LTC3589HUJ#PBF Linear Technology, LTC3589HUJ#PBF Datasheet - Page 11

• 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

500mA/DIV
TYPICAL PERFORMANCE CHARACTERISTICS
50mV/DIV
1V/DIV
1A/DIV
500
400
300
200
100
0
–50
Buck-Boost Switching Regulator
Soft-Start
Step-Down Switching Regulator 1
Load Step
LDO1 Dropout Voltage
vs Temperature
LOAD CAPACITANCE = 44μF
Burst Mode OPERATION
–25
0
V
V
TEMPERATURE (°C)
LDO1
OUT
V
I
25
LOAD
OUT
100μs/DIV
40μs/DIV
V
= 1.8V
LDO1
50
= 3.3V
I
L
75 100
125
3589 G19
3589 G22
3589 G25
150
200mV/DIV
1V/DIV
5V/DIV
5V/DIV
1A/DIV
–0.5
–1.0
–1.5
–2.0
0.5
0.0
2
V
Buck-Boost Switching Regulator 1
Load Step
LOAD CAPACITANCE = 22μF
LDO1 Output Change vs V
Dynamic Voltage Slew
RRCR
V
LDO1
= 1.75mV/μs
= 25mA
3
V
OUT
V
I
OUT
LOAD
200μs/DIV
40μs/DIV
V
IN
(V)
PGOOD
V
4
STB
V
V
V
V
LDO1
LDO1
LDO1
LDO1
IN
= 1.2V
= 1.8V
= 2.8V
= 3.3V
5
3589 G20
3589 G23
3589 G26
V
IN
= 3.8V, T
LTC3589/LTC3589-1
50mV/DIV
1A/DIV
2.5
2.0
1.5
1.0
0.5
A
80
70
60
50
40
30
20
0
–50
= 25°C, unless otherwise noted.
2.5
LOAD CAPACITANCE = 44μF
Maximum Buck-Boost Load
Current vs V
Step-Down Switching Regulator 1
Load Step
LDO1 Short-Circuit Current
vs Temperature
PULSE-SKIPPING MODE
–25
3.0
0
V
TEMPERATURE (°C)
3.5
OUT
I
IN
25
LOAD
40μs/DIV
V
IN
4.0
50
(V)
75 100
4.5
V
V
V
OUT
OUT
OUT
11
5.0
= 1.8V
= 3.3V
= 5V
125
3589 G27
3589 G21
3589 G24
3589fc
150
5.5