ltc3566 Linear Technology Corporation, ltc3566 Datasheet - Page 6

• Manufacturer Part Number: ltc3566
• Description: High Ef?ciency Usb Power Manager Plus 1a Buck-boost Converter
• Manufacturer: Linear Technology Corporation

LTC3566
TYPICAL PERFORMANCE CHARACTERISTICS
6
700
600
500
400
300
200
100
100
1.0
0.8
0.2
0.6
0.4
90
80
60
40
70
50
0
0
0.01
2.7
0
Ideal Diode V-I Characteristics
USB Limited Battery Charge
Current vs Battery Voltage
PowerPath Switching Regulator
Effi ciency vs Output Current
5x USB SETTING,
BATTERY CHARGER SET FOR 1A
BAT = 3.8V
0.04
INTERNAL IDEAL DIODE
WITH SUPPLEMENTAL
EXTERNAL VISHAY
Si2333 PMOS
3.0
FORWARD VOLTAGE (V)
1x MODE
BATTERY VOLTAGE (V)
OUTPUT CURRENT (A)
V
R
R
BUS
PROG
CLPROG
0.08
3.3
= 5V
= 1k
0.1
= 3.01k
0.12
INTERNAL IDEAL
DIODE ONLY
3.6
5x, 10x MODE
0.16
V
V
3.9
BUS
BUS
= 0V
= 5V
3566 G04
3566 G01
3566 G07
0.20
4.2
1
0.25
0.20
0.10
0.05
0.15
150
125
100
100
75
50
25
70
60
90
80
0
0
2.7
2.7
2.7
Ideal Diode Resistance
vs Battery Voltage
USB Limited Battery Charge
Current vs Battery Voltage
Battery Charging Effi ciency vs
Battery Voltage with No External
Load (P
1x USB SETTING,
BATTERY CHARGER SET FOR 1A
R
R
I
VOUT
CLPROG
PROG
INTERNAL IDEAL
= 0mA
3.0
3.0
3.0
= 1k
= 3.01k
BAT
INTERNAL IDEAL DIODE
DIODE
WITH SUPPLEMENTAL
BATTERY VOLTAGE (V)
BATTERY VOLTAGE (V)
BATTERY VOLTAGE (V)
EXTERNAL VISHAY
/P
V
R
R
BUS
PROG
CLPROG
Si2333 PMOS
3.3
3.3
3.3
BUS
= 5V
= 1k
)
= 3.01k
3.6
3.6
3.6
1x CHARGING
5x CHARGING
EFFICIENCY
EFFICIENCY
3.9
3.9
3.9
3566 G05
3566 G08
T
3566 G02
A
= 25°C unless otherwise noted.
4.2
4.2
4.2
4.50
4.25
3.75
3.50
3.25
4.00
25
20
10
10
15
50
40
30
20
5
0
0
2.7
0
0
Output Voltage vs Output Current
(Battery Charger Disabled)
Battery Drain Current
vs Battery Voltage
V
Voltage (Suspend)
I
BAT = 3.8V
I
VOUT
BUS
VOUT
BAT = 3.4V
BAT = 4V
= 0μA
200
Quiescent Current vs V
= 0mA
3.0
1
OUTPUT CURRENT (mA)
BATTERY VOLTAGE (V)
(SUSPEND MODE)
V
BUS
400
3.3
2
V
BUS
VOLTAGE (V)
= 5V
600
3.6
3
V
BUS
V
5x MODE
800
= 0V
3.9
BUS
4
BUS
= 5V
3566 G03
3566 G06
3566 G09
3566p
1000
4.2
5