LTC3589HUJ#PBF Linear Technology, LTC3589HUJ#PBF Datasheet - Page 10

• Manufacturer Part Number: LTC3589HUJ#PBF
• Description: IC DC/DC CONV 8-OUTPUT 40QFN
• Manufacturer: Linear Technology

Specifications of LTC3589HUJ#PBF

• Applications: Handheld/Mobile Devices
• Current - Supply: 8µA
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: *
• Primary Input Voltage: 5.5V
• No. Of Outputs: 8
• Output Voltage: 5V
• Output Current: 1.6A
• No. Of Pins: 40
• Operating Temperature Range: -40°C To +150°C
• Msl: MSL 1 - Unlimited
• No. Of Ldo Regulators: 3
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TYPICAL PERFORMANCE CHARACTERISTICS
LTC3589/LTC3589-1
10
100
100
3.5
3.0
2.5
2.0
1.5
1.0
0.5
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
0
0.01
0.01
–50
Buck-Boost Efficiency vs I
Step-Down Switching Regulator 3
Efficiency vs I
Step-Down Switching
Regulator Current Limit
vs Temperature
V
V
OUT
OUT
BURST
–25
= 3.3V
= 3.3V
0.1
0.1
BURST
BUCK2, BUCK3 (LTC3589-1)
0
PULSE-
SKIPPING
LOAD CURRENT (mA)
LOAD CURRENT (mA)
TEMPERATURE (°C)
1
1
25
OUT
BUCK1
BUCK2, BUCK3
50
10
10
PWM MODE
75 100
FORCED
CONTINUOUS
100
100
V
V
V
IN
IN
IN
OUT
= 5.0V
= 4.2V
= 3.0V
1000
1000
125
3589 G10
3589 G13
3589 G16
150
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
100
3.5
3.0
2.5
2.0
1.5
1.0
0.5
90
80
70
60
50
40
30
20
10
0
0
0
0.01
–50
–50
Step-Down Switching Regulator 1
Efficiency vs I
Step-Down Switching Regulator
R
Buck-Boost Current Limit
vs Temperature
V
DS(ON)
OUT
–25
BUCK2, 3 PMOS
= 1.2V
0.1
BUCK1 NMOS
–10
vs Temperature
PEAK LIMIT
0
CLAMP LIMIT
LOAD CURRENT (mA)
BURST
TEMPERATURE (°C)
TEMPERATURE (°C)
1
25
30
OUT
BUCK2, 3 NMOS
BUCK1 PMOS
50
10
70
PULSE-SKIPPING
75 100
100
FORCED
CONTINUOUS
110
1000
125
3589 G11
3589 G14
3589 G17
V
IN
150
150
= 3.8V, T
500mV/DIV
200mA/DIV
0.25
0.20
0.15
0.10
0.05
100
90
80
70
60
50
40
30
20
10
A
0
0
0.01
–50
= 25°C, unless otherwise noted.
Step-Down Switching Regulator 2
Efficiency vs I
Buck-Boost R
Step-Down Switching Regulator
Soft-Start
V
OUT
= 1.8V
0.1
–10
BURST
LOAD CURRENT (mA)
TEMPERATURE (°C)
PMOS
1
DS(ON)
30
200μs/DIV
OUT
10
PULSE-SKIPPING
vs Temperature
70
FORCED
CONTINUOUS
I
L
100
V
NMOS
OUT
110
1000
3589 G12
3589 G15
3589 G18
3589fc
150