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LTC3589 Datasheet(PDF) 9 Page - Linear Technology

Part # LTC3589
Description  8-Output Regulator with Sequencing and I2C
PDF  44 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3589 Datasheet(HTML) 9 Page - Linear Technology

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LTC3589
9
3589p
TYPICAL PERFORMANCE CHARACTERISTICS
Oscillator Frequency vs
Temperature
Switching Frequency Change vs VIN
Buck-Boost Efficiency vs IOUT
Buck-Boost Efficiency vs IOUT
Step-Down Switching Regulator 1
Efficiency vs IOUT
Step-Down Switching Regulator 2
Efficiency vs IOUT
TA = 25°C, unless otherwise noted.
Step-Down Switching Regulator 3
Efficiency vs IOUT
Buck-Boost RDS(ON) vs Temperature
Step-Down Switching Regulator
RDS(ON) vs Temperature
TEMPERATURE (°C)
–50
70
3589 G07
2.20
2.25
2.30
2.10
2.15
2.00
2.05
–10
30
110
1.95
150
VOLTAGE (V)
2.5
4.0
3589 G08
0.6
0.8
1.0
–0.2
0
0.2
0.4
–0.6
–0.4
3.0
3.5
4.5
–0.8
5.5
5.0
LOAD CURRENT (mA)
0
50
40
30
60
70
100
0.01
0.1
1
10
100
1000
3589 G9
20
10
80
90
BURST
FORCED
CONTINUOUS
VOUT = 5.0V
VOUT = 2.5V
VOUT = 3.3V
VIN = 3.8V
LOAD CURRENT (mA)
0
50
40
30
60
70
100
0.01
0.1
1
10
100
1000
3589 G10
20
10
80
90
BURST
FORCED
CONTINUOUS
VIN = 5.0V
VIN = 4.2V
VIN = 3.0V
VOUT = 3.3V
LOAD CURRENT (mA)
0
50
40
30
60
70
100
0.01
0.1
1
10
100
1000
3589 G12
20
10
80
90
FORCED
CONTINUOUS
PULSE-SKIPPING
BURST
VOUT = 1.8V
LOAD CURRENT (mA)
0
50
40
30
60
70
100
0.01
0.1
1
10
100
1000
3589 G13
20
10
80
90
FORCED
CONTINUOUS
PULSE-
SKIPPING
BURST
VOUT = 1.2V
TEMPERATURE (°C)
–50
70
3589 G14
0.35
0.40
0.15
0.20
0.25
0.30
0.05
0.10
–10
30
0
150
110
BUCK2 PMOS
BUCK1 PMOS
BUCK2 NMOS
BUCK1 NMOS
TEMPERATURE (°C)
–50
70
3589 G15
0.15
0.20
0.25
0.05
0.10
–10
30
0
150
110
PMOS
NMOS
LOAD CURRENT (mA)
0
50
40
30
60
70
100
0.01
0.1
1
10
100
1000
3589 G11
20
10
80
90
PULSE-SKIPPING
FORCED
CONTINUOUS
VOUT = 1.2V
BURST



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