LTC3559 Linear Technology, LTC3559 Datasheet - Page 7

• Manufacturer Part Number: LTC3559
• Description: Linear USB Battery Charger
• Manufacturer: Linear Technology

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TYPICAL PERFORMANCE CHARACTERISTICS
2.60
2.58
2.56
2.54
2.52
2.50
2.48
2.44
1.24
1.23
1.22
1.21
1.19
1.17
1.16
1.15
2.46
1.25
1.20
1.18
100
90
80
70
60
50
40
30
20
10
0
0.1
2.7
1
Buck Regulator Effi ciency vs I
Buck Regulator Line Regulation
Buck Regulator Load Regulation
PV
V
V
I
OPERATION
LOAD
Burst Mode
OUT
OUT
IN
= 3.8V
= 1.2V
= 2.5V
= 200mA
3.0
1
10
OPERATION
PULSE SKIP
Burst Mode
3.3
I
I
LOAD
LOAD
PV
MODE
10
IN
PULSE SKIP
MODE
(mA)
(mA)
(V)
3.6
100
100
V
PV
OUT
3.9
IN
= 4.2V
= 2.5V
LOAD
3559 G29
3559 G25
3559 G27
1000
1000
4.2
2.60
2.58
2.56
2.54
2.52
2.50
2.48
2.46
2.44
1.25
1.24
1.23
1.22
1.21
1.20
1.19
1.18
1.17
1.16
1.15
100
90
80
70
60
50
40
30
20
10
0
0.1
2.7
1
Buck Regulator Effi ciency vs I
Buck Regulator Load Regulation
Buck Regulator Line Regulation
PV
V
V
I
LOAD
OUT
OUT
IN
OPERATION
Burst Mode
= 3.8V
= 2.5V
= 1.2V
= 200mA
3.0
1
PULSE SKIP
OPERATION
Burst Mode
10
MODE
I
3.3
I
LOAD
LOAD
PV
PULSE SKIP
10
IN
MODE
(mA)
(mA)
(V)
3.6
100
100
V
PV
PV
OUT
3.9
IN
IN
= 1.2V
= 2.7V
= 4.2V
LOAD
3559 G26
3559 G28
3559 G30
1000
1000
4.2
LTC3559
7
3559f