LTC3586-1 Linear Technology, LTC3586-1 Datasheet - Page 9

• Manufacturer Part Number: LTC3586-1
• Description: High Effi ciency USB Power Manager
• Manufacturer: Linear Technology

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TYPICAL PERFORMANCE CHARACTERISTICS
1.230
1.215
1.200
1.185
1.170
100
225
325
300
275
250
200
90
80
70
60
50
40
30
20
10
0
– 40
0.1
0.1
Buck-Boost Regulator Effi ciency
vs I
Switching Regulators 1, 2 Pulse-
Skip Mode Quiescent Currents
Switching Regulators 1, 2 Load
Regulation at V
V
V
IN1,2
BUS
LOAD
V
V
V
PULSE-SKIP
IN3
IN3
IN3
OPERATION
= 3.8V
Burst Mode
–15
= 3.8V
(CONSTANT FREQUENCY)
CURVES
MODE
= 3V
= 3.6V
= 4.5V
1
1
OUTPUT CURRENT (mA)
TEMPERATURE (°C)
OPERATION
Burst Mode
10
I
LOAD
V
OUT1, 2
OUT1, 2
TYPE 3 COMPENSATION
10
10
(mA)
V
(PULSE SKIPPING)
OUT1,2
35
= 2.5V
PWM MODE
= 1.2V
CURVES
V
V
V
V
100
IN3
IN3
IN3
100
OUT3
= 1.25V
60
= 3V
= 3.6V
= 4.5V
= 3.3V
3586 G28
3586 G22
3586 G25
1000
1000
85
1.75
1.95
1.90
1.85
1.80
1.70
0.20
0.10
0.30
0.25
0.15
0.05
0
–55
R
1.845
1.823
1.800
1.778
1.755
PMOS V
PMOS V
DS(ON)
100
PMOS V
–35
90
80
70
60
50
40
30
20
10
0
0.1
1
Switching Regulators 1, 2
Pulse-Skip Mode Effi ciency
Switching Regulators 1, 2 Load
Regulation at V
PULSE-SKIP MODE
–15
V
Burst Mode OPERATION
IN3
IN3
NMOS V
NMOS V
BUS
V
IN3
For Buck-Boost Regulator
OUT1, 2
NMOS V
= 3.6V
= 4.5V
TEMPERATURE (°C)
= 3.8V
= 3V
5
IN3
IN3
OUTPUT CURRENT (mA)
1
OUTPUT CURRENT (mA)
= 2.5V
25
IN3
10
= 3.6V
= 4.5V
= 3V
45
OUT1, 2
V
10
65
OUT1, 2
V
OUT1, 2
85 105
100
= 1.8V
= 1.8V
= 1.2V
V
100
3586 G29
IN1, 2
125
(T
= 3.8V
0.30
0.20
0.10
0.40
0.35
0.25
0.15
3586 G23
3586 G26
A
= 25°C unless otherwise noted)
1000
1000
LTC3586/LTC3586-1
2500
2450
2400
2300
2600
2550
2350
2.56
2.53
2.50
2.47
2.44
100
90
80
70
60
50
40
30
20
10
0
0.1
0.1
–55
Switching Regulators 1, 2
Burst Mode Effi ciency
Buck-Boost Regulator Forward
Current Limit
Switching Regulators 1, 2 Load
Regulation at V
Burst Mode OPERATION
PULSE-SKIP MODE
V
BUS
–35
= 3.8V
–15
V
V
1
OUTPUT CURRENT (mA)
V
1
OUTPUT CURRENT (mA)
IN3
IN3
IN3
TEMPERATURE (°C)
V
V
= 3.6V
= 4.5V
5
OUT1, 2
OUT1, 2
= 3V
25
OUT1, 2
10
V
10
= 2.5V
= 1.8V
OUT1, 2
45
65
= 1.2V
= 2.5V
V
100
100
IN1, 2
85 105
= 3.8V
3586 G24
3586 G27
3586 G30
3586fa
9
1000
1000
125