3589 G29
3589 G26
3589 G32
T
250
A
= 25°C, unless otherwise noted.
50mV/DIV
10mA/DIV
V
LDO1
I
LDO
500
450
400
350
300
250
200
80
70
60
50
40
30
20
–50
–50
LDO1 Load Step Response
LDO1 Short-Circuit Current vs
Temperature
LDO2, LDO3, LDO4 Short-Circuit
Current vs Temperature
–25
–25
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
1.2V
25
25
40μs/DIV
www.DataSheet4U.com
20mA
LTC3589
50
50
75 100
75 100
1mA
11
125
125
3589 G33
3589 G27
3589 G30
3589p
150
150